PHP性能监控测试－－－－Xhprof
开始工作到现在，除了做新手任务，基本上都是和服务器端打交道，做前端的时间很短
目前公司的性能监控和测试：Xhprof和ab测试
Xhprof----facebook开源的，轻量级的PHP性能分析工具： 包括函数的调用次数，花费的时间（自身花费时间和包含内部函数花费的时间），所占内存/CPU，所占内存的峰值及所占百分比
具体怎么安装，使用可以去百度一下，这个真的是灰常的好用可以非常快的知道性能瓶颈在哪个文件的哪个函数，然后针对性的做优化：给个截图具体说明数据库，查看源代码，竟然有连表查询，然后查询放到了foreach中，导致了很多次小的查询。接下来就剩下针对性的优化了
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PHP and Python: Comparing Two Popular Programming Languages
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PHP in Action: Real-World Examples and Applications
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PHP: A Key Language for Web Development
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PHP vs. Python: Understanding the Differences
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PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.
Explain the match expression (PHP 8 ) and how it differs from switch.
Apr 06, 2025 am 12:03 AM
In PHP8, match expressions are a new control structure that returns different results based on the value of the expression. 1) It is similar to a switch statement, but returns a value instead of an execution statement block. 2) The match expression is strictly compared (===), which improves security. 3) It avoids possible break omissions in switch statements and enhances the simplicity and readability of the code.
The Enduring Relevance of PHP: Is It Still Alive?
Apr 14, 2025 am 12:12 AM
PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.
PHP vs. Other Languages: A Comparison
Apr 13, 2025 am 12:19 AM
PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.
PHP and Python: Code Examples and Comparison
Apr 15, 2025 am 12:07 AM
PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.
