Are there any specific PHP configuration settings or server permissions that need to be adjusted to ensure successful execution of commands using PHP scripts?

When executing commands using PHP scripts, it is important to ensure that the server has the necessary permissions to run these commands. One common issue is the 'safe_mode' setting in PHP, which can restrict the execution of certain commands. To ensure successful execution, you may need to adjust the 'safe_mode' setting or other relevant configuration settings in your PHP configuration file.

// Example code to adjust the 'safe_mode' setting in PHP
ini_set('safe_mode', 0);