» google_pagerank()
  » preg_replace()
  » htmlentities()
  » imagecreatefrompng()
  » site_pageranks()
  » imagepng()
  » imagestring()
  » imagedestroy()
  » header()
  » imagecolorallocate()
  » preg_match()
  » session_start()
  » getimagesize()
  » urlencode()
  » ob_start()
  » flush()
  » strpos()
  » str_replace()
  » htmlspecialchars()
  » array2vars()
  » fopen()
  » nl2br()
  » preg_match_all()
  » setcookie()
  » strstr()
  » ob_flush()
  » ereg()
  » preg_split()
  » ereg_replace()
  » var_dump()

 » Weblog Community
 » Listen to Podcasts
 » Rock Music Community - meet fans

Become a sponsor for $15/month. Link is sitewide - PR5 homepage, 20+ PR4 pages, 90+ PR3 pages. Email Tabpole[AT]Gmail[DOT]com.

(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.

Example 1. stristr() example

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

Example 2. Testing if a string is found or not

<?php
  $string = 'Hello World!';
  if(stristr($string, 'earth') === FALSE) {
    echo '"earth" not found in string';
  }
// outputs: "earth" not found in string
?>

Example 3. Using a non "string" needle

<?php
  $string = 'APPLE';
  echo stristr($string, 97); // 97 = lowercase a
// outputs: APPLE
?>

Related Function(s)

strstr()

strrchr()

substr()

ereg()