php.ini directives
PHP Manual

List of php.ini directives

This list includes the php.ini directives you can set to configure your PHP setup.

The "Changeable" column shows the modes determining when and where a directive may be set. See the Changeable mode values section for their definitions.

Configuration options
Name Default Changeable Changelog
allow_call_time_pass_reference "1" PHP_INI_PERDIR PHP_INI_ALL in PHP 4.0.0. Removed in PHP 5.4.0.
allow_url_fopen "1" PHP_INI_SYSTEM PHP_INI_ALL in PHP <= 4.3.4.
allow_url_include "0" PHP_INI_SYSTEM Available since PHP 5.2.0.
always_populate_raw_post_data "0" PHP_INI_PERDIR PHP_INI_ALL in PHP <= 4.2.3. Available since PHP 4.1.0.
apc.cache_by_default "1" PHP_INI_ALL PHP_INI_SYSTEM in APC <= 3.0.12. Available since APC 3.0.0.
apc.enabled "1" PHP_INI_SYSTEM PHP_INI_SYSTEM in APC 2. PHP_INI_ALL in APC <= 3.0.12.
apc.enable_cli "0" PHP_INI_SYSTEM Available since APC 3.0.7.
apc.file_update_protection "2" PHP_INI_SYSTEM Available since APC 3.0.6.
apc.filters NULL PHP_INI_SYSTEM  
apc.gc_ttl "3600" PHP_INI_SYSTEM  
apc.include_once_override "0" PHP_INI_SYSTEM Available since APC 3.0.12.
apc.localcache "0" PHP_INI_SYSTEM Available since APC 3.0.14.
apc.localcache.size "512" PHP_INI_SYSTEM Available since APC 3.0.14.
apc.max_file_size "1M" PHP_INI_SYSTEM Available since APC 3.0.7.
apc.mmap_file_mask NULL PHP_INI_SYSTEM  
apc.num_files_hint "1000" PHP_INI_SYSTEM  
apc.optimization "0" PHP_INI_ALL PHP_INI_SYSTEM in APC 2. Removed in APC 3.0.13.
apc.report_autofilter "0" PHP_INI_SYSTEM Available since APC 3.0.11.
apc.rfc1867 "0" PHP_INI_SYSTEM Available since APC 3.0.13.
apc.rfc1867_freq "0" PHP_INI_SYSTEM  
apc.rfc1867_name "APC_UPLOAD_PROGRESS" PHP_INI_SYSTEM  
apc.rfc1867_prefix "upload_" PHP_INI_SYSTEM  
apc.shm_segments "1" PHP_INI_SYSTEM  
apc.shm_size "30" PHP_INI_SYSTEM  
apc.slam_defense "0" PHP_INI_SYSTEM Available since APC 3.0.0.
apc.stat "1" PHP_INI_SYSTEM Available since APC 3.0.10.
apc.stat_ctime "0" PHP_INI_SYSTEM Available since APC 3.0.13.
apc.ttl "0" PHP_INI_SYSTEM Available since APC 3.0.0.
apc.user_entries_hint "4096" PHP_INI_SYSTEM Available since APC 3.0.0.
apc.user_ttl "0" PHP_INI_SYSTEM Available since APC 3.0.0.
apc.write_lock "1" PHP_INI_SYSTEM Available since APC 3.0.11.
apd.bitmask "0" PHP_INI_ALL Removed in apd 0.9.
apd.dumpdir NULL PHP_INI_ALL  
apd.statement_tracing "0" PHP_INI_ALL Available since apd 0.9.
arg_separator.input "&" PHP_INI_PERDIR Available since PHP 4.0.5.
arg_separator.output "&" PHP_INI_ALL Available since PHP 4.0.5.
asp_tags "0" PHP_INI_PERDIR PHP_INI_ALL in PHP 4.0.0.
assert.active "1" PHP_INI_ALL  
assert.bail "0" PHP_INI_ALL  
assert.callback NULL PHP_INI_ALL  
assert.exception "0" PHP_INI_ALL Available since PHP 7.0.0.
assert.quiet_eval "0" PHP_INI_ALL  
assert.warning "1" PHP_INI_ALL  
auto_append_file NULL PHP_INI_PERDIR PHP_INI_ALL in PHP <= 4.2.3.
auto_detect_line_endings "0" PHP_INI_ALL Available since PHP 4.3.0.
auto_globals_jit "1" PHP_INI_PERDIR Available since PHP 5.0.0.
auto_prepend_file NULL PHP_INI_PERDIR PHP_INI_ALL in PHP <= 4.2.3.
axis2.client_home "~/work/axisc/c/deply" PHP_INI_ALL  
axis2.enable_exception "1" PHP_INI_ALL  
axis2.enable_trace "1" PHP_INI_ALL  
axis2.log_path "/tmp" PHP_INI_ALL  
bcmath.scale "0" PHP_INI_ALL  
bcompiler.enabled "1" PHP_INI_ALL Available since bcompiler 0.8.
blenc.key_file "/usr/local/etc/blenckeys" PHP_INI_ALL  
browscap NULL PHP_INI_SYSTEM  
cgi.check_shebang_line "1" PHP_INI_SYSTEM Available since PHP 5.2.1.
cgi.discard_path "0" PHP_INI_SYSTEM Available since PHP 5.3.0.
cgi.fix_pathinfo "1" PHP_INI_SYSTEM PHP_INI_ALL in PHP <= 5.2.0. Available since PHP 4.3.0.
cgi.force_redirect "1" PHP_INI_SYSTEM PHP_INI_ALL in PHP <= 5.2.0. Available since PHP 4.2.0.
cgi.nph "0" PHP_INI_ALL Available since PHP 4.3.5.
cgi.redirect_status_env NULL PHP_INI_SYSTEM PHP_INI_ALL in PHP <= 5.2.0. Available since PHP 4.2.0.
cgi.rfc2616_headers "0" PHP_INI_ALL Available since PHP 4.3.0.
child_terminate "0" PHP_INI_ALL Available since PHP 4.0.5.
cli.pager "" PHP_INI_ALL Available since PHP 5.4.0.
cli.prompt "\\b \\> " PHP_INI_ALL Available since PHP 5.4.0.
cli_server.color "0" PHP_INI_ALL Available since PHP 5.4.0.
coin_acceptor.autoreset "On" PHP_INI_ALL Removed in coin_acceptor 0.2.
coin_acceptor.auto_initialize "Off" PHP_INI_ALL Available since coin_acceptor 0.2.
coin_acceptor.auto_reset "On" PHP_INI_ALL Available since coin_acceptor 0.2.
coin_acceptor.command_function "Off" PHP_INI_ALL Available since coin_acceptor 0.3.
coin_acceptor.delay "53132" PHP_INI_ALL Removed in coin_acceptor 0.2.
coin_acceptor.delay_coins "53132" PHP_INI_ALL Available since coin_acceptor 0.2.
coin_acceptor.delay_prom "55748" PHP_INI_ALL Available since coin_acceptor 0.2.
