http://us.php.net/manual/zh/function.set-error-handler.php
以下级别的错误不能由用户定义的函数来处理: E_ERROR、 E_PARSE、 E_CORE_ERROR、 E_CORE_WARNING、 E_COMPILE_ERROR、 E_COMPILE_WARNING,和在 调用 set_error_handler() 函数所在文件中产生的大多数 E_STRICT。
<code> /** * 自定义错误处理 * access public * @param int $errno 错误类型 * @param string $errstr 错误信息 * @param string $errfile 错误文件 * @param int $errline 错误行数 * return void */ static public function appError($errno, $errstr, $errfile, $errline) { switch ($errno) { case E_ERROR: case E_PARSE: case E_CORE_ERROR: case E_COMPILE_ERROR: case E_USER_ERROR: ob_end_clean(); $errorStr = "$errstr ".$errfile." 第 $errline 行."; if(C('LOG_RECORD')) Log::write("[$errno] ".$errorStr,Log::ERR); self::halt($errorStr); break; default: $errorStr = "[$errno] $errstr ".$errfile." 第 $errline 行."; self::trace($errorStr,'','NOTIC'); break; } } </code>
但是thinkPHP 的自定义错误方法却想处理这些错误,这怎么可能呢,所以这样设计就没有意义了是吧。
明知道没用,我不知道这样设计意义何在,求解释!
还有这个问题:http://segmentfault.com/q/1010000002703753/a-1020000002703757 我理解是对的吧。
回复内容:
http://us.php.net/manual/zh/function.set-error-handler.php
以下级别的错误不能由用户定义的函数来处理: E_ERROR、 E_PARSE、 E_CORE_ERROR、 E_CORE_WARNING、 E_COMPILE_ERROR、 E_COMPILE_WARNING,和在 调用 set_error_handler() 函数所在文件中产生的大多数 E_STRICT。
<code> /** * 自定义错误处理 * access public * @param int $errno 错误类型 * @param string $errstr 错误信息 * @param string $errfile 错误文件 * @param int $errline 错误行数 * return void */ static public function appError($errno, $errstr, $errfile, $errline) { switch ($errno) { case E_ERROR: case E_PARSE: case E_CORE_ERROR: case E_COMPILE_ERROR: case E_USER_ERROR: ob_end_clean(); $errorStr = "$errstr ".$errfile." 第 $errline 行."; if(C('LOG_RECORD')) Log::write("[$errno] ".$errorStr,Log::ERR); self::halt($errorStr); break; default: $errorStr = "[$errno] $errstr ".$errfile." 第 $errline 行."; self::trace($errorStr,'','NOTIC'); break; } } </code>
但是thinkPHP 的自定义错误方法却想处理这些错误,这怎么可能呢,所以这样设计就没有意义了是吧。
明知道没用,我不知道这样设计意义何在,求解释!
还有这个问题:http://segmentfault.com/q/1010000002703753/a-1020000002703757 我理解是对的吧。
谢邀,我不是ThinkPHP用户,只能猜测一下。
这样设计的意义在于框架中使用trigger_error()触发一个用户级别的错误后,使用用户定义的函数产生对开发者友好的输出。
至于为什么会判断E_ERROR、 E_PARSE、 E_CORE_ERROR、E_COMPILE_ERROR我猜可能是作者想多了。
这个设计应该没有问题,很多框架都是自己管理捕获错误。优势是开发和线上你可以自己控制错误的显示信息,其次通过日志便于定位错误。
以下级别的错误不能由用户定义的函数来处理: E_ERROR、 E_PARSE、 E_CORE_ERROR、 E_CORE_WARNING、 E_COMPILE_ERROR、 E_COMPILE_WARNING,和在 调用 set_error_handler() 函数所在文件中产生的大多数 E_STRICT。
测试了一下,ob_start()系列函数不能控制以上级别的错误输出,并且以上级别的错误也不能由用户来触发,即不能使用trigger_error触发。
实在不好意思,我不是 ThinkPHP 用户,也不喜欢这个东西,所以,没法儿帮到你哈

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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