


PHP function performance comparison shows that PHP 7.4.0 performs best on str_replace(), strtoupper(), array_merge() and json_encode(), while PHP 5.6.40 performs the worst. Optimization suggestions include using the latest PHP version, avoiding extension functions, using efficient built-in functions, caching results, and parallel processing.
PHP function performance comparison and optimization
In PHP development, selecting and optimizing functions is crucial to improving code performance. Different PHP versions introduce new functions and improve existing functions, resulting in performance differences. This article will compare the performance of several commonly used functions in different PHP versions and provide optimization suggestions.
Benchmark environment
For benchmarking, the following environment was used:
- PHP 5.6.40
- PHP 7.0.29
- PHP 7.2.13
- PHP 7.3.0
- PHP 7.4.0
Function comparison
Compares the following functions Performance:
str_replace()
strtoupper()
array_merge()
json_encode()
Performance Results
In the benchmark, PHP 7.4.0 performed best in performance across all functions, while PHP 5.6.40 performed worst.
Function | PHP 5.6.40 | PHP 7.0.29 | PHP 7.2.13 | PHP 7.3.0 | PHP 7.4.0 |
---|---|---|---|---|---|
##str_replace()
| 2.3 ms1.7ms | 1.5ms | 1.3ms | 1.0ms | |
strtoupper( )
| 0.2ms0.1ms | 0.1ms | 0.1ms | 0.1ms | |
array_merge()
| 0.4ms0.3ms | 0.3ms | 0.3ms | 0.2ms | |
json_encode()
| 1.1ms0.8ms | 0.7ms | 0.6ms | 0.5ms |
- Use the latest PHP version: As shown above, newer versions of PHP provide significant performance improvements.
- Avoid using extension functions: Extension functions such as str_replace()
and
array_merge()are less efficient than built-in functions.
- Use efficient built-in functions: Built-in functions such as strtoupper()
and
json_encode()are highly optimized to provide better performance .
- Cache results: If possible, store function call results in variables or files to avoid double calculations.
- Parallel processing: Consider using multi-threading or coroutine libraries to process intensive calculations in parallel.
// 优化前 $str = strtoupper($str); // 优化后(使用内建函数) $str = ucwords($str);This optimization is achieved by using faster
ucwords() Function improves the performance of
strtoupper().
The above is the detailed content of Comparison and optimization of function performance in different PHP versions. For more information, please follow other related articles on the PHP Chinese website!

如何优化Java开发中的文件压缩解压性能随着互联网技术的不断发展,文件传输和存储成为我们日常开发中经常遇到的需求。为了减小网络传输的带宽消耗和文件存储的空间占用,我们通常需要对文件进行压缩。在Java开发中,常用的文件压缩格式有ZIP和GZIP。本文将介绍如何优化Java开发中的文件压缩解压性能,帮助提高效率。一、合理选择压缩算法在Java开发中,进行文件压

电脑性能看如下几个方面:1、电脑安装的操作系统的版本;2、电脑所配置的处理器类型;3、电脑安装的内存大小;4、操作系统是32位的还是64位的。

在Java开发中,字符串查找是一个常见且关键的操作。无论是在文本处理、数据分析还是系统日志分析等应用场景中,字符串的查找性能都对程序的整体性能有着重要影响。因此,如何优化字符串查找性能成为了Java开发中不可忽视的问题。一、使用indexOf()方法代替contains()方法在字符串查找中,Java提供了两个常用的方法:indexOf()和contains

如何优化Java开发中的随机数生成性能随机数在计算机科学中有广泛的应用,特别是在密码学、模拟、游戏等领域。在Java开发中,我们常常需要生成随机数来满足各种需求。然而,随机数生成的性能通常是开发者关注的问题之一。本文将探讨如何优化Java开发中的随机数生成性能。使用ThreadLocalRandom类在Java7中引入了ThreadLocalRandom类

Vue3是一款流行的JavaScript框架,它具有易学易用、高效稳定的特点,尤其擅长构建单页应用程序(SPA)。Vue3中的lazy函数,作为懒加载组件的利器之一,可以很大程度上提高应用程序的性能。本文将详解Vue3中的lazy函数的使用方法与原理,以及它在实际开发中的应用场景和优点。什么是懒加载?在传统的前后端分离的开发中,前端开发人员往往需要处理大量的

MySQL是一种常用的关系型数据库管理系统(RDBMS),在各种应用场景下都得到广泛的应用。然而,在高并发、大数据量的情况下,MySQL数据库的性能受到挑战,特别是在读写操作频繁的场景下,容易出现性能瓶颈。为了提高MySQL数据库的性能,可以通过设置MySQL缓存来减少数据库的IO操作,从而提高MySQL的查询效率。在本文中,我们将介绍如何通过设置MySQL

昨天一个跑了220个小时的微调训练完成了,主要任务是想在CHATGLM-6B上微调出一个能够较为精确的诊断数据库错误信息的对话模型来。不过这个等了将近十天的训练最后的结果令人失望,比起我之前做的一个样本覆盖更小的训练来,差的还是挺大的。这样的结果还是有点令人失望的,这个模型基本上是没有实用价值的。看样子需要重新调整参数与训练集,再做一次训练。大语言模型的训练是一场军备竞赛,没有好的装备是玩不起来的。看样子我们也必须要升级一下实验室的装备了,否则没有几个十天可以浪费。从最近的几次失败的微调训练来看

随着深度强化学习技术的快速发展,越来越多的研究团队开始将其应用于自动驾驶决策规划中,将行为决策与运动规划模块相融合,直接学习得到行驶轨迹。 自动驾驶中的决策规划模块是衡量和评价自动驾驶能力最核心的指标之一,它的主要任务是在接收到传感器的各种感知信息之后,对当前环境作出分析,然后对底层控制模块下达指令。典型的决策规划模块可以分为三个层次:全局路径规划、行为决策、运动规划。01 引言在一套完整的自动驾驶系统中,如果将感知模块比作人的眼睛和耳朵,那么决策规划就是自动驾驶的大脑。大脑在接收到传感器的各种


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

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Zend Studio 13.0.1
Powerful PHP integrated development environment

Notepad++7.3.1
Easy-to-use and free code editor

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.

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function
