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monolog-based profiler
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This package provides a simple to use profiler, with the power of monolog.


  • PHP 5.4 or higher
  • Monolog (automatically installed with composer)


Install as any composer package.


You should load the profiler early in your code.

$profiler = new Profiler();

Until enable isn't run, no request will be logged. You can setup monolog handlers to have custom output options:

$profiler = new Profiler();
$profiler->pushHandler(new ChromePHPHandler());

$profiler->log("Profiler enabled");

HTML output

Remember to check whether you have a text/html request before inserting the HTML profiler panel.

You can print the current log at any time with $profiler->getHtml().

If you use a framework you might have a $response variable that handles the data sent to the client. To put the profiler at the bottom of the page, you may try something similar to the following.

$content = explode('</body>', $response->getContent());
if (count($content) == 2) {



  • pushHandler() As Monolog's pushHandler() function, allows adding log handlers to the logger

  • getLogger() Returns the Monolog logger so it can be customized

  • enable() Enables the profiler and prints how much time was elapsed since the start of the script

  • isEnabled() Tells if the profiler is enabled

  • log($string, $context) Logs elapsed time since the beginning of the script and total memory usage The $string variable allows setting a string to identify the entry in the log The $context variable allows adding arbitrary data to the entry

  • logMem($string, $variable, $context) Logs memory usage of $variable. While checking, a clone of $variable will be created (it can't be helped), so use with caution. For the rest, it works like log()

  • logStart($string, $context) Like log() but it starts a timer

  • logStop($string, $context) Like log(), but if called after logStart(), $context will contain elapsed time

  • getHtml() Returns an HTML representation of the logged entries

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