更新到