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Tips for getting PHP scripts to run in the background
Home Backend Development PHP Tutorial How to make PHP script run in the background by adding parameters -d?

How to make PHP script run in the background by adding parameters -d?

Apr 01, 2025 pm 02:27 PM
tool workerman the difference php script

How to make PHP script run in the background by adding parameters -d?

Tips for getting PHP scripts to run in the background

In PHP development, sometimes it is necessary to keep the script running in the background without consuming the terminal session. This article introduces a method to achieve this with the nohup command and explains how it differs from other background running tools.

Suppose we have a PHP script called s.php whose code contains an infinite loop:

 <?php cli_set_process_title('queue-server');

while (true) {
    // ...Your code...
}
?>

Running php s.php directly will cause the script to run in the foreground and requires manual Ctrl C terminating. In order to achieve workerman -like background operation effect (that is, the script will automatically run in the background after executing the command), we need to use the nohup command.

The correct command is as follows:

 nohup php s.php 2>&1 &

This command runs the script in the background and redirects both standard output and standard error output to the nohup.out file. 2>&1 redirects the standard error to the standard output, & means the background is running.

Important Note: workerman and php are different tools. workerman is a PHP-based server framework that has the capabilities of background operation and process management. php is just a script interpreter, and it does not have the functions of a daemon. Therefore, it is impossible to directly make a simple analogy between php and server frameworks such as workerman . The nohup command is a common way to make php scripts run in the background, but it does not have process management functions like workerman .

If more granular process management is required (such as process monitoring, restart, etc.), it is recommended to use professional process management tools or integrate the corresponding daemon mechanism in PHP scripts. Simple background operation, nohup command is enough.

The above is the detailed content of How to make PHP script run in the background by adding parameters -d?. For more information, please follow other related articles on the PHP Chinese website!

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