Analysis method of PHP code performance_PHP tutorial

How to analyze the performance of PHP code

Performance analysis of PHP code.

You can use xdbug to analyze.

But a better choice is facebook’s performance analysis tool xhprof.

It can be done graphically. The premise is that you have the gd library installed, you may also encounter some minor problems. I remember to update the linux image library.

Install xhprof extension: pecl install xhprof .

/**
 *
 *
 * Beck Confidential
 * Copyright (c) 2013, Beck Corp. .
 * All rights reserved.
 *
 * PHP version 5
 *
 * @category  Aug
 * @package package_name
 * @author beck
 * @date 2013-8-13
 * @license
 * @link
 *
 */
class Xhprof
{
    protected $flags = 0;
    protected $options = array();
    protected $xhprofData = array();
    /**
* To configure your xhprof, you can read the application instructions on the official website of php
* @param unknown $config
* @throws ExtensionNotFoundException
*/
    public function __construct($config = array())
    {
        if (!extension_loaded('xhprof')) {
            throw new ExtensionNotFoundException(
                'Configuration error! Make sure you have xhprof installed correctly.
                please refer http://www.php.net/manual/en/xhprof.examples.php for detail.'
            );
        }
        if (!empty($config['flags'])) {
            $this->flags = (int)$config['flags'];
        }
        if (!empty($config['options'])) {
            $this->options = $config['options'];
        }
    }
    /**
* Enable debugging
*/
    public function enable()
    {
        xhprof_enable($this->flags, $this->options);
    }
    public function disable()
    {
        $this->xhprofData =  xhprof_disable();
    }
    /**
*Show debugging results
* You may need to configure an apache/nginxvirtual host
*/
    public function show()
    {
        $this->disable();
        include_once "xhprof_lib/utils/xhprof_lib.php";
        include_once "xhprof_lib/utils/xhprof_runs.php";
        $xhprof_runs = new XHProfRuns_Default();
        $run_id = $xhprof_runs->save_run($this->xhprofData, "xhprof_testing");
        echo "see xhprof result";
    }
}