coin_acceptor.device "/dev/ttyS1" PHP_INI_ALL Removed in coin_acceptor 0.2.
coin_acceptor.lock_on_close "Off" PHP_INI_ALL Available since coin_acceptor 0.2.
coin_acceptor.start_unlocked "On" PHP_INI_ALL Available since coin_acceptor 0.2.
com.allow_dcom "0" PHP_INI_SYSTEM Available since PHP 4.0.5.
com.autoregister_casesensitive "1" PHP_INI_ALL PHP_INI_SYSTEM in PHP 4. Available since PHP 4.1.0.
com.autoregister_typelib "0" PHP_INI_ALL PHP_INI_SYSTEM in PHP 4. Available since PHP 4.1.0.
com.autoregister_verbose "0" PHP_INI_ALL PHP_INI_SYSTEM in PHP 4. Available since PHP 4.1.0.
com.code_page "" PHP_INI_ALL Available since PHP 5.0.0.
com.typelib_file "" PHP_INI_SYSTEM Available since PHP 4.0.5.
curl.cainfo NULL PHP_INI_SYSTEM Available since PHP 5.3.7.
daffodildb.default_host "localhost" PHP_INI_ALL  
daffodildb.default_password "daffodil" PHP_INI_ALL  
daffodildb.default_socket NULL PHP_INI_ALL  
daffodildb.default_user "DAFFODIL" PHP_INI_ALL  
daffodildb.port "3456" PHP_INI_ALL  
date.default_latitude "31.7667" PHP_INI_ALL Available since PHP 5.0.0.
date.default_longitude "35.2333" PHP_INI_ALL Available since PHP 5.0.0.
date.sunrise_zenith "90.583333" PHP_INI_ALL Available since PHP 5.0.0.
date.sunset_zenith "90.583333" PHP_INI_ALL Available since PHP 5.0.0.
date.timezone "" PHP_INI_ALL Available since PHP 5.1.0.
dba.default_handler "" PHP_INI_ALL Available since PHP 4.3.3.
dbx.colnames_case "unchanged" PHP_INI_SYSTEM Available since PHP 4.3.0. Removed in PHP 5.1.0.
default_charset "UTF-8" PHP_INI_ALL Default to "UTF-8" since PHP >= 5.6.0, empty for PHP < 5.6.0.
default_mimetype "text/html" PHP_INI_ALL  
default_socket_timeout "60" PHP_INI_ALL Available since PHP 4.3.0.
define_syslog_variables "0" PHP_INI_ALL Removed in PHP 5.4.0.
detect_unicode "1" PHP_INI_ALL Available since PHP 5.1.0. Renamed to zend.detect_unicode since PHP 5.4.0.
disable_classes "" php.ini only Available since PHP 4.3.2.
disable_functions "" php.ini only Available since PHP 4.0.1.
display_errors "1" PHP_INI_ALL  
display_startup_errors "0" PHP_INI_ALL Available since PHP 4.0.3.
docref_ext "" PHP_INI_ALL Available since PHP 4.3.2.
docref_root "" PHP_INI_ALL Available since PHP 4.3.0.
doc_root NULL PHP_INI_SYSTEM  
enable_dl "1" PHP_INI_SYSTEM This deprecated feature will certainly be removed in the future.
enable_post_data_reading On PHP_INI_PERDIR Available since PHP 5.4.0.
engine "1" PHP_INI_ALL Available since PHP 4.0.5.
error_append_string NULL PHP_INI_ALL  
error_log NULL PHP_INI_ALL  
error_prepend_string NULL PHP_INI_ALL  
error_reporting NULL PHP_INI_ALL  
exif.decode_jis_intel "JIS" PHP_INI_ALL Available since PHP 4.3.0.
exif.decode_jis_motorola "JIS" PHP_INI_ALL Available since PHP 4.3.0.
exif.decode_unicode_intel "UCS-2LE" PHP_INI_ALL Available since PHP 4.3.0.
exif.decode_unicode_motorola "UCS-2BE" PHP_INI_ALL Available since PHP 4.3.0.
exif.encode_jis "" PHP_INI_ALL Available since PHP 4.3.0.
exif.encode_unicode "ISO-8859-15" PHP_INI_ALL Available since PHP 4.3.0.
exit_on_timeout "" PHP_INI_ALL Available since PHP 5.3.0
expect.logfile "" PHP_INI_ALL  
expect.loguser "1" PHP_INI_ALL  
expect.timeout "10" PHP_INI_ALL  
expose_php "1" php.ini only  
extension NULL php.ini only  
extension_dir "/path/to/php" PHP_INI_SYSTEM  
fastcgi.impersonate "0" PHP_INI_SYSTEM PHP_INI_ALL in PHP <= 5.2.0. Available since PHP 4.3.0.
fastcgi.logging "1" PHP_INI_SYSTEM PHP_INI_ALL in PHP <= 5.2.0. Available since PHP 4.4.0.
fbsql.allow_persistent "1" PHP_INI_SYSTEM Available since PHP 4.2.0.
fbsql.autocommit "1" PHP_INI_SYSTEM Available since PHP 4.0.6.
fbsql.batchSize "1000" PHP_INI_SYSTEM Available since PHP 4.2.0. Removed in PHP 5.1.0.
fbsql.batchsize "1000" PHP_INI_ALL Available since PHP 5.1.0.
fbsql.default_database "" PHP_INI_SYSTEM Available since PHP 4.0.6.
fbsql.default_database_password "" PHP_INI_SYSTEM Available since PHP 4.0.6.
fbsql.default_host NULL PHP_INI_SYSTEM Available since PHP 4.0.6.
fbsql.default_password "" PHP_INI_SYSTEM Available since PHP 4.0.6.
fbsql.default_user "_SYSTEM" PHP_INI_SYSTEM Available since PHP 4.0.6.
fbsql.generate_warnings "0" PHP_INI_SYSTEM Available since PHP 4.0.6.
fbsql.max_connections "128" PHP_INI_SYSTEM Available since PHP 4.0.6.
fbsql.max_links "128" PHP_INI_SYSTEM Available since PHP 4.0.6.
fbsql.max_persistent "-1" PHP_INI_SYSTEM Available since PHP 4.0.6.
fbsql.max_results "128" PHP_INI_SYSTEM Available since PHP 4.0.6.
fbsql.show_timestamp_decimals "0" PHP_INI_SYSTEM Available since PHP 5.1.5.
file_uploads "1" PHP_INI_SYSTEM PHP_INI_ALL in PHP <= 4.2.3. Available since PHP 4.0.3.
filter.default "unsafe_raw" PHP_INI_PERDIR PHP_INI_ALL in filter <= 0.9.4. Available since PHP 5.2.0.
filter.default_flags NULL PHP_INI_PERDIR PHP_INI_ALL in filter <= 0.9.4. Available since PHP 5.2.0.
from "" PHP_INI_ALL  
gd.jpeg_ignore_warning "1" PHP_INI_ALL Available since PHP 5.1.3.
