php session_start的问题
在php中,偶尔会遇到“Fatal error: Maximum execution time of 30 seconds exceeded in D:\website\controller\control.base.php on line 170”的错误,这一行是session_start。速度慢的时候这个错误经常错线,并且页面卡死耍新问题。
------解决方案--------------------
PHP.ini中找到
max_execution_time = 30 ;//设置成你想要的值,单位是秒
(也可以直接设置成不限时:max_execution_time = 0)
------解决方案--------------------
貌似也跟服务器内存有关系
------解决方案--------------------
session_start执行这么长时间很有问题,session理论上读个文件不会这么慢的,是不是被重载过访问数据库了?
------解决方案--------------------
1、你的问题应该是调试期间,访问的载体是同一浏览器窗口的不同选项卡。再次情况下,各选项卡共一个cookie。前面的未结束,后面的只用等待
2、直到 170 行才 session_start,显然你的程序存在严重的问题
------解决方案--------------------
服务器配置的问题,单个脚本运行时间最大值为30秒,请修改PHP.ini中找到
max_execution_time = 30 ;//设置成你想要的值,单位是秒
注:(也可以直接设置成不限时:max_execution_time = 0)这种不太安全
------解决方案--------------------
“Fatal error: Maximum execution time of 30 seconds exceeded in D:\website\controller是指这个脚本运行超出最大运行时间30秒,解决方法两种:
第一种:由于你的程序写的错误,如死循环等等
解决:检查代码
第二种:程序需要,代码正确,如大文件上传导致的
解决:修改PHP.ini中找到
max_execution_time = 30 ;//设置成你想要的值,单位是秒
(也可以直接设置成不限时:max_execution_time = 0) //建议不能设置0,这种不安全
------解决方案--------------------
“Fatal error: Maximum execution time of 30 seconds exceeded in D:\website\controller是指这个脚本运行超出最大运行时间30秒,解决方法两种:
第一种:由于你的程序写的错误,如死循环等等
解决:检查代码
第二种:程序需要,代码正确,如大文件上传导致的
解决:修改PHP.ini中找到
max_execution_time = 30 ;//设置成你想要的值,单位是秒
(也可以直接设置成不限时:max_execution_time = 0) //建议不能设置0,这种不安全
------解决方案--------------------
可以使用auto session的。这样就不用每次写那个语句了。

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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