Course Elementary  26131

Course Introduction：Starting from scratch, you can solve conventional business logic, operate MySQL with PHP to add, delete, modify, and query, display dynamic website data, master the MVC framework, master the basics of the ThinkPHP6 framework, and learn and flexibly master various knowledge points involved in PHP development.

Course Intermediate  4879

Course Introduction：Make your own PHP framework to help you become an architect step by step. Improve the framework step by step, which involves composer, database chain operations, and various excel and pdf tools. As well as scheduled tasks, image processing, image search, command line operations, dependency injection, annotation routing, middleware, aop aspect programming, the use of mysql pessimistic locks, optimistic locks, and various PHP issues such as dealing with high concurrency.

Course Introduction：The user_error() function creates user-defined error messages. The user_error() function is used to trigger an error message under user-specified conditions. It can be used with the built-in error handler, or with a user-defined function set by the set_error_handler() function.

2017-07-11 comment 0  1872

Course Introduction：The user_error() function is an alias for the trigger_error() function in PHP. It is used to trigger user error conditions, either with the built-in error handler or with a user-defined function that has been set as a new error handler. Syntax user_error(error_msg,error_type) Parameter error_msg-Specifies the error message. Length limit is 1024 characters. error_type - Specifies the error type for this error message. The following are possible error types - E_USER_ERROR - Fatal user-generated runtime error. Unrecoverable error. Execution of the script is stopped. E_USER_WAR

2023-08-25 comment 0  1130