geoip.custom_directory NULL PHP_INI_ALL Available since geoip 1.0.1.
geoip.database_standard "GeoIP.dat" PHP_INI_ALL Removed in geoip 1.0.1.
hidef.ini_path (char*)default_ini_path PHP_INI_SYSTEM  
highlight.bg "#FFFFFF" PHP_INI_ALL Removed in PHP 5.4.0.
highlight.comment "#FF8000" PHP_INI_ALL  
highlight.default "#0000BB" PHP_INI_ALL  
highlight.html "#000000" PHP_INI_ALL  
highlight.keyword "#007700" PHP_INI_ALL  
highlight.string "#DD0000" PHP_INI_ALL  
html_errors "1" PHP_INI_ALL PHP_INI_SYSTEM in PHP <= 4.2.3. Available since PHP 4.0.2.
htscanner.config_file ".htaccess" PHP_INI_SYSTEM  
htscanner.default_docroot "/" PHP_INI_SYSTEM  
htscanner.default_ttl "300" PHP_INI_SYSTEM Available since htscanner 0.6.0.
htscanner.stop_on_error "0" PHP_INI_SYSTEM Available since htscanner 0.7.0.
http.allowed_methods "" PHP_INI_ALL Available since pecl_http 0.4.0. Removed in pecl_http 1.0.0.
http.allowed_methods_log "" PHP_INI_ALL Available since pecl_http 0.12.0. Removed in pecl_http 1.0.0.
http.cache_log "" PHP_INI_ALL Available since pecl_http 0.8.0. Removed in pecl_http 1.0.0.
http.composite_log "" PHP_INI_ALL Available since pecl_http 0.12.0. Removed in pecl_http 1.0.0.
http.etag.mode "MD5" PHP_INI_ALL Available since pecl_http 1.0.0.
http.etag_mode "MD5" PHP_INI_ALL Available since pecl_http 0.12.0. Removed in pecl_http 1.0.0.
http.force_exit "1" PHP_INI_ALL Available since pecl_http 0.18.0.
http.log.allowed_methods "" PHP_INI_ALL Available since pecl_http 1.0.0.
http.log.cache "" PHP_INI_ALL Available since pecl_http 1.0.0.
http.log.composite "" PHP_INI_ALL Available since pecl_http 1.0.0.
http.log.not_found "" PHP_INI_ALL Available since pecl_http 1.0.0.
http.log.redirect "" PHP_INI_ALL Available since pecl_http 1.0.0.
http.ob_deflate_auto "0" PHP_INI_PERDIR Available since pecl_http 0.21.0. Removed in pecl_http 1.0.0.
http.ob_deflate_flags "0" PHP_INI_ALL Available since pecl_http 0.21.0. Removed in pecl_http 1.0.0.
http.ob_inflate_auto "0" PHP_INI_PERDIR Available since pecl_http 0.21.0. Removed in pecl_http 1.0.0.
http.ob_inflate_flags "0" PHP_INI_ALL Available since pecl_http 0.21.0. Removed in pecl_http 1.0.0.
http.only_exceptions "0" PHP_INI_ALL Available since pecl_http 0.11.0.
http.persistent.handles.ident "GLOBAL" PHP_INI_ALL Available since pecl_http 1.5.0.
http.persistent.handles.limit "-1" PHP_INI_SYSTEM Available since pecl_http 1.5.0.
http.redirect_log "" PHP_INI_ALL Available since pecl_http 0.12.0. Removed in pecl_http 1.0.0.
http.request.datashare.connect "0" PHP_INI_SYSTEM Available since pecl_http 1.3.0.
http.request.datashare.cookie "0" PHP_INI_SYSTEM Available since pecl_http 1.3.0.
http.request.datashare.dns "1" PHP_INI_SYSTEM Available since pecl_http 1.3.0.
http.request.datashare.ssl "0" PHP_INI_SYSTEM Available since pecl_http 1.3.0.
http.request.methods.allowed "" PHP_INI_ALL Available since pecl_http 1.0.0.
http.request.methods.custom "" PHP_INI_PERDIR Available since pecl_http 1.0.0.
http.send.deflate.start_auto "0" PHP_INI_PERDIR Available since pecl_http 1.0.0.
http.send.deflate.start_flags "0" PHP_INI_ALL Available since pecl_http 1.0.0.
http.send.inflate.start_auto "0" PHP_INI_PERDIR Available since pecl_http 1.0.0.
http.send.inflate.start_flags "0" PHP_INI_ALL Available since pecl_http 1.0.0.
http.send.not_found_404 "1" PHP_INI_ALL Available since pecl_http 1.0.0.
ibase.allow_persistent "1" PHP_INI_SYSTEM  
ibase.dateformat "%Y-%m-%d" PHP_INI_ALL  
ibase.default_charset NULL PHP_INI_ALL Available since PHP 5.0.0.
ibase.default_db NULL PHP_INI_SYSTEM Available since PHP 5.0.0.
ibase.default_password NULL PHP_INI_ALL  
ibase.default_user NULL PHP_INI_ALL  
ibase.max_links "-1" PHP_INI_SYSTEM  
ibase.max_persistent "-1" PHP_INI_SYSTEM  
ibase.timeformat "%H:%M:%S" PHP_INI_ALL  
ibase.timestampformat "%Y-%m-%d %H:%M:%S" PHP_INI_ALL  
ibm_db2.binmode "1" PHP_INI_ALL  
ibm_db2.i5_all_pconnect "0" PHP_INI_SYSTEM Available since ibm_db2 1.6.5.
ibm_db2.i5_allow_commit "0" PHP_INI_SYSTEM Available since ibm_db2 1.4.9.
ibm_db2.i5_dbcs_alloc "0" PHP_INI_SYSTEM Available since ibm_db2 1.5.0.
ibm_db2.instance_name NULL PHP_INI_SYSTEM Available since ibm_db2 1.0.2.
ibm_db2.i5_ignore_userid "0" PHP_INI_SYSTEM Available since ibm_db2 1.8.0.
iconv.input_encoding "ISO-8859-1" PHP_INI_ALL Available since PHP 4.0.5.
iconv.internal_encoding "ISO-8859-1" PHP_INI_ALL Available since PHP 4.0.5.
iconv.output_encoding "ISO-8859-1" PHP_INI_ALL Available since PHP 4.0.5.
ifx.allow_persistent "1" PHP_INI_SYSTEM Removed in PHP 5.2.1.
ifx.blobinfile "1" PHP_INI_ALL Removed in PHP 5.2.1.
ifx.byteasvarchar "0" PHP_INI_ALL Removed in PHP 5.2.1.
ifx.charasvarchar "0" PHP_INI_ALL Removed in PHP 5.2.1.
ifx.default_host NULL PHP_INI_SYSTEM Removed in PHP 5.2.1.
ifx.default_password NULL PHP_INI_SYSTEM Removed in PHP 5.2.1.
ifx.default_user NULL PHP_INI_SYSTEM Removed in PHP 5.2.1.
