w3resource

PHP: strspn() function

Description

The strspn() function is used to find the length of the initial segment of a string which matches characters from a second string.

Version:

(PHP 4 and above)

Syntax:

strspn(main_string, search_string, start_position, length) 

Parameters:

Name Description Required /
Optional
Type
main_string The first string. Required String
search_string The searched string. Required String
start_position Sets the starting position of the first string. Negative value counts position from the end of main_string. Optional Integer
length Sets the no. of characters to be checked in the main_string. Optional Integer

Return value:

Returns the length of the initial segment of main_string.

Value Type: Integer

Pictorial Presentation

string_strspn

Example:

<?php
$string1='W3RESOURCE';
echo strspn($string1, 'W3Res');
?>

Output:

3

View the example in the browser

See also

PHP Function Reference

Previous: strrpos
Next: strstr



PHP: Tips of the Day

PHP: PHPDoc type hinting for array of objects?

Use:

/* @var $objs Test[] */
foreach ($objs as $obj) {
    // Typehinting will occur after typing $obj->
}

when typehinting inline variables, and

class A {
    /** @var Test[] */
    private $items;
}

Ref : https://bit.ly/31a2QJN