Detailed analysis of PHP magic function performance code
I once remembered that Brother Laruence mentioned that it was not recommended to use "magic methods." Since then, whenever magic methods are used, I will subconsciously think about it, is this a good way to take pictures? Since I have been busy with work and learning new knowledge in the past one to two years, I have not done any in-depth exploration on this road and it has been in a daze. This year is a year for me to study in depth, so now I must do some research on this issue. The problem is settled. Let’s first take a look at what Bird Brother Laruence once mentioned on his blog:
When I share the PPT with my colleagues in the company, some people will question that the magic method is not allowed to be used?
Optimization suggestions are suggestions to prevent people from abusing and using them unscrupulously. If you can realize what is slow and what is fast when writing code, so as to avoid unnecessary calls to magic methods, then This is the effect pursued by this optimization suggestion.
Doubt
Is the performance of the magic method really poor?
Is there still a problem with the performance of using magic methods in PHP7?
How should we use magic methods reasonably?
Plan
Faced with my doubts, my plan is:
Statistical comparison between using the magic method and not using it The time difference between magic method script execution
Continuously execute the script n times under PHP5.6.26-1
The average/minimum statistical execution time Value/maximum value
Continuously execute the script n times under PHP7.0.12-2
Statistical average value/minimum value/maximum execution time Value
Currently my personal ability is limited and I can only use this method. If you have a better plan or suggestion, you can tell me, thank you, haha~
test
__construct
First let’s take a look at the experiment of the constructor function __construct. The php script is as follows:
<?php
/**
* 魔术方法性能探索
*
* 构造函数
*
* @author TIGERB <http://www.php.cn/;
*/
require('./function.php');
if (!isset($argv[1])) {
die('error: variable is_use_magic is empty');
}
$is_use_magic = $argv[1];
/**
* 构造函数使用类名
*/
class ClassOne
{
public function classOne()
{
# code...
}
}
/**
* 构造函数使用魔术函数__construct
*/
class ClassTwo
{
public function __construct()
{
# code...
}
}
$a = getmicrotime();
if ($is_use_magic === 'no_magic') {
new ClassOne();
}else {
new ClassTwo();
}
$b = getmicrotime();
echo ($b-$a) . "\n";PHP5.6 does not use magic method data As follows, the unit is microsecond μm
// PHP5.6中连续调用脚本10000次 sh test 10000 no_magic php5 construct // 运行数据统计脚本 sh analysis ./logs/__construct_no_magic_php5.log 10000 // 结果 avg: 34μm max: 483μm min: 26μm
PHP5.6 uses the magic method data as follows, the unit is microsecond μm
// PHP5.6中连续调用脚本10000次 sh test 10000 magic php5 construct // 运行数据统计脚本 sh analysis ./logs/__construct_magic_php5.log 10000 // 结果 avg: 28μm max: 896μm min: 20μm
PHP7.0 does not use the magic method. The data is as follows, the unit is microsecond μm
// PHP7.0中连续调用脚本10000次 sh test 10000 no_magic php construct // 运行数据统计脚本 sh analysis ./logs/__construct_no_magic_php.log 10000 // 结果 avg: 19μm max: 819μm min: 13μm
PHP7.0 uses the magic method. The data is as follows, the unit is Microseconds μm
// PHP7.0中连续调用脚本10000次 sh test 10000 magic php construct // 运行数据统计脚本 sh analysis ./logs/__construct_magic_php.log 10000 // 结果 avg: 14μm max: 157μm min: 10μm
From the above data we can see:
The average execution time of a script using __construct as the constructor is faster than using the class name As a constructor, is about 5 to 6 microseconds faster , whether in php5.6 or php7.0.
__call
Next, let’s take a look at the __call experiment. The php script is as follows:
<?php
/**
* 魔术方法性能探索
*
* 构造函数
*
* @author TIGERB <http://www.php.cn/;
*/
require('./function.php');
if (!isset($argv[1])) {
die('error: variable is_use_magic is empty');
}
$is_use_magic = $argv[1];
/**
* 构造函数使用类名
*/
class ClassOne
{
public function __construct()
{
# code...
}
public function test()
{
# code...
}
}
/**
* 构造函数使用魔术函数__construct
*/
class ClassTwo
{
public function __construct()
{
# code...
}
public function __call($method, $argus)
{
# code...
}
}
$a = getmicrotime();
if ($is_use_magic === 'no_magic') {
$instance = new ClassOne();
$instance->test();
}else {
$instance = new ClassTwo();
$instance->test();
}
$b = getmicrotime();
echo ($b-$a) . "\n";PHP5.6 does not use magic method data as follows , unit microsecond μm
// PHP5.6中连续调用脚本10000次 sh test 10000 no_magic php5 call // 运行数据统计脚本 sh analysis ./logs/__call_no_magic_php5.log 10000 // 结果 avg: 27μm max: 206μm min: 20μm
PHP5.6 uses magic method data as follows, unit microsecond μm
// PHP5.6中连续调用脚本10000次 sh test 10000 magic php5 call // 运行数据统计脚本 sh analysis ./logs/__call_magic_php5.log 10000 // 结果 avg: 29μm max: 392μm min: 22μm
PHP7.0 does not use the magic method. The data is as follows, in microseconds μm
// PHP7.0中连续调用脚本10000次 sh test 10000 no_magic php call // 运行数据统计脚本 sh analysis ./logs/__call_no_magic_php.log 10000 // 结果 avg: 16μm max: 256μm min: 10μm
PHP7.0 uses the magic method. The data is as follows, in microseconds. Seconds μm
// PHP7.0中连续调用脚本10000次 sh test 10000 magic php call // 运行数据统计脚本 sh analysis ./logs/__call_magic_php.log 10000 // 结果 avg: 18μm max: 2459μm min: 11μm
From the above data we can see:
The average execution time of a script using __call is slower than not using it, Approximately 2 microseconds slower, whether in php5.6 or php7.0.
