strstr(3) [php man page]

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)

STRRIPOS(3)								 1							       STRRIPOS(3)

strripos - Find the position of the last occurrence of a case-insensitive substring in a string

SYNOPSIS

       int strripos (string  $haystack, string	$needle, [int  $offset])

DESCRIPTION

	Find the numeric position of the last occurrence of $needle in the $haystack string.

	Unlike the strrpos(3), strripos(3) is case-insensitive.

PARAMETERS

	      o $haystack
		- The string to search in.

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

	      o $offset
		-  If  specified,  search will start this number of characters counted from the beginning of the string. If the value is negative,
		search will instead start from that many characters from the end of the string, searching backwards.

RETURN VALUES

	Returns the position where the needle exists relative to the beginnning of the $haystack string (independent of search direction  or  off-
       set). Also note that string positions start at 0, and not 1.

	Returns FALSE if the needle was not found.

       Warning

	      This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on
	      Booleans for more information. Use the === operator for testing the return value of this function.

EXAMPLES

       Example #1

	      A simple strripos(3) example

	      <?php
	      $haystack = 'ababcd';
	      $needle	= 'aB';

	      $pos	= strripos($haystack, $needle);

	      if ($pos === false) {
		  echo "Sorry, we did not find ($needle) in ($haystack)";
	      } else {
		  echo "Congratulations!
";
		  echo "We found the last ($needle) in ($haystack) at position ($pos)";
	      }
	      ?>

	      The above example will output:

	      Congratulations!
		 We found the last (aB) in (ababcd) at position (2)

SEE ALSO

       strpos(3), stripos(3), strrpos(3), strrchr(3), stristr(3), substr(3).

PHP Documentation Group 													       STRRIPOS(3)