PHP execution operator

Introduction

defines an execution operator in PHP. Strings enclosed in backticks (``) are treated as DOS commands (shell commands in UNIX/Linux) and their output is returned. The operation of this operator is similar to the shell_exec() function in PHP.

The following code executes the DIR command and returns the result as a string.

Example

<?php
$list=`dir *.php`;
echo "$list";
?>

Output

The following results will be displayed

Volume in drive C is Windows 10
Volume Serial Number is 540D-CE99
Directory of C:\xampp\php
01/27/2016 05:32 PM 18,869 CompatInfo.php
07/08/2020 06:40 PM 64 test.php
07/11/2020 02:13 PM 48 testscript.php
03/30/2013 05:59 PM 1,447 webdriver-test-example.php
4 File(s) 20,428 bytes
0 Dir(s) 178,002,157,568 bytes free

This is another example of the backtick operator. It executes the type command

Example

<?php
$list=&#39;type testscript.php&#39;;
echo "$list";
?>

Output

will show the following results

type testscript.php

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