w3resource

PHP: strcspn() function

Description

The strcspn() function is used to get the number of characters that occur between the start of the main string and the first occurrence of any character listed in the second string.

Version:

(PHP 4 and above)

Syntax:

strcspn(main_string, second_string, start_position, string_length)

Parameters:

Name Description Required /
Optional		 Type
main_string The initial string. Required String
second_string The second string whose characters will be checked. Required String
start_position Starting position of the string to examine. Optional Integer
string_length Length of the string to examine. Optional Integer

Return value:

The length of the segment.

Value Type: Integer.

Pictorial Presentation

php-string-strcspn()

Example:

<?php
echo strcspn('W3resource.com', '.');
?>

Output: 

10

View the example in the browser

See also

PHP Function Reference

Previous: strcoll
Next: strip_tags



PHP: Tips of the Day

Get the full URL in PHP

Have a look at $_SERVER['REQUEST_URI'], i.e.

Example:

$actual_link = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";

(Note that the double quoted string syntax is perfectly correct)

If you want to support both HTTP and HTTPS, you can use

$actual_link = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http") . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";

Editor's note: using this code has security implications. The client can set HTTP_HOST and REQUEST_URI to any arbitrary value it wants.

Ref : https://bit.ly/2ZYItNJ