How to reverse an integer in php

php method to reverse an integer: 1. Use the strval() function to convert the specified integer into a string type, the syntax is "strval (integer)"; 2. Use the strrev() function to reverse an integer string That’s it, the syntax is “strrev(integer string)”.

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

How to reverse php An integer

In php, if you want to reverse an integer, you can use the strrev() function:

• First convert the specified integer to String type

• Then use the strrev() function to reverse the integer string

Implementation code:

<?php
header("Content-type:text/html;charset=utf-8");
function reverse($num) {
	$str=strval($num);
	echo strrev($str)."<br>";
}
reverse(123);
reverse(234);
reverse(23455);
reverse(34235);
reverse(43233);
?>

Description:

strval() function is used to obtain the string value of a variable.

strrev() function is used to reverse a string.

Recommended learning: "PHP Video Tutorial"

The above is the detailed content of How to reverse an integer in php. For more information, please follow other related articles on the PHP Chinese website!