How can PHP be optimized to handle time-sensitive tasks like cron jobs without running into performance issues?

When handling time-sensitive tasks like cron jobs in PHP, it is important to optimize the code to prevent performance issues. One way to do this is by minimizing the use of resources and ensuring efficient execution of the code. This can be achieved by properly structuring the code, avoiding unnecessary loops or function calls, and using caching techniques where applicable.

// Example of optimizing PHP code for time-sensitive tasks like cron jobs

// Set the maximum execution time for the script
set_time_limit(0);

// Include necessary files and libraries
require_once 'config.php';
require_once 'functions.php';

// Start the timer
$start_time = microtime(true);

// Perform the time-sensitive task
// Your code here

// Calculate the execution time
$execution_time = microtime(true) - $start_time;
echo "Script execution time: $execution_time seconds";