note 46733 deleted from function.strstr by betz
| From: | betz@php.net | Date: | Wed, 03 Nov 2004 16:39:16 +0000 |
| Subject: | note 46733 deleted from function.strstr by betz | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-79554@lists.php.net to get a copy of this message | ||
Note Submitter:
----
vincents in_str function will work most of the time, but will fail under circumstances, most notably
when working with string '0' (zero)
consider this:
<?php
$needle = '0';
$haystack = '1234567890';
if (in_str($haystack, $needle)) {
echo "The haystack contains $needle";
}
?>
you can clearly see that string 0 is definately in haystack, but the function will return false.
a faster, and failproof way would be
<?php
if (false !== strpos($haystack, $needle) {
// we found it
}
// case insesnitive version
if (false !== stripos($haystack, $needle) {
// we found it, case insesitive.
}
?>
this is written on the strpos() page
http://php.net/strpos
and mentioned on the strstr() page
http://php.net/strstr