strrev
(PHP 4, PHP 5, PHP 7)
strrev — Reverse a string
Description
strrev ( string $string ) : string
Returns string, reversed.
Parameters
-
string -
The string to be reversed.
Return Values
Returns the reversed string.
Examples
Example #1 Reversing a string with strrev()
<?php
echo strrev("Hello world!"); // outputs "!dlrow olleH"
?>
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https://www.php.net/manual/en/function.strrev.php