w3resource

PHP: strrev() function

Description

The strrev() function is used to reverse a string.

Version:

(PHP 4 and above)

Syntax:

strrev(main_string)

Parameter:

Name Description Required /
Optional
Type
main_string The string to be reversed. Required String

Return value:

The reversed string.

Value Type: String.

Pictorial Presentation

string_strrev

Example:

<?php
$main_string='w3resource.com';
echo strrev($main_string);
?>

Output:

moc.ecruoser3w

View the example in the browser

See also

PHP Function Reference

Previous: strrchr
Next: strripos



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