Quickies, by Andrea Olivato

[PHP] How much memory does your app consume?

Reblogged codepuzzling:

Here it is a simple function to display how much memory your PHP script is consuming.

// debug function with time, memory consumption (MB) and optional custom message
public function getMemoryUsage($message="", $echo=1) 
{
 $mem_used = memory_get_usage(true)/ 1024 / 1024;
 $mem_peak = memory_get_peak_usage(true) / 1024 / 1024;
 preg_match("/(\d)+/",ini_get('memory_limit'),$matches);  // regexp, takes only digits
 $mem_limit = $matches[0];
 $percentual = ($mem_used * $mem_limit) / 100;

 $res = date("H:i:s",time())." ".$message." ";		
 $res .= "[MEM_USED: $mem_used MB ($percentual%) - Peak: $mem_peak MB]\n";
 if($echo) echo $res;
 else return $res;
}