search
HomeBackend DevelopmentPHP8Server performance revealed: master the underlying development principles of PHP8
Server performance revealed: master the underlying development principles of PHP8Sep 09, 2023 pm 06:09 PM
phpServer performanceLow-level development

Server performance revealed: master the underlying development principles of PHP8

Server performance revealed: Master the underlying development principles of PHP8

Introduction:
In the development process of today's Web applications, server performance is a crucial issue Important factor. Especially in high concurrency situations, server performance often directly affects user experience and system stability. PHP, as a commonly used server scripting language, is widely used in Web development. This article will delve into the underlying development principles of PHP8 to help developers better understand the methods and practices of server performance optimization.

1. Advantages and new features of PHP8
PHP8 is the latest version of PHP. It brings many exciting new features and has a positive impact on improving server performance. The following are some of the main advantages and new features of PHP8:

  1. JIT compiler: PHP8 introduces the JIT (Just-in-Time) compiler, which can directly compile PHP code into machine code. This just-in-time compilation method can greatly improve the running speed of PHP, especially in long-running scenarios.
  2. Performance improvements: PHP8 has made a lot of optimizations to the underlying engine, improving the performance and execution efficiency of the language. In some benchmark tests, PHP8 can improve performance by an average of 20% to 30% compared to previous versions.
  3. New syntax features: PHP8 introduces many new syntax features, such as named parameters, anonymous classes, attribute visibility improvements, etc. These syntax features can improve the flexibility and readability of code writing, thereby improving development efficiency.

2. The underlying development principles of PHP8
Understanding the underlying development principles of PHP8 is very important to optimize server performance and fix potential problems. Below we will delve into the underlying development principles of PHP8 from several aspects.

  1. Zend engine: Zend engine is the core component of PHP8 and is responsible for interpreting and executing PHP code. It consists of various modules such as lexical analyzer, syntax analyzer, compiler and executor. Developers can use the API of the Zend engine for extended development and performance tuning.
  2. Compilation process: The compilation process of PHP8 includes steps such as lexical analysis, syntax analysis and intermediate code generation. During the compilation process, the Zend engine optimizes and transforms the code, including memory management, function calling, and variable parsing.
  3. Memory management: Memory management is one of the key points for optimizing performance in PHP8. In PHP8, new memory management methods are introduced, such as reference counting, generational recycling, etc. Developers can write more efficient code by understanding the memory management principles of PHP8.

Example:
Next, we will use a simple example to demonstrate the application of the underlying development principles of PHP8. The following is a PHP function that calculates the Fibonacci sequence:

function fib($n) {
  if ($n <= 1) {
    return $n;
  } else {
    return fib($n - 1) + fib($n - 2);
  }
}

$start = microtime(true);
echo fib(30);
$end = microtime(true);
echo "Execution time: " . ($end - $start) . " seconds";

In the above code, we define a recursive function fib() to calculate the ## of the Fibonacci sequence #$n items. Calculate the function execution time by using the microtime(true) function. We can run this code and calculate the execution time.

By analyzing the above code, we can find that the performance is very low when calculating larger Fibonacci numbers. This is because the recursive calculation method involves a large number of redundant calculations, resulting in repeated execution of the same calculation tasks.

In order to optimize this code, we can use iteration to calculate the Fibonacci sequence to avoid repeated calculations. The following is the optimized code:

function fib($n) {
  $a = 0;
  $b = 1;
  for ($i = 2; $i <= $n; $i++) {
    $temp = $a + $b;
    $a = $b;
    $b = $temp;
  }
  return $b;
}

$start = microtime(true);
echo fib(30);
$end = microtime(true);
echo "Execution time: " . ($end - $start) . " seconds";

By using iteration, we can greatly improve computing performance. The optimized code performs faster and uses less memory when calculating the Fibonacci sequence than before.

Conclusion:

By in-depth understanding of the underlying development principles of PHP8, we can better understand the methods and practices of server performance optimization. This article introduces the advantages and new features of PHP8, as well as the underlying development principles of PHP8, and gives a simple example to demonstrate its application. I hope this article will be helpful in mastering the underlying development principles of PHP8 and optimizing server performance.

The above is the detailed content of Server performance revealed: master the underlying development principles of PHP8. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
php怎么把负数转为正整数php怎么把负数转为正整数Apr 19, 2022 pm 08:59 PM

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

php怎么实现几秒后执行一个函数php怎么实现几秒后执行一个函数Apr 24, 2022 pm 01:12 PM

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php怎么除以100保留两位小数php怎么除以100保留两位小数Apr 22, 2022 pm 06:23 PM

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

php怎么根据年月日判断是一年的第几天php怎么根据年月日判断是一年的第几天Apr 22, 2022 pm 05:02 PM

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

php怎么替换nbsp空格符php怎么替换nbsp空格符Apr 24, 2022 pm 02:55 PM

方法:1、用“str_replace("&nbsp;","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\&nbsp\;||\xc2\xa0)/","其他字符",$str)”语句。

php怎么判断有没有小数点php怎么判断有没有小数点Apr 20, 2022 pm 08:12 PM

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

php怎么设置implode没有分隔符php怎么设置implode没有分隔符Apr 18, 2022 pm 05:39 PM

在PHP中,可以利用implode()函数的第一个参数来设置没有分隔符,该函数的第一个参数用于规定数组元素之间放置的内容,默认是空字符串,也可将第一个参数设置为空,语法为“implode(数组)”或者“implode("",数组)”。

php字符串有没有下标php字符串有没有下标Apr 24, 2022 am 11:49 AM

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

SublimeText3 Linux new version

SublimeText3 Linux new version

SublimeText3 Linux latest version

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools

SublimeText3 English version

SublimeText3 English version

Recommended: Win version, supports code prompts!