Summary of trigger_error function definition and usage

trigger_error() function creates user-level error messages. The trigger_error() function can be associated with the built-in error handler, or a user-defined function can be used as a new error handler (set_error_handler()). Syntax trigger_error(errormsg,errortype); Parameter description errormsg is required. Specifies the error message. Maximum length 1024 bytes. errortype is optional. Specifies the error type. Possible values: E_USER_ERRORE_USER_WARNINGE_USER_NOTICE (default) trigger_error() Example

1. php trigger_error() function usage?

Introduction: trigger_error() function creates user-level Error message. The trigger_error() function can be associated with the built-in error handler, or a user-defined function can be used as a new error handler (set_error_handler()). 10 recommended articles about the php trigger_error() function

##Introduction: In some PHP built-in In a function (such as mkdir), adding @ in front can block the error thrown by the function. So how can a custom function achieve this? I tried throw new Exception and trigger_error but they cannot be blocked by @. Additional explanation: This is the case. , for example, I want to write a JsonFile::get() method that throws an error when the file does not exist, throws an error when the path is illegal, throws an error when decoding fails, and returns false. When the user cares about the error message, he can catch and Processing;...

3. PHP Custom Error Handling Function trigger_error()_PHP Tutorial

Introduction: PHP custom error handling function trigger_error(). Definition and usage The trigger_error() function creates a user-defined error message. It is used to trigger an error message under user-specified conditions.

4. Example of triggering PHP errors through trigger_error in PHP_PHP tutorial

Introduction: Triggering PHP through trigger_error in PHP Error example. This article mainly introduces the example of triggering PHP error through trigger_error in PHP. This article introduces the error suppressor @ and the trigger_error trigger

Example of triggering PHP errors through trigger_error in PHP, trigger_errorphp_PHP tutorial

Introduction: Example of triggering PHP errors through trigger_error in PHP, trigger_errorphp. Example, trigger_errorphp PHP triggers PHP errors through trigger_error Example [error suppressor @] In addition to error_reporting and displ##6 in php.ini.

#Introduction: Why is the custom error message not displayed when using trigger_error PHP code 7.

Introduction: How come the customized error message is not displayed when using trigger_error? PHP code8.

Introduction: Example of triggering PHP errors through trigger_error in PHP. Examples of triggering PHP errors through trigger_error in PHP This article mainly introduces examples of triggering PHP errors through trigger_error in PHP. This article introduces the error suppressor @ and triggering through trigger_error ##9. Example of triggering PHP errors through trigger_error in PHP, trigger_errorphp

Introduction: Example of triggering PHP errors through trigger_error in PHP, trigger_errorphp. Examples of PHP errors triggered by trigger_error in PHP, trigger_errorphp Examples of PHP errors triggered by trigger_error in PHP [error suppressor @] In addition to error_reporting and displ in php.ini

##10. PHP Example of triggering PHP errors through trigger_error_php example

Introduction: This article mainly introduces examples of triggering PHP errors through trigger_error in PHP. This article introduces the error suppressor @ and Trigger PHP error examples through trigger_error. Friends who need it can refer to

11. PHP custom error handling function trigger_error()

Introduction: trigger_error() is used to trigger an error message under user-specified conditions. It is used with the built-in error handler or with user-defined functions created by the set_error_handler() function

12. PHP custom error handling function trigger_error ()_PHP

Introduction: trigger_error() is used to trigger an error message under user-specified conditions. It is used with the built-in error handler, and can also be used with user-defined functions created by the set_error_handler() function

13. Trigger PHP errors through trigger_error in PHP Example_PHP

Introduction: This article mainly introduces examples of triggering PHP errors through trigger_error in PHP. This article introduces the error suppressor @ and examples of triggering PHP errors through trigger_error. Friends in need can refer to

14. PHP Custom Error Handling Function trigger_error()_php Tips

Introduction :trigger_error() is used to trigger an error message under user-specified conditions. It is used with the built-in error handler, and can also be used with user-defined functions created by the set_error_handler() function

[Related Q&A recommendations]:

php - Why does echo realpath(RUNTIME_PATH); produce different results in the same method?

How can a custom function in PHP not throw an error when @ is included?