How to Execute Bash Scripts from PHP and Avoid Working Directory Issues?

Executing Bash Commands from PHP

When attempting to execute bash scripts from PHP using the shell_exec function, encountering issues can be frustrating. While commands like ls function properly, executing custom scripts may fail.

This problem often arises from the current working directory of PHP. When calling external commands, it's crucial to ensure the script being executed is accessible from the correct directory.

Solution

To resolve this, use the chdir function to change the working directory temporarily before executing the script:

<code class="php">$old_path = getcwd();
chdir('/my/path/');
$output = shell_exec('./script.sh var1 var2');
chdir($old_path);</code>

This technique ensures the script is "in" the intended directory before calling the shell command. The script's path can be specified in the chdir function call. Once the script execution is complete, the original working directory is restored using chdir($old_path).

The above is the detailed content of How to Execute Bash Scripts from PHP and Avoid Working Directory Issues?. For more information, please follow other related articles on the PHP Chinese website!