stristr

(PHP 3>= 3.0.6, PHP 4 , PHP 5)

stristr --  Case-insensitive strstr()

Description

string stristr ( string haystack, string needle)

Returns all of haystack from the first occurrence of needle to the end. needle and haystack are examined in a case-insensitive manner.

If needle is not found, returns FALSE.

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

例子 1. stristr() example

<?php
  $email
= 'USER@EXAMPLE.com';
  
$domain = stristr($email, 'e');
  echo
$domain;
// outputs ER@EXAMPLE.com
?>

See also strstr(), strrchr(), substr(), and ereg().