PHP strspn() Function

Example

Return the number of characters contained in the string "Hello world!":

<?php
echo strspn("Hello world!","kHlleo");
?>

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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");
?>

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