ifx.max_links "-1" PHP_INI_SYSTEM Removed in PHP 5.2.1.
ifx.max_persistent "-1" PHP_INI_SYSTEM Removed in PHP 5.2.1.
ifx.nullformat "0" PHP_INI_ALL Removed in PHP 5.2.1.
ifx.textasvarchar "0" PHP_INI_ALL Removed in PHP 5.2.1.
ignore_repeated_errors "0" PHP_INI_ALL Available since PHP 4.3.0.
ignore_repeated_source "0" PHP_INI_ALL Available since PHP 4.3.0.
ignore_user_abort "0" PHP_INI_ALL  
imlib2.font_cache_max_size "524288" PHP_INI_ALL  
imlib2.font_path "/usr/share/php/fonts/" PHP_INI_ALL  
implicit_flush "0" PHP_INI_ALL PHP_INI_PERDIR in PHP <= 4.2.3.
include_path ".;/path/to/php/pear" PHP_INI_ALL  
intl.default_locale "" PHP_INI_ALL Available since PHP 5.3.0.
intl.error_level "0" PHP_INI_ALL Available since PHP 5.3.0.
intl.use_exceptions "0" PHP_INI_ALL Available since PHP 5.5.0.
ingres.allow_persistent "1" PHP_INI_SYSTEM Available since ingres 1.0.0
ingres.array_index_start "1" PHP_INI_ALL Available since ingres 1.4.0.
ingres.auto "1" PHP_INI_ALL Available since ingres 2.0.0.
ingres.blob_segment_length "4096" PHP_INI_ALL Available since ingres 1.2.0.
ingres.cursor_mode "0" PHP_INI_ALL Available since ingres 1.1.0.
ingres.default_database NULL PHP_INI_ALL Available since ingres 1.0.0
ingres.default_password NULL PHP_INI_ALL Available since ingres 1.0.0
ingres.default_user NULL PHP_INI_ALL Available since ingres 1.0.0
ingres.describe 1 PHP_INI_ALL Available since ingres 2.1.0
ingres.fetch_buffer_size 100 PHP_INI_ALL Available since ingres 2.1.0
ingres.max_links "-1" PHP_INI_SYSTEM Available since ingres 1.0.0
ingres.max_persistent "-1" PHP_INI_SYSTEM Available since ingres 1.0.0
ingres.reuse_connection "1" PHP_INI_ALL Available since ingres 2.0.0
ingres.scrollable "1" PHP_INI_ALL Available since ingres 2.0.0.
ingres.trace "0" PHP_INI_ALL Available since ingres 2.0.0.
ingres.trace_connect "0" PHP_INI_ALL Available since ingres 1.2.1.
ingres.utf8 "1" PHP_INI_ALL Available since ingres 2.0.0.
last_modified "0" PHP_INI_ALL Available since PHP 4.0.5.
ldap.max_links "-1" PHP_INI_SYSTEM  
log_errors "0" PHP_INI_ALL  
log_errors_max_len "1024" PHP_INI_ALL Available since PHP 4.3.0.
magic_quotes_gpc "1" PHP_INI_PERDIR PHP_INI_ALL in PHP <= 4.2.3. Deprecated in PHP 5.3.0. Removed in PHP 5.4.0.
magic_quotes_runtime "0" PHP_INI_ALL Removed in PHP 5.4.0.
magic_quotes_sybase "0" PHP_INI_ALL Removed in PHP 5.4.0.
mail.add_x_header "0" PHP_INI_PERDIR Available since PHP 5.3.0.
mail.force_extra_parameters NULL php.ini only Available since PHP 5.0.0.
mail.log "" PHP_INI_PERDIR Available since PHP 5.3.0 (PHP_INI_SYSTEM|PHP_INI_PERDIR)
maxdb.default_db NULL PHP_INI_ALL  
maxdb.default_host NULL PHP_INI_ALL  
maxdb.default_pw NULL PHP_INI_ALL  
maxdb.default_user NULL PHP_INI_ALL  
maxdb.long_readlen "200" PHP_INI_ALL  
max_execution_time "30" PHP_INI_ALL  
max_input_nesting_level "64" PHP_INI_PERDIR Available since PHP 4.4.8 and PHP 5.2.3.
max_input_vars 1000 PHP_INI_PERDIR Available since PHP 5.3.9.
max_input_time "-1" PHP_INI_PERDIR Available since PHP 4.3.0.
mbstring.detect_order NULL PHP_INI_ALL Available since PHP 4.0.6.
mbstring.encoding_translation "0" PHP_INI_PERDIR Available since PHP 4.3.0.
mbstring.func_overload "0" PHP_INI_SYSTEM PHP_INI_SYSTEM in PHP <= 4.2.3; PHP_INI_SYSTEM | PHP_INI_PERDIR from PHP 4.3 through 5.2.6. Available since PHP 4.2.0.
mbstring.http_input "pass" PHP_INI_ALL Available since PHP 4.0.6.
mbstring.http_output "pass" PHP_INI_ALL Available since PHP 4.0.6.
mbstring.internal_encoding NULL PHP_INI_ALL Available since PHP 4.0.6.
mbstring.language "neutral" PHP_INI_ALL Available since PHP 4.3.0.; PHP_INI_PERDIR in PHP <= 5.2.6
mbstring.script_encoding NULL PHP_INI_ALL Available since PHP 4.3.0. Removed in PHP 5.4.0. Use zend.script_encoding instead.
mbstring.http_output_conv_mimetypes "^(text/|application/xhtml\+xml)" PHP_INI_ALL Available since PHP 5.3.0.
mbstring.strict_detection "0" PHP_INI_ALL Available since PHP 5.1.2.
mbstring.substitute_character NULL PHP_INI_ALL Available since PHP 4.0.6.
mcrypt.algorithms_dir NULL PHP_INI_ALL Available since PHP 4.0.2.
mcrypt.modes_dir NULL PHP_INI_ALL Available since PHP 4.0.2.
memcache.allow_failover "1" PHP_INI_ALL Available since memcache 2.0.2.
memcache.chunk_size "8192" PHP_INI_ALL Available since memcache 2.0.2.
memcache.default_port "11211" PHP_INI_ALL Available since memcache 2.0.2.
memcache.hash_function "crc32" PHP_INI_ALL Available since memcache 2.2.0.
memcache.hash_strategy "standard" PHP_INI_ALL Available since memcache 2.2.0.
memcache.max_failover_attempts "20" PHP_INI_ALL Available since memcache 2.1.0.
memory_limit "128M" PHP_INI_ALL  
mime_magic.debug "0" PHP_INI_SYSTEM Available since PHP 5.0.0.
mime_magic.magicfile "/path/to/php/magic.mime" PHP_INI_SYSTEM Available since PHP 4.3.0.
