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Directory : /var/www/vhosts/lautnusantara.com/httpdocs/mis/system/Debug/ |
<?php /** * This file is part of CodeIgniter 4 framework. * * (c) CodeIgniter Foundation <admin@codeigniter.com> * * For the full copyright and license information, please view * the LICENSE file that was distributed with this source code. */ namespace CodeIgniter\Debug; use Closure; /** * Iterator for debugging. */ class Iterator { /** * Stores the tests that we are to run. * * @var array */ protected $tests = []; /** * Stores the results of each of the tests. * * @var array */ protected $results = []; /** * Adds a test to run. * * Tests are simply closures that the user can define any sequence of * things to happen during the test. * * @return $this */ public function add(string $name, Closure $closure) { $name = strtolower($name); $this->tests[$name] = $closure; return $this; } /** * Runs through all of the tests that have been added, recording * time to execute the desired number of iterations, and the approximate * memory usage used during those iterations. * * @return string|null */ public function run(int $iterations = 1000, bool $output = true) { foreach ($this->tests as $name => $test) { // clear memory before start gc_collect_cycles(); $start = microtime(true); $startMem = $maxMemory = memory_get_usage(true); for ($i = 0; $i < $iterations; $i++) { $result = $test(); $maxMemory = max($maxMemory, memory_get_usage(true)); unset($result); } $this->results[$name] = [ 'time' => microtime(true) - $start, 'memory' => $maxMemory - $startMem, 'n' => $iterations, ]; } if ($output) { return $this->getReport(); } return null; } /** * Get results. */ public function getReport(): string { if (empty($this->results)) { return 'No results to display.'; } helper('number'); // Template $tpl = '<table> <thead> <tr> <td>Test</td> <td>Time</td> <td>Memory</td> </tr> </thead> <tbody> {rows} </tbody> </table>'; $rows = ''; foreach ($this->results as $name => $result) { $memory = number_to_size($result['memory'], 4); $rows .= "<tr> <td>{$name}</td> <td>" . number_format($result['time'], 4) . "</td> <td>{$memory}</td> </tr>"; } $tpl = str_replace('{rows}', $rows, $tpl); return $tpl . '<br/>'; } }