How Can I Monitor PHP Script Execution Time within the Script Itself?

Monitoring Script Execution Time in PHP

In PHP, tracking script execution time is crucial for enforcing the max_execution_time limit. However, is it possible to access this information within the script itself?

Solution

To monitor the wall-clock time (rather than CPU execution time), utilize the following code:

// Start time
$time_start = microtime(true); 

// Script execution
for($i=0; $i<1000; $i++){
 // Perform operations
}

// End time
$time_end = microtime(true);

// Execution time computation
$execution_time = ($time_end - $time_start)/60;

// Output
echo '<b>Total Execution Time:</b> '.$execution_time.' Mins';

Note:

This method includes time spent waiting for external resources (e.g., database), which is not considered in the max_execution_time limit.

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