How can one debug a PHP script that throws an "undefined function" error when run through a cron job?

The issue of getting an "undefined function" error when running a PHP script through a cron job typically occurs because the script is unable to locate the required function due to differences in environment variables. To solve this, you can specify the full path to the PHP binary and the script file within the cron job command. Example PHP code snippet: 

<?php
// Define the full path to the PHP binary and the script file
$phpBinary = '/usr/bin/php';
$scriptFile = '/path/to/your/script.php';

// Execute the PHP script using the specified path to the PHP binary
exec("$phpBinary $scriptFile");
?>

Keywords

PHP debugging cron job undefined function error

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