ereg
Regular expression match
Warning
This function was DEPRECATED in PHP 5.3.0, and
REMOVED in PHP 7.0.0.
Alternatives to this function include:
Description
int ereg
( string $pattern
, string $string
[, array &$regs
] )
Searches a string for matches to the regular
expression given in pattern in a case-sensitive
way.
Parameters
-
pattern
-
Case sensitive regular expression.
-
string
-
The input string.
-
regs
-
If matches are found for parenthesized substrings of
pattern and the function is called with the
third argument regs, the matches will be stored
in the elements of the array regs.
$regs[1] will contain the substring which starts at
the first left parenthesis; $regs[2] will contain
the substring starting at the second, and so on.
$regs[0] will contain a copy of the complete string
matched.
Return Values
Returns the length of the matched string if a match for
pattern was found in string,
or FALSE if no matches were found or an error occurred.
If the optional parameter regs was not passed or
the length of the matched string is 0, this function returns 1.
Examples
Example #1 ereg example
The following code snippet takes a date in ISO format (YYYY-MM-DD) and
prints it in DD.MM.YYYY format:
<?php
if (ereg ("([0-9]{4})-([0-9]{1,2})-([0-9]{1,2})", $date, $regs)) {
echo "$regs[3].$regs[2].$regs[1]";
} else {
echo "Invalid date format: $date";
}
?>
See Also
- eregi
- ereg_replace
- eregi_replace
- preg_match
- strpos
- strstr
- quotemeta