wordpress debug hooks

wordpress-debug-hooks.php

<?php

// function.php
// using: ?showDebugTrace=1&showDebugTime=1&minExecutionTime=0.2

function calevans_action_trace()
{
	/*
	 * Even though this plugin should never EVER be used in production, this is
	 * a safety net. You have to actually set the showTrace=1 flag in the query
	 * string for it to operate. If you don't it will still slow down your
	 * site, but it won't do anything.
	 */
	if (!isset($_GET['showDebugTrace']) || (bool)$_GET['showDebugTrace']!==true) {
		return;
	}
	/*
	 * There are 2 other flags you can set to control what is output
	 */
	$showArgs = (isset($_GET['showDebugArgs'])?(bool)$_GET['showDebugArgs']:false);
	$showTime = (isset($_GET['showDebugTime'])?(bool)$_GET['showDebugTime']:false);
	$minExecutionTime = isset($_GET['minExecutionTime']) ? (float)$_GET['minExecutionTime'] : 0.01;
	/*
	 * This is the main array we are using to hold the list of actions
	 */
	static $actions = [];
	static $lastActionTime = null;
	/*
	 * Some actions are not going to be of interet to you. Add them into this
	 * array to exclude them. Remove the two default if you want to see them.
	 */
	$excludeActions = ['gettext','gettext_with_context'];
	$thisAction     = current_filter();
	$thisArguments  = func_get_args();
	if (!in_array( $thisAction, $excludeActions )) {
		$time = microtime(true);
		$executionTime = 0;
		if ($lastActionTime) {
			$executionTime = number_format($time - $lastActionTime, 10);
			$executionTime = $executionTime > 0 ? $executionTime : 0;
			$lastActionTime = $time;
		}
		else {
			$lastActionTime = microtime(true);
		}
//		var_dump($executionTime, $lastActionTime);
//var_dump($executionTime, $minExecutionTime);die;
		if ($executionTime > $minExecutionTime) {
//			var_dump($executionTime > $minExecutionTime);die;
			$actions[] = [
				'action'    => $thisAction,
				'time'      => $time,
				'execution_time' => $executionTime,
				'arguments' => print_r($thisArguments,true)
			];
		}
	}
	/*
	 * Shutdown is the last action, process the list.
	 */
	if ($thisAction==='shutdown') {
//		$times = array();
//		foreach ($actions as $key => $row) {
//			$times[$key] = $row['execution_time'];
//		}
//		array_multisort($times, SORT_DESC, $actions);
		calevans_format_debug_output($actions,$showArgs,$showTime);
	}
	return;
}
function calevans_format_debug_output($actions=[],$showArgs=false, $showTime=false)
{
	array_multisort(array_column($actions, 'execution_time'), SORT_DESC, $actions);

	/*
	  * Let's do a little formatting here.
	  * The class "debug" is so you can control the look and feel
	  */
	echo '<pre class="debug">';
	foreach($actions as $thisAction) {
		echo "Action Name : ";
		/*
		 * if you want the timings, let's make sure everything is padded out properly.
		 */
		if ($showTime) {
			$timeParts = explode('.',$thisAction['time']);
			$timeParts2 = explode('.',$thisAction['execution_time']);
//			echo '(' . $timeParts[0] . '.' .  str_pad($timeParts[1],4,'0') . ') ';
			echo '(' . $timeParts2[0] . '.' .  str_pad($timeParts2[1],4,'0') . ') ';
		}
		echo $thisAction['action'] . PHP_EOL;
		/*
		 * If you've requested the arguments, let's display them.
		 */
		if ($showArgs && count($thisAction['arguments'])>0) {
			echo "Args:" . PHP_EOL . print_r($thisAction['arguments'],true);
			echo PHP_EOL;
		}
	}
	echo '</pre>';

	return;
}
/*
 * Hook it into WordPress.
 * all = add this to every action.
 * calevans_action_trace = the name of the function above to call
 * 99999 = the priority. This is the lowest priority action in the list.
 * 99 = the number of parameters that this method can accept. Honestly, if you have a action approaching this many parameter, you really are doing sometheing wrong.
 *
 */
add_action( 'all', 'calevans_action_trace', 99999, 99 );

using: ?showDebugTrace=1&showDebugTime=1&minExecutionTime=0.2

Yes