String Funcții
PHP Manual

strstr

(PHP 4, PHP 5)

strstrFind the first occurrence of a string

Descrierea

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.

Notă:

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

Notă:

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

Parametri

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).

Valorile întoarse

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

Istoria schimbărilor

Versiunea Descriere
5.3.0 Added the optional parameter before_needle.
4.3.0 strstr() was made binary safe.

Exemple

Example #1 strstr() example

<?php
$email  
'[email protected]';
$domain strstr($email'@');
echo 
$domain// prints @example.com

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

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String Funcții
PHP Manual