md5
Calculate the md5 hash of a string
Warning
It is not recommended to use this function to secure passwords,
due to the fast nature of this hashing algorithm. See the
Password Hashing FAQ
for details and best practices.
Description
string md5
( string $str
[, bool $raw_output = false
] )
Parameters
-
str
-
The string.
-
raw_output
-
If the optional raw_output is set to TRUE,
then the md5 digest is instead returned in raw binary format with a
length of 16.
Return Values
Returns the hash as a 32-character hexadecimal number.
Examples
Example #1 A md5 example
<?php
$str = 'apple';
if (md5($str) === '1f3870be274f6c49b3e31a0c6728957f') {
echo "Would you like a green or red apple?";
}
?>
See Also
- md5_file
- sha1_file
- crc32
- sha1
- hash
- crypt
- password_hash