mongo.allow_empty_keys 0 PHP_INI_ALL  
mongo.allow_persistent 1 PHP_INI_ALL Removed in 1.2.0
mongo.chunk_size 262144 PHP_INI_ALL  
mongo.cmd "$" PHP_INI_ALL  
mongo.default_host "localhost" PHP_INI_ALL  
mongo.default_port 27017 PHP_INI_ALL  
mongo.is_master_interval 15 PHP_INI_ALL Added in 1.2.10, before 1.3.0 the default value was 60.
mongo.long_as_object 0 PHP_INI_ALL  
mongo.native_long 1 PHP_INI_ALL Before 1.5.0, the default value was 0.
mongo.ping_interval 5 PHP_INI_ALL Added in 1.2.10
mongo.utf8 1 PHP_INI_ALL  
msql.allow_persistent "1" PHP_INI_ALL  
msql.max_links "-1" PHP_INI_ALL  
msql.max_persistent "-1" PHP_INI_ALL  
mssql.allow_persistent "1" PHP_INI_SYSTEM  
mssql.batchsize "0" PHP_INI_ALL Available since PHP 4.0.4.
mssql.charset "" PHP_INI_ALL Available since PHP 5.1.2.
mssql.compatability_mode "0" PHP_INI_ALL  
mssql.connect_timeout "5" PHP_INI_ALL  
mssql.datetimeconvert "1" PHP_INI_ALL Available since PHP 4.2.0.
mssql.max_links "-1" PHP_INI_SYSTEM  
mssql.max_persistent "-1" PHP_INI_SYSTEM  
mssql.max_procs "-1" PHP_INI_ALL Available since PHP 4.3.0.
mssql.min_error_severity "10" PHP_INI_ALL  
mssql.min_message_severity "10" PHP_INI_ALL  
mssql.secure_connection "0" PHP_INI_SYSTEM Available since PHP 4.3.0.
mssql.textlimit "-1" PHP_INI_ALL  
mssql.textsize "-1" PHP_INI_ALL  
mssql.timeout "60" PHP_INI_ALL Available since PHP 4.1.0.
mysql.allow_local_infile "1" PHP_INI_SYSTEM  
mysql.allow_persistent "1" PHP_INI_SYSTEM  
mysql.max_persistent "-1" PHP_INI_SYSTEM  
mysql.max_links "-1" PHP_INI_SYSTEM  
mysql.trace_mode "0" PHP_INI_ALL Available since PHP 4.3.0.
mysql.default_port NULL PHP_INI_ALL  
mysql.default_socket NULL PHP_INI_ALL Available since PHP 4.0.1.
mysql.default_host NULL PHP_INI_ALL  
mysql.default_user NULL PHP_INI_ALL  
mysql.default_password NULL PHP_INI_ALL  
mysql.connect_timeout "60" PHP_INI_ALL PHP_INI_SYSTEM in PHP <= 4.3.2. Available since PHP 4.3.0.
mysqli.allow_local_infile "1" PHP_INI_SYSTEM Available since PHP 5.2.4.
mysqli.allow_persistent "1" PHP_INI_SYSTEM Available since PHP 5.3.0.
mysqli.max_persistent "-1" PHP_INI_SYSTEM Available since PHP 5.3.0.
mysqli.max_links "-1" PHP_INI_SYSTEM Available since PHP 5.0.0.
mysqli.default_port "3306" PHP_INI_ALL Available since PHP 5.0.0.
mysqli.default_socket NULL PHP_INI_ALL Available since PHP 5.0.0.
mysqli.default_host NULL PHP_INI_ALL Available since PHP 5.0.0.
mysqli.default_user NULL PHP_INI_ALL Available since PHP 5.0.0.
mysqli.default_pw NULL PHP_INI_ALL Available since PHP 5.0.0.
mysqli.reconnect "0" PHP_INI_SYSTEM Available since PHP 4.3.5.
mysqli.rollback_on_cached_plink TRUE PHP_INI_SYSTEM Available since PHP 5.6.0.
mysqli.cache_size "2000" PHP_INI_SYSTEM Available since PHP 5.3.0.
mysqlnd.collect_memory_statistics "0" PHP_INI_SYSTEM Available since PHP 5.3.0.
mysqlnd.collect_statistics "1" PHP_INI_ALL Available since PHP 5.3.0.
mysqlnd.debug "" PHP_INI_SYSTEM Available since PHP 5.3.0.
mysqlnd.log_mask "0" PHP_INI_ALL Available since PHP 5.4.0.
mysqlnd.mempool_default_size "16000" PHP_INI_ALL Available since PHP 5.4.0.
mysqlnd.net_cmd_buffer_size "4096" PHP_INI_ALL Available since PHP 5.4.0.
mysqlnd.net_read_buffer_size "32768" PHP_INI_ALL Available since PHP 5.3.0.
mysqlnd.net_read_timeout "31536000" PHP_INI_SYSTEM Available since PHP 5.4.0.
mysqlnd.sha256_server_public_key "" PHP_INI_PERDIR Available since PHP 5.5.0.
mysqlnd.trace_alloc "" PHP_INI_SYSTEM Available since PHP 5.5.0.
mysqlnd_memcache.enable 1 PHP_INI_SYSTEM Available since 1.0.0
mysqlnd_ms.enable 0 PHP_INI_SYSTEM
mysqlnd_ms.force_config_usage 0 PHP_INI_SYSTEM
mysqlnd_ms.ini_file "" PHP_INI_SYSTEM
mysqlnd_ms.config_file "" PHP_INI_SYSTEM
mysqlnd_ms.collect_statistics 0 PHP_INI_SYSTEM
mysqlnd_ms.multi_master 0 PHP_INI_SYSTEM
mysqlnd_ms.disable_rw_split 0 PHP_INI_SYSTEM
mysqlnd_mux.enable 0 PHP_INI_SYSTEM
mysqlnd_qc.enable_qc 1 PHP_INI_SYSTEM
mysqlnd_qc.ttl 30 PHP_INI_ALL
mysqlnd_qc.cache_by_default 0 PHP_INI_ALL
mysqlnd_qc.cache_no_table 0 PHP_INI_ALL
mysqlnd_qc.use_request_time 0 PHP_INI_ALL
mysqlnd_qc.time_statistics 1 PHP_INI_ALL
mysqlnd_qc.collect_statistics 0 PHP_INI_ALL
mysqlnd_qc.collect_statistics_log_file /tmp/mysqlnd_qc.stats PHP_INI_SYSTEM
mysqlnd_qc.collect_query_trace 0 PHP_INI_SYSTEM
mysqlnd_qc.query_trace_bt_depth 3 PHP_INI_SYSTEM
mysqlnd_qc.collect_normalized_query_trace 0 PHP_INI_SYSTEM
mysqlnd_qc.ignore_sql_comments 1 PHP_INI_ALL
mysqlnd_qc.slam_defense 0 PHP_INI_SYSTEM
mysqlnd_qc.slam_defense_ttl 30 PHP_INI_SYSTEM
mysqlnd_qc.std_data_copy 0 PHP_INI_SYSTEM
mysqlnd_qc.apc_prefix qc_ PHP_INI_ALL
mysqlnd_qc.memc_server 127.0.0.1 PHP_INI_ALL
mysqlnd_qc.memc_port 11211 PHP_INI_ALL
mysqlnd_qc.sqlite_data_file :memory: PHP_INI_ALL
mysqlnd_uh.enable 1 PHP_INI_SYSTEM
mysqlnd_uh.report_wrong_types 1 PHP_INI_ALL
nsapi.read_timeout "60" PHP_INI_ALL Available since PHP 4.3.3.
oci8.connection_class "" PHP_INI_ALL Available since PHP 5.3 (PECL OCI8 1.3).
oci8.default_prefetch "10" PHP_INI_SYSTEM Available since PHP 5.1.2.
oci8.events Off PHP_INI_SYSTEM Available since PHP 5.3 (PECL OCI8 1.3).
oci8.max_persistent "-1" PHP_INI_SYSTEM Available since PHP 5.1.2.
oci8.old_oci_close_semantics "0" PHP_INI_SYSTEM Available since PHP 5.1.2.
oci8.persistent_timeout "-1" PHP_INI_SYSTEM Available since PHP 5.1.2.
oci8.ping_interval "60" PHP_INI_SYSTEM Available since PHP 5.1.2.
oci8.privileged_connect "0" PHP_INI_SYSTEM Available since PHP 5.1.2.
oci8.statement_cache_size "20" PHP_INI_SYSTEM Available since PHP 5.1.2.
odbc.allow_persistent "1" PHP_INI_SYSTEM  
odbc.check_persistent "1" PHP_INI_SYSTEM  
odbc.defaultbinmode "1" PHP_INI_ALL  
odbc.defaultlrl "4096" PHP_INI_ALL  
odbc.default_db NULL PHP_INI_ALL  
odbc.default_cursortype "3" PHP_INI_ALL Available since PHP 5.3.0.
odbc.default_pw NULL PHP_INI_ALL  
odbc.default_user NULL PHP_INI_ALL  
odbc.max_links "-1" PHP_INI_SYSTEM  
odbc.max_persistent "-1" PHP_INI_SYSTEM  
odbtp.datetime_format "object" PHP_INI_ALL  
odbtp.detach_default_queries "0" PHP_INI_ALL  
odbtp.guid_format "string" PHP_INI_ALL Available since odbtp 1.1.3.
odbtp.interface_file "/usr/local/share/odbtp.conf" PHP_INI_ALL  
odbtp.truncation_errors "1" PHP_INI_ALL  
opendirectory.default_separator "/" PHP_INI_ALL Removed in opendirectory 0.2.2.
opendirectory.max_refs "-1" PHP_INI_ALL  
opendirectory.separator "/" PHP_INI_ALL Available since opendirectory 0.2.2.
open_basedir NULL PHP_INI_ALL PHP_INI_SYSTEM in PHP < 5.2.3.
oracle.allow_persistent "-1" PHP_INI_ALL Removed in PHP 5.1.0.
oracle.max_links "-1" PHP_INI_ALL Removed in PHP 5.1.0.
oracle.max_persistent "-1" PHP_INI_ALL Removed in PHP 5.1.0.
output_buffering "0" PHP_INI_PERDIR  
output_handler NULL PHP_INI_PERDIR Available since PHP 4.0.4.
pam.servicename "php" PHP_INI_ALL  
pcre.backtrack_limit "1000000" PHP_INI_ALL Available since PHP 5.2.0.
pcre.recursion_limit "100000" PHP_INI_ALL Available since PHP 5.2.0.
pcre.jit "1" PHP_INI_ALL Available since PHP 7.0.0.
pdo.dsn.*   php.ini only Available since PHP 5.1.0.
pdo_odbc.connection_pooling "strict" PHP_INI_ALL Available since PHP 5.1.0.
pdo_odbc.db2_instance_name NULL PHP_INI_SYSTEM Available since PHP 5.1.1. This deprecated feature will certainly be removed in the future.
pfpro.defaulthost "test-payflow.verisign.com" PHP_INI_ALL Available since PHP 4.0.2. Removed in PHP 5.1.0.
pfpro.defaultport "443" PHP_INI_ALL Available since PHP 4.0.2. Removed in PHP 5.1.0.
pfpro.defaulttimeout "30" PHP_INI_ALL Available since PHP 4.0.2. Removed in PHP 5.1.0.
pfpro.proxyaddress "" PHP_INI_ALL Available since PHP 4.0.2. Removed in PHP 5.1.0.
pfpro.proxylogon "" PHP_INI_ALL Available since PHP 4.0.2. Removed in PHP 5.1.0.
pfpro.proxypassword "" PHP_INI_ALL Available since PHP 4.0.2. Removed in PHP 5.1.0.
pfpro.proxyport "" PHP_INI_ALL Available since PHP 4.0.2. Removed in PHP 5.1.0.
pgsql.allow_persistent "1" PHP_INI_SYSTEM  
pgsql.auto_reset_persistent "0" PHP_INI_SYSTEM Available since PHP 4.2.0.
pgsql.ignore_notice "0" PHP_INI_ALL Available since PHP 4.3.0.
pgsql.log_notice "0" PHP_INI_ALL Available since PHP 4.3.0.
pgsql.max_links "-1" PHP_INI_SYSTEM  
pgsql.max_persistent "-1" PHP_INI_SYSTEM  
phar.cache_list "" PHP_INI_SYSTEM Available since PHP 5.4.0.
phar.extract_list "" PHP_INI_ALL Available since phar 1.1.0.
phar.readonly "1" PHP_INI_ALL  
phar.require_hash "1" PHP_INI_ALL  
post_max_size "8M" PHP_INI_PERDIR PHP_INI_SYSTEM in PHP <= 4.2.3. Available since PHP 4.0.3.
precision "14" PHP_INI_ALL  
python.append_path "" PHP_INI_ALL  
python.prepend_path "." PHP_INI_ALL  
realpath_cache_size "16K" PHP_INI_SYSTEM Available since PHP 5.1.0.
realpath_cache_ttl "120" PHP_INI_SYSTEM Available since PHP 5.1.0.
register_argc_argv "1" PHP_INI_PERDIR PHP_INI_ALL in PHP <= 4.2.3.
register_globals "0" PHP_INI_PERDIR PHP_INI_ALL in PHP <= 4.2.3. Deprecated in PHP 5.3.0. Removed in PHP 5.4.0.
register_long_arrays "1" PHP_INI_PERDIR Available since PHP 5.0.0. Deprecated in PHP 5.3.0. Removed in PHP 5.4.0.
report_memleaks "1" PHP_INI_ALL Available since PHP 4.3.0.
report_zend_debug "1" PHP_INI_ALL Available since PHP 5.0.0.
request_order "" PHP_INI_PERDIR Added in PHP 5.3.0
runkit.internal_override "0" PHP_INI_SYSTEM  
runkit.superglobal "" PHP_INI_PERDIR  
safe_mode "0" PHP_INI_SYSTEM Removed in PHP 5.4.0.
safe_mode_allowed_env_vars "PHP_" PHP_INI_SYSTEM Removed in PHP 5.4.0.
safe_mode_exec_dir "" PHP_INI_SYSTEM Removed in PHP 5.4.0.
safe_mode_gid "0" PHP_INI_SYSTEM Available since PHP 4.1.0. Removed in PHP 5.4.0.
safe_mode_include_dir NULL PHP_INI_SYSTEM Available since PHP 4.1.0. Removed in PHP 5.4.0.
safe_mode_protected_env_vars "LD_LIBRARY_PATH" PHP_INI_SYSTEM Removed in PHP 5.4.0.
sendmail_from NULL PHP_INI_ALL  
sendmail_path "/usr/sbin/sendmail -t -i" PHP_INI_SYSTEM  
serialize_precision "-1" PHP_INI_ALL Available since PHP 4.3.2. Until PHP 5.3.5, the default value was 100. Until PHP 7.1.0, the default value was 17.
session.auto_start "0" PHP_INI_PERDIR PHP_INI_ALL in PHP <= 5.4.19 and in PHP <= 5.5.1.
session.bug_compat_42 "1" PHP_INI_ALL Available since PHP 4.3.0. Removed in PHP 5.4.0.
session.bug_compat_warn "1" PHP_INI_ALL Available since PHP 4.3.0. Removed in PHP 5.4.0.
session.cache_expire "180" PHP_INI_ALL  
session.cache_limiter "nocache" PHP_INI_ALL  
session.cookie_domain "" PHP_INI_ALL  
session.cookie_httponly "" PHP_INI_ALL Available since PHP 5.2.0.
session.cookie_lifetime "0" PHP_INI_ALL  
session.cookie_path "/" PHP_INI_ALL  
session.cookie_secure "" PHP_INI_ALL Available since PHP 4.0.4.
session.entropy_file "" PHP_INI_ALL Removed in PHP 7.1.0.
session.entropy_length "0" PHP_INI_ALL Removed in PHP 7.1.0.
session.gc_divisor "100" PHP_INI_ALL Available since PHP 4.3.2.
session.gc_maxlifetime "1440" PHP_INI_ALL  
session.gc_probability "1" PHP_INI_ALL  
session.sid_bits_per_character "32" PHP_INI_ALL Available since PHP 7.1.0.
session.hash_bits_per_character "5" PHP_INI_ALL Removed in PHP 7.1.0.
session.hash_function "0" PHP_INI_ALL Available since PHP 5.0.0.
session.lazy_write "1" PHP_INI_ALL Available since PHP 7.0.0.
session.name "PHPSESSID" PHP_INI_ALL  
session.referer_check "" PHP_INI_ALL  
session.save_handler "files" PHP_INI_ALL  
session.save_path "" PHP_INI_ALL  
session.serialize_handler "php" PHP_INI_ALL  
session.upload_progress.cleanup "1" PHP_INI_PERDIR Available since PHP 5.4.0.
session.upload_progress.enabled "1" PHP_INI_PERDIR Available since PHP 5.4.0.
session.upload_progress.freq "1%" PHP_INI_PERDIR Available since PHP 5.4.0.
session.upload_progress.min_freq "1" PHP_INI_PERDIR Available since PHP 5.4.0.
session.upload_progress.name "PHP_SESSION_UPLOAD_PROGRESS" PHP_INI_PERDIR Available since PHP 5.4.0.
session.upload_progress.prefix "upload_progress_" PHP_INI_PERDIR Available since PHP 5.4.0.
session.use_strict_mode "0" PHP_INI_ALL Available since PHP 5.5.2.
session.use_cookies "1" PHP_INI_ALL  
session.use_only_cookies "1" PHP_INI_ALL Available since PHP 4.3.0.
session.use_trans_sid "0" PHP_INI_ALL PHP_INI_ALL in PHP <= 4.2.3. PHP_INI_PERDIR in PHP < 5. Available since PHP 4.0.3.
session_pgsql.create_table "1" PHP_INI_SYSTEM  
session_pgsql.db "host=localhost dbname=php_session user=nobody" PHP_INI_SYSTEM  
session_pgsql.disable "0" PHP_INI_SYSTEM  
session_pgsql.failover_mode "0" PHP_INI_SYSTEM  
session_pgsql.gc_interval "3600" PHP_INI_SYSTEM  
session_pgsql.keep_expired "0" PHP_INI_SYSTEM  
session_pgsql.sem_file_name "/tmp/php_session_pgsql" PHP_INI_SYSTEM  
session_pgsql.serializable "0" PHP_INI_SYSTEM  
session_pgsql.short_circuit "0" PHP_INI_SYSTEM  
session_pgsql.use_app_vars "0" PHP_INI_SYSTEM  
session_pgsql.vacuum_interval "21600" PHP_INI_SYSTEM  
short_open_tag "1" PHP_INI_PERDIR PHP_INI_ALL in PHP 4.0.0. PHP_INI_PERDIR in PHP >= 4.0.1.
SMTP "localhost" PHP_INI_ALL  
smtp_port "25" PHP_INI_ALL Available since PHP 4.3.0.
soap.wsdl_cache "1" PHP_INI_ALL Available since PHP 5.1.5.
soap.wsdl_cache_dir "/tmp" PHP_INI_ALL Available since PHP 5.0.0.
soap.wsdl_cache_enabled "1" PHP_INI_ALL Available since PHP 5.0.0.
soap.wsdl_cache_limit "5" PHP_INI_ALL Available since PHP 5.1.5.
soap.wsdl_cache_ttl "86400" PHP_INI_ALL Available since PHP 5.0.0.
sql.safe_mode "0" PHP_INI_SYSTEM  
sqlite.assoc_case "0" PHP_INI_ALL Available since PHP 5.0.0.
sqlite3.extension_dir "" PHP_INI_SYSTEM Available since PHP 5.3.11.
sybase.allow_persistent "1" PHP_INI_ALL PHP_INI_ALL in PHP <= 4.0.2. PHP_INI_SYSTEM in PHP <= 4.0.3.
sybase.interface_file "" PHP_INI_ALL  
sybase.max_links "-1" PHP_INI_ALL PHP_INI_ALL in PHP <= 4.0.2. PHP_INI_SYSTEM in PHP <= 4.0.3.
sybase.max_persistent "-1" PHP_INI_ALL PHP_INI_ALL in PHP <= 4.0.2. PHP_INI_SYSTEM in PHP <= 4.0.3.
sybase.min_error_severity "10" PHP_INI_ALL  
sybase.min_message_severity "10" PHP_INI_ALL  
sybct.deadlock_retry_count "0" PHP_INI_ALL Available since PHP 4.3.0.
sybct.login_timeout "-1" PHP_INI_ALL Available since PHP 4.0.2.
sybct.packet_size "0" PHP_INI_ALL Available since PHP 4.3.5.
sybct.timeout "0" PHP_INI_ALL Available since PHP 4.0.2.
sys_temp_dir "" PHP_INI_SYSTEM Available since PHP 5.5.0.
sysvshm.init_mem "10000" PHP_INI_ALL  
tidy.clean_output "0" PHP_INI_USER PHP_INI_PERDIR in PHP 5. Available since PHP 5.0.0.
tidy.default_config "" PHP_INI_SYSTEM Available since PHP 5.0.0.
track_errors "0" PHP_INI_ALL  
unserialize_callback_func NULL PHP_INI_ALL Available since PHP 4.2.0.
uploadprogress.file.filename_template "/tmp/upt_%s.txt" PHP_INI_ALL  
upload_max_filesize "2M" PHP_INI_PERDIR PHP_INI_ALL in PHP <= 4.2.3.
max_file_uploads 20 PHP_INI_SYSTEM Available since PHP 5.2.12.
upload_tmp_dir NULL PHP_INI_SYSTEM  
url_rewriter.tags "a=href,area=href,frame=src,form=,fieldset=" PHP_INI_ALL Available since PHP 4.0.4.
user_agent NULL PHP_INI_ALL Available since PHP 4.3.0.
user_dir NULL PHP_INI_SYSTEM  
user_ini.cache_ttl "300" PHP_INI_SYSTEM Available since PHP 5.3.0.
user_ini.filename ".user.ini" PHP_INI_SYSTEM Available since PHP 5.3.0.
valkyrie.auto_validate "0" PHP_INI_ALL  
valkyrie.config_path NULL PHP_INI_ALL  
variables_order "EGPCS" PHP_INI_PERDIR PHP_INI_ALL in PHP <= 5.0.5.
vld.active "0" PHP_INI_SYSTEM  
vld.execute "1" PHP_INI_SYSTEM Available since vld 0.8.0.
vld.skip_append "0" PHP_INI_SYSTEM Available since vld 0.8.0.
vld.skip_prepend "0" PHP_INI_SYSTEM Available since vld 0.8.0.
windows.show_crt_warning "0" PHP_INI_ALL Available since PHP 5.4.0.
xbithack "0" PHP_INI_ALL Available since PHP 4.0.5.
xdebug.auto_profile "0" PHP_INI_ALL Removed in Xdebug 2.0.0.
xdebug.auto_profile_mode "0" PHP_INI_ALL Removed in Xdebug 2.0.0.
xdebug.auto_trace "0" PHP_INI_ALL  
xdebug.collect_includes "1" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.collect_params "0" PHP_INI_ALL  
xdebug.collect_return "0" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.collect_vars "0" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.default_enable "1" PHP_INI_ALL PHP_INI_SYSTEM in Xdebug 1.
xdebug.dump.COOKIE NULL PHP_INI_ALL  
xdebug.dump.ENV NULL PHP_INI_ALL  
xdebug.dump.FILES NULL PHP_INI_ALL  
xdebug.dump.GET NULL PHP_INI_ALL  
xdebug.dump.POST NULL PHP_INI_ALL  
xdebug.dump.REQUEST NULL PHP_INI_ALL  
xdebug.dump.SERVER NULL PHP_INI_ALL  
xdebug.dump.SESSION NULL PHP_INI_ALL  
xdebug.dump_globals "1" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.dump_once "1" PHP_INI_ALL  
xdebug.dump_undefined "0" PHP_INI_ALL  
xdebug.extended_info "1" PHP_INI_SYSTEM Available since Xdebug 2.0.0.
xdebug.idekey "" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.manual_url "http://www.php.net" PHP_INI_ALL  
xdebug.max_nesting_level "100" PHP_INI_ALL  
xdebug.output_dir "/tmp" PHP_INI_PERDIR PHP_INI_SYSTEM in Xdebug <= 1.2.0. Removed in Xdebug 2.0.0.
xdebug.profiler_aggregate "0" PHP_INI_PERDIR Available since Xdebug 2.0.0.
xdebug.profiler_append "0" PHP_INI_PERDIR Available since Xdebug 2.0.0.
xdebug.profiler_enable "0" PHP_INI_PERDIR Available since Xdebug 2.0.0.
xdebug.profiler_enable_trigger "0" PHP_INI_PERDIR Available since Xdebug 2.0.0.
xdebug.profiler_output_dir "/tmp" PHP_INI_PERDIR Available since Xdebug 2.0.0.
xdebug.profiler_output_name "cachegrind.out.%p" PHP_INI_PERDIR Available since Xdebug 2.0.0.
xdebug.remote_autostart "0" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.remote_enable "0" PHP_INI_PERDIR  
xdebug.remote_handler "dbgp" PHP_INI_ALL  
xdebug.remote_host "localhost" PHP_INI_ALL  
xdebug.remote_log "" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.remote_mode "req" PHP_INI_ALL  
xdebug.remote_port "9000" PHP_INI_ALL  
xdebug.show_exception_trace "0" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.show_local_vars "0" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.show_mem_delta "0" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.trace_format "0" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.trace_options "0" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.trace_output_dir "/tmp" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.trace_output_name "trace.%c" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.var_display_max_children "128" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.var_display_max_data "512" PHP_INI_ALL Available since Xdebug 2.0.0.
xdebug.var_display_max_depth "3" PHP_INI_ALL Available since Xdebug 2.0.0.
xmlrpc_errors "0" PHP_INI_SYSTEM Available since PHP 4.1.0.
xmlrpc_error_number "0" PHP_INI_ALL Available since PHP 4.1.0.
xmms.path "/usr/bin/xmms" PHP_INI_ALL  
xmms.session "0" PHP_INI_ALL  
xsl.security_prefs "44" PHP_INI_ALL Available since PHP 5.5.0.
y2k_compliance "1" PHP_INI_ALL Removed in PHP 5.4.0.
yami.response.timeout "5" PHP_INI_ALL Available since yami 1.0.1.
yaz.keepalive "120" PHP_INI_ALL  
yaz.log_mask NULL PHP_INI_ALL Available since yaz 1.0.3.
zend.assertions "1" PHP_INI_ALL Available since PHP 7.0.0.
zend.detect_unicode "1" PHP_INI_ALL Available since PHP 5.4.0.
zend.enable_gc "1" PHP_INI_ALL Available since PHP 5.3.0.
zend.multibyte "0" PHP_INI_PERDIR Available since PHP 5.4.0.
zend.script_encoding NULL PHP_INI_ALL Available since PHP 5.4.0
zend.signal_check "0" PHP_INI_SYSTEM Available since PHP 5.4.0
zend.ze1_compatibility_mode "0" PHP_INI_ALL Available since PHP 5.0.0. Removed in PHP 5.3.0.
zend_extension NULL php.ini only  
zend_extension_debug NULL php.ini only  
zend_extension_debug_ts NULL php.ini only  
zend_extension_ts NULL php.ini only  
zlib.output_compression "0" PHP_INI_ALL Available since PHP 4.0.5.
zlib.output_compression_level "-1" PHP_INI_ALL Available since PHP 4.3.0.
zlib.output_handler "" PHP_INI_ALL Available since PHP 4.3.0.