Is there a difference in using shell_exec() or backticks to execute a shell script in PHP?

When executing a shell script in PHP, there is a difference between using `shell_exec()` and backticks. `shell_exec()` returns the output of the shell command as a string, while backticks execute the shell command and return the output directly. If you need to capture the output of the shell script, `shell_exec()` is the appropriate function to use. If you simply need to execute the shell script without capturing the output, backticks can be used. 

// Using shell_exec() to execute a shell script and capture the output
$output = shell_exec('your_shell_script.sh');
echo $output;

// Using backticks to execute a shell script without capturing the output
`your_shell_script.sh`;

Keywords

shell_exec backticks execute shell script PHP

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