PHP strspn() Function
Example
Return the number of characters contained in the string "Hello world!":
<?php
echo strspn("Hello world!","kHlleo");
?>
Definition and Usage
The strspn() function returns the number of characters contained in the string: charlist The number of characters specified in the parameter.
Tip:Please use strcspn() The function returns the number of characters found in the string before any specified character is found.
Note:This function is binary safe.
Syntax
strspn(string,charlist,start,length)
| Parameter | Description |
|---|---|
| string | Required. Specify the string to be searched. |
| charlist | Required. Specify the characters to be searched for. |
| start | Optional. Specify where to start in the string. |
| length | Optional. Define the length of the string. |
Technical Details
| Return Value: | Return the number of characters contained in the string: charlist The number of characters specified in the parameter. |
| PHP Version: | 4+ |
| Update Log: | In PHP 4.3, a new feature was added: start and length Parameter. |
More Examples
Example 1
Return the number of characters contained in the string "abcdefand":
<?php
echo strspn("abcdefand","abc");
?>
