How can AJAX and cron jobs be utilized to control the behavior of PHP scripts in response to external variables?

To control the behavior of PHP scripts in response to external variables, you can use AJAX to send requests to the server without refreshing the page and cron jobs to schedule tasks at specific times. By combining these two techniques, you can create a system where PHP scripts are triggered by external variables through AJAX requests and scheduled to run at specific intervals using cron jobs. 

// AJAX request handler in PHP script
if(isset($_POST['external_variable'])){
    // Perform actions based on the external variable
}

// Cron job to run PHP script at specific intervals
// Example: run script every hour
0 * * * * php /path/to/script.php

Keywords

AJAX cron jobs PHP scripts external variables behavior control

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