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<?php |
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/***************************************** |
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* Title : PHP Quick Profiler Class |
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* Author : Created by Ryan Campbell |
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* URL : http://particletree.com/features/php-quick-profiler/ |
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* Description : This class processes the logs and organizes the data |
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* for output to the browser. Initialize this class with a start time |
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* at the beginning of your code, and then call the display method when |
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* your code is terminating. |
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*****************************************/ |
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namespace Particletree\Pqp; |
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use Exception; |
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class PhpQuickProfiler |
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{ |
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/** @var double */ |
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protected $startTime; |
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/** @var Console */ |
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protected $console; |
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/** @var Display */ |
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protected $display; |
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/** @var array */ |
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protected $profiledQueries = array(); |
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/** |
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* @param double $startTime |
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*/ |
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public function __construct($startTime = null) |
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{ |
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if (is_null($startTime)) { |
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$startTime = microtime(true); |
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} |
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$this->startTime = $startTime; |
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} |
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/** |
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* @param Console $console |
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*/ |
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public function setConsole(Console $console) |
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{ |
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$this->console = $console; |
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} |
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/** |
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* @param Display $display |
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*/ |
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public function setDisplay(Display $display) |
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{ |
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$this->display = $display; |
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} |
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/** |
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* Get data about files loaded for the application to current point |
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* |
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* @returns array |
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*/ |
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public function gatherFileData() |
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{ |
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$files = get_included_files(); |
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$data = array(); |
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foreach ($files as $file) { |
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array_push($data, array( |
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'name' => $file, |
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'size' => filesize($file) |
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)); |
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} |
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return $data; |
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} |
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/** |
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* Get data about memory usage of the application |
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* |
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* @returns array |
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*/ |
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public function gatherMemoryData() |
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{ |
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$usedMemory = memory_get_peak_usage(); |
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$allowedMemory = ini_get('memory_limit'); |
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return array( |
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'used' => $usedMemory, |
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'allowed' => $allowedMemory |
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); |
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} |
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/** |
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* @param array $profiledQueries |
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*/ |
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public function setProfiledQueries(array $profiledQueries) |
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{ |
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$this->profiledQueries = $profiledQueries; |
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} |
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/** |
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* Get data about sql usage of the application |
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* |
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* @param object $dbConnection |
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* @returns array |
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*/ |
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public function gatherQueryData($dbConnection = null) |
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{ |
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if (is_null($dbConnection)) { |
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return array(); |
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} |
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if (empty($this->profiledQueries) && property_exists($dbConnection, 'queries')) { |
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$this->setProfiledQueries($dbConnection->queries); |
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} |
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$data = array(); |
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foreach ($this->profiledQueries as $query) { |
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array_push($data, array( |
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'sql' => $query['sql'], |
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'explain' => $this->explainQuery($dbConnection, $query['sql'], $query['parameters']), |
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'time' => $query['time'] |
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)); |
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} |
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return $data; |
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} |
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/** |
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* Attempts to explain a query |
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* |
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* @param object $dbConnection |
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* @param string $query |
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* @param array $parameters |
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* @throws Exception |
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* @return array |
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*/ |
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protected function explainQuery($dbConnection, $query, $parameters = array()) |
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{ |
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$driver = $dbConnection->getAttribute(\PDO::ATTR_DRIVER_NAME); |
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$query = $this->getExplainQuery($query, $driver); |
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$statement = $dbConnection->prepare($query); |
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if ($statement === false) { |
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throw new Exception('Invalid query passed to explainQuery method'); |
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} |
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$statement->execute($parameters); |
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$result = $statement->fetch(\PDO::FETCH_ASSOC); |
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if ($result === false) { |
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throw new Exception('Query could not be explained with given parameters'); |
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} |
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return $result; |
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} |
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/** |
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* Attempts to figure out what kind of explain query format the db wants |
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* |
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* @param string $query |
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* @param string $driver |
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* @throws Exception |
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* @return string |
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*/ |
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protected function getExplainQuery($query, $driver) |
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{ |
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if ($driver == 'mysql') { |
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return "EXPLAIN {$query}"; |
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} elseif ($driver == 'sqlite') { |
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return "EXPLAIN QUERY PLAN {$query}"; |
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} |
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throw new Exception('Could not process db driver'); |
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} |
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/** |
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* Get data about speed of the application |
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* |
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* @returns array |
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*/ |
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public function gatherSpeedData() |
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{ |
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$elapsedTime = microtime(true) - $this->startTime; |
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$elapsedTime = round($elapsedTime, 3); |
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$allowedTime = ini_get('max_execution_time'); |
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return array( |
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'elapsed' => $elapsedTime, |
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'allowed' => $allowedTime |
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); |
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} |
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/** |
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* Triggers end display of the profiling data |
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* |
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* @param object $dbConnection |
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* @throws Exception |
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*/ |
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public function display($dbConnection = null) |
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{ |
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if (!isset($this->display)) { |
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throw new Exception('Display object has not been injected into Profiler'); |
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} |
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if (!isset($this->console)) { |
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throw new Exception('Console object has not been injected into Profiler'); |
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} |
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$this->display->setStartTime($this->startTime); |
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$this->display->setConsole($this->console); |
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$this->display->setFileData($this->gatherFileData()); |
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$this->display->setMemoryData($this->gatherMemoryData()); |
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$this->display->setQueryData($this->gatherQueryData($dbConnection)); |
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$this->display->setSpeedData($this->gatherSpeedData()); |
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$this->display->__invoke(); |
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} |
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} |
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jacobemerick /
pqp
