


The situation is as follows:
1. After clicking the save button, the page cannot be redirected normally, and a blank page appears;
2. Refreshing the page shows that many items in the navigation are no longer available, and the items that still exist cannot be clicked to enter the normal page.
After testing many times without finding any problems, I reinstalled and tested many times, and finally an error page appeared: "drupal Maximum execution time of 30 seconds exceeded database in /mysqli.inc". After looking at this file, I finally found it. Light up. After searching on Baidu, I found three solutions. Try them one by one and the problem will be solved.
Write down these methods now:
Method 1: Change the php.ini file of PHP and set the value of max_execution_time to a larger value.
Method 2: Use PHP code to change and call the ini_set() function to set, such as ini_set('max_execution_time', 1000). The call of this function can be added to Drupal's settings.php, but after the operation is completed, it is best to use this The function call is canceled.
Method 3: (haven’t tried it) Find the my.ini (my.cnf) file in the root directory of mysql, open it and find the last line
[mysqld]
port=3306
Add below:
set-variable = max_allowed_packet =Set something larger, such as 10M
The above introduces the solution to the inexplicable error when adding modules in drupal7 Drupal (which often occurs when there are many modules), including the content of drupal7. I hope it will be helpful to friends who are interested in PHP tutorials.

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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