PHP strspn() Function
Definition
The strspn() function returns the number of characters found in the string that contains only characters from the charlist parameter.
Syntax
PHP strspn() Function has the following syntax.
strspn(string,charlist,start,length)Parameter
| Parameter | Is Required | Description |
|---|---|---|
| string | Required. | String to search |
| charlist | Required. | Characters to find |
| start | Optional. | Where in the string to start |
| length | Optional. | Length of the string |
Return
PHP strspn() Function returns the number of characters found in the string that contains only characters from the charlist parameter.
Example
Return the number of characters found in the string "Hello world!" that contains the characters "Java2s.com":
<?php
echo strspn("Hello world from java2s.com!","Java2s.com");
?>
Return the number of characters found in the string "abcdefand" that contains the characters "abc":
<?php
echo strspn("abcdefand","abc");
?>