profiler = new PhpQuickProfiler(PhpQuickProfiler::getMicroTime());
}
public function init() {
$this->sampleConsoleData();
$this->sampleDatabaseData();
$this->sampleMemoryLeak();
$this->sampleSpeedComparison();
}
/*-------------------------------------------
EXAMPLES OF THE 4 CONSOLE FUNCTIONS
-------------------------------------------*/
public function sampleConsoleData() {
try {
Console::log('Begin logging data');
Console::logMemory($this, 'PQP Example Class : Line '.__LINE__);
Console::logSpeed('Time taken to get to line '.__LINE__);
Console::log(array('Name' => 'Ryan', 'Last' => 'Campbell'));
Console::logSpeed('Time taken to get to line '.__LINE__);
Console::logMemory($this, 'PQP Example Class : Line '.__LINE__);
Console::log('Ending log below with a sample error.');
throw new Exception('Unable to write to log!');
}
catch(Exception $e) {
Console::logError($e, 'Sample error logging.');
}
}
/*-------------------------------------
DATABASE OBJECT TO LOG QUERIES
--------------------------------------*/
public function sampleDatabaseData() {
/*$this->db = new MySqlDatabase(
'your DB host',
'your DB user',
'your DB password');
$this->db->connect(true);
$this->db->changeDatabase('your db name');
$sql = 'SELECT PostId FROM Posts WHERE PostId > 2';
$rs = $this->db->query($sql);
$sql = 'SELECT COUNT(PostId) FROM Posts';
$rs = $this->db->query($sql);
$sql = 'SELECT COUNT(PostId) FROM Posts WHERE PostId != 1';
$rs = $this->db->query($sql);*/
}
/*-----------------------------------
EXAMPLE MEMORY LEAK DETECTED
------------------------------------*/
public function sampleMemoryLeak() {
$ret = '';
$longString = 'This is a really long string that when appended with the . symbol
will cause memory to be duplicated in order to create the new string.';
for($i = 0; $i < 10; $i++) {
$ret = $ret . $longString;
Console::logMemory($ret, 'Watch memory leak -- iteration '.$i);
}
}
/*-----------------------------------
POINT IN TIME SPEED MARKS
------------------------------------*/
public function sampleSpeedComparison() {
Console::logSpeed('Time taken to get to line '.__LINE__);
Console::logSpeed('Time taken to get to line '.__LINE__);
Console::logSpeed('Time taken to get to line '.__LINE__);
Console::logSpeed('Time taken to get to line '.__LINE__);
Console::logSpeed('Time taken to get to line '.__LINE__);
Console::logSpeed('Time taken to get to line '.__LINE__);
}
public function __destruct() {
$this->profiler->display($this->db);
}
}
$pqp = new PQPExample();
$pqp->init();
?>
PHP Quick Profiler Demo
On this Page You Can See How to
Use the PHP Quick Profiler to...
- Log PHP Objects. [ Demo ]
- Watch as a string eats up memory. [ Demo ]
- Monitor our queries and their indexes. [ Demo ]
- Ensure page execution time is acceptable. [ Demo ]
- Prevent files from getting out of control. [ Demo ]
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