__callStatic
Next, let’s take a look at the __callStatic experiment. The php script is as follows:
<?php
/**
* 魔术方法性能探索
*
* 静态重载函数
*
* @author TIGERB <http://www.php.cn/;
*/
require('./function.php');
if (!isset($argv[1])) {
die('error: variable is_use_magic is empty');
}
$is_use_magic = $argv[1];
/**
* 存在test静态方法
*/
class ClassOne
{
public function __construct()
{
# code...
}
public static function test()
{
# code...
}
}
/**
* 使用重载实现test
*/
class ClassTwo
{
public function __construct()
{
# code...
}
public static function __callStatic($method, $argus)
{
# code...
}
}
$a = getmicrotime();
if ($is_use_magic === 'no_magic') {
ClassOne::test();
}else {
ClassTwo::test();
}
$b = getmicrotime();
echo ($b-$a) . "\n";PHP5.6 does not use magic method data as follows , unit microsecond μm
// PHP5.6中连续调用脚本10000次 sh test 10000 no_magic php5 callStatic // 运行数据统计脚本 sh analysis ./logs/__callStatic_no_magic_php5.log 10000 // 结果 avg: 25μm max: 129μm min: 19μm
PHP5.6 uses magic method data as follows, unit microsecond μm
// PHP5.6中连续调用脚本10000次 sh test 10000 magic php5 callStatic // 运行数据统计脚本 sh analysis ./logs/__callStatic_magic_php5.log 10000 // 结果 avg: 28μm max: 580μm min: 20μm
PHP7.0 does not use the magic method. The data is as follows, in microseconds μm
// PHP7.0中连续调用脚本10000次 sh test 10000 no_magic php callStatic // 运行数据统计脚本 sh analysis ./logs/__callStatic_no_magic_php.log 10000 // 结果 avg: 14μm max: 130μm min: 9μm
PHP7.0 uses the magic method. The data is as follows, in microseconds. μm in seconds
// PHP7.0中连续调用脚本10000次 sh test 10000 magic php callStatic // 运行数据统计脚本 sh analysis ./logs/__callStatic_magic_php.log 10000 // 结果 avg: 14μm max: 159μm min: 10μm
From the above data we can see:
The average execution time of scripts using __callStatic in php5.6 is slower than not using it , About 3 microseconds slower; The average execution time of a script using __callStatic in php7.0 is roughly equal to that without __callStatic;
__set
Next, let’s take a look at the __set experiment. The PHP script is as follows:
<?php
/**
* 魔术方法性能探索
*
* 设置私有属性__set
*
* @author TIGERB <http://www.php.cn/;
*/
require('./function.php');
if (!isset($argv[1])) {
die('error: variable is_use_magic is empty');
}
$is_use_magic = $argv[1];
/**
* 实现公共方法设置私有属性
*/
class ClassOne
{
/**
* 私有属性
*
* @var string
*/
private $someVariable = 'private';
public function __construct()
{
# code...
}
public function setSomeVariable($value = '')
{
$this->someVariable = $value;
}
}
/**
* 使用_set设置私有属性
*/
class ClassTwo
{
/**
* 私有属性
*
* @var string
*/
private $someVariable = 'private';
public function __construct()
{
# code...
}
public function __set($name = '', $value = '')
{
$this->$name = $value;
}
}
$a = getmicrotime();
if ($is_use_magic === 'no_magic') {
$instance = new ClassOne();
$instance->setSomeVariable('public');
}else {
$instance = new ClassTwo();
$instance->someVariable = 'public';
}
$b = getmicrotime();
echo ($b-$a) . "\n";PHP5.6 does not use the magic method. The data is as follows, in microseconds μm
// PHP5.6中连续调用脚本10000次 sh test 10000 no_magic php5 set // 运行数据统计脚本 sh analysis ./logs/__set_no_magic_php5.log 10000 // 结果 avg: 31μm max: 110μm min: 24μm
PHP5.6 uses the magic method. The data is as follows, in microseconds μm
// PHP5.6中连续调用脚本10000次 sh test 10000 magic php5 set // 运行数据统计脚本 sh analysis ./logs/__set_magic_php5.log 10000 // 结果 avg: 33μm max: 138μm min: 25μm
PHP7.0 does not use the magic method. The data is as follows, the unit is microsecond μm
// PHP7.0中连续调用脚本10000次 sh test 10000 no_magic php set // 运行数据统计脚本 sh analysis ./logs/__set_no_magic_php.log 10000 // 结果 avg: 15μm max: 441μm min: 11μm
PHP7.0 uses the magic method The data is as follows, the unit is microsecond μm
// PHP7.0中连续调用脚本10000次 sh test 10000 magic php set // 运行数据统计脚本 sh analysis ./logs/__set_magic_php.log 10000 // 结果 avg: 17μm max: 120μm min: 11μm
We can see from the above data:
The average execution time of scripts using __set is slower than not using it, about 2 microseconds slower, regardless of whether it is in php5. 6 or php7.0.
