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Rule backtick_to_shell_exec

Converts backtick operators to shell_exec calls.

Description

Conversion is done only when it is non risky, so when special chars like single-quotes, double-quotes and backticks are not used inside the command.

Examples

Example #1

--- Original
+++ New
 <?php
-$plain = `ls -lah`;
-$withVar = `ls -lah $var1 ${var2} {$var3} {$var4[0]} {$var5->call()}`;
+$plain = shell_exec("ls -lah");
+$withVar = shell_exec("ls -lah $var1 ${var2} {$var3} {$var4[0]} {$var5->call()}");

Rule sets

The rule is part of the following rule sets:

• @PhpCsFixer

• @Symfony

References

• Fixer class: PhpCsFixer\Fixer\Alias\BacktickToShellExecFixer

• Test class: PhpCsFixer\Tests\Fixer\Alias\BacktickToShellExecFixerTest

The test class defines officially supported behaviour. Each test case is a part of our backward compatibility promise.