How can PHP developers ensure that their scripts do not negatively impact other users or the hosting provider when running without a Cron job?

PHP developers can ensure that their scripts do not negatively impact other users or the hosting provider by implementing proper error handling, setting time limits for script execution, and optimizing their code for efficiency. One way to achieve this is by using a combination of try-catch blocks to catch and handle any errors, setting a maximum execution time for the script using the `set_time_limit` function, and optimizing the code to minimize resource usage.

// Set maximum execution time to prevent long-running scripts
set_time_limit(30);

// Error handling using try-catch block
try {
    // Your PHP script code here
} catch (Exception $e) {
    // Handle any exceptions or errors here
    echo 'An error occurred: ' . $e->getMessage();
}