php man page for strstr

STRSTR(3)								 1								 STRSTR(3)

strstr - Find the first occurrence of a string

SYNOPSIS
       string strstr (string  $haystack, mixed	$needle, [bool	$before_needle = false])

DESCRIPTION
	Returns part of $haystack string starting from and including the first occurrence of $needle to the end of $haystack.

       Note

	       This function is case-sensitive. For case-insensitive searches, use stristr(3).

       Note

	       If  you	only  want to determine if a particular $needle occurs within $haystack, use the faster and less memory intensive function
	      strpos(3) instead.

PARAMETERS
	      o $haystack
		- The input string.

	      o $needle
		- If $needle is not a string, it is converted to an integer and applied as the ordinal value of a character.

	      o $before_needle
		- If TRUE, strstr(3) returns the part of the $haystack before the first occurrence of the $needle (excluding the needle).

RETURN VALUES
	Returns the portion of string, or FALSE if $needle is not found.

CHANGELOG
       +--------+-----------------------------------------------+
       |Version |						|
       |	|						|
       |	|		   Description			|
       |	|						|
       +--------+-----------------------------------------------+
       | 5.3.0	|						|
       |	|						|
       |	|  Added the optional parameter $before_needle. |
       |	|						|
       | 4.3.0	|						|
       |	|						|
       |	|	 strstr(3) was made binary safe.	|
       |	|						|
       +--------+-----------------------------------------------+
EXAMPLES
       Example #1

	      strstr(3) example

	      <?php
	      $email  = 'name@example.com';
	      $domain = strstr($email, '@');
	      echo $domain; // prints @example.com

	      $user = strstr($email, '@', true); // As of PHP 5.3.0
	      echo $user; // prints name
	      ?>

SEE ALSO
       stristr(3), strrchr(3), strpos(3), strpbrk(3), preg_match(3).

PHP Documentation Group 														 STRSTR(3)