stristr() function in PHP

stristr() function is used to search for the first occurrence of a string in another string.

Note - This function is not case sensitive

Syntax

stristr(str, search, before_search)

Parameters

• str - The string to search for

• search - The string to search for

• before_search - a boolean value, default value is "false". If set to "true", returns the portion of the string preceding the first occurrence of the search parameter.

Return

The stristr() function returns the matching substring.

Example

The following is an example-

Real-time demonstration

<?php
$mystr = &#39;Tom Hanks!&#39;;
if(stristr($mystr, &#39;Tim&#39;) === FALSE) {
   echo &#39;Tim is not in the string!&#39;;
}
?>

Output

Tim is not in the string!

Example

The following is an example -

Live demonstration

<?php
echo stristr("Demo text!","TEXT",true);
?>

Output

Demo

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