__get
Next, let’s take a look at the __get experiment. The php script is as follows:
<?php
/**
* 魔术方法性能探索
*
* 读取私有属性__get
*
* @author TIGERB <http://www.php.cn/;
*/
require('./function.php');
if (!isset($argv[1])) {
die('error: variable is_use_magic is empty');
}
$is_use_magic = $argv[1];
/**
* 实现公共方法获取私有属性
*/
class ClassOne
{
/**
* 私有属性
*
* @var string
*/
private $someVariable = 'private';
public function __construct()
{
# code...
}
public function getSomeVariable()
{
return $this->someVariable;
}
}
/**
* 使用_get获取私有属性
*/
class ClassTwo
{
/**
* 私有属性
*
* @var string
*/
private $someVariable = 'private';
public function __construct()
{
# code...
}
public function __get($name = '')
{
return $this->$name;
}
}
$a = getmicrotime();
if ($is_use_magic === 'no_magic') {
$instance = new ClassOne();
$instance->getSomeVariable();
}else {
$instance = new ClassTwo();
$instance->someVariable;
}
$b = getmicrotime();
echo ($b-$a) . "\n";PHP5.6不使用魔术方法数据如下，单位微秒μm
// PHP5.6中连续调用脚本10000次 sh test 10000 no_magic php5 get // 运行数据统计脚本 sh analysis ./logs/__get_no_magic_php5.log 10000 // 结果 avg: 28μm max: 590μm min: 20μm
PHP5.6使用魔术方法数据如下，单位微秒μm
// PHP5.6中连续调用脚本10000次 sh test 10000 magic php5 get // 运行数据统计脚本 sh analysis ./logs/__get_magic_php5.log 10000 // 结果 avg: 28μm max: 211μm min: 22μm
PHP7.0不使用魔术方法数据如下，单位微秒μm
// PHP7.0中连续调用脚本10000次 sh test 10000 no_magic php get // 运行数据统计脚本 sh analysis ./logs/__get_no_magic_php.log 10000 // 结果 avg: 16μm max: 295μm min: 10μm
PHP7.0使用魔术方法数据如下，单位微秒μm
// PHP7.0中连续调用脚本10000次 sh test 10000 magic php get // 运行数据统计脚本 sh analysis ./logs/__get_magic_php.log 10000 // 结果 avg: 19μm max: 525μm min: 12μm
通过上面的数据我们可以看出：
在php5.6中使用__get的脚本执行的平均时间是要大致等于不使用__get的;在php7.0中使用__get的脚本执行的平均时间是要慢于不使用， 大概慢3微秒 。
结语
这里主要测试了__construct()， __call()， __callStatic()， __get()， __set()这五个常用的且可有其他实现方式代替的魔法函数。通过上面的测试再回来解答我的疑惑
魔术方法真的性能比较差吗？
答：除了使用__construct之外，这里使用其他的魔法方法的时间大致慢10微妙以内。
PHP7里使用魔术方法的性能还是存在问题吗？
答：在PHP7中使用与不使用魔术方法之间的差异和在PHP5.6中近乎一致。
我们应该如何合理的使用魔术方法？
答：通过整个测试我们可以看出使不使用魔法方法这之间的执行时间差异大致都是在10微妙以内的，所以如果魔法方法可以很好的节省我们的开发成本和优化我们的代码结构，我们应该可以考虑牺牲掉这不到10微妙。而__construct是要快的，所以使用__construct应该没什么异议。
The above is the detailed content of Detailed analysis of PHP magic function performance code. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian
Dec 24, 2024 pm 04:42 PM
PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati
7 PHP Functions I Regret I Didn't Know Before
Nov 13, 2024 am 09:42 AM
If you are an experienced PHP developer, you might have the feeling that you’ve been there and done that already.You have developed a significant number of applications, debugged millions of lines of code, and tweaked a bunch of scripts to achieve op
How To Set Up Visual Studio Code (VS Code) for PHP Development
Dec 20, 2024 am 11:31 AM
Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c
Explain JSON Web Tokens (JWT) and their use case in PHP APIs.
Apr 05, 2025 am 12:04 AM
JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,
PHP Program to Count Vowels in a String
Feb 07, 2025 pm 12:12 PM
A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total
How do you parse and process HTML/XML in PHP?
Feb 07, 2025 am 11:57 AM
This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an
Explain late static binding in PHP (static::).
Apr 03, 2025 am 12:04 AM
Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.
What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases?
Apr 03, 2025 am 12:03 AM
What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.
