String Funkcje
PHP Manual

strstr

(PHP 4, PHP 5)

strstrFind the first occurrence of a string

Opis

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

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

Informacja:

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

Informacja:

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

Parametry

haystack

The input string.

needle

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

before_needle

If TRUE, strstr() returns the part of the haystack before the first occurrence of the needle (excluding the needle).

Zwracane wartości

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

Rejestr zmian

Wersja Opis
5.3.0 Added the optional parameter before_needle.
4.3.0 strstr() was made binary safe.

Przykłady

Przykład #1 strstr() 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
?>

Zobacz też:


String Funkcje
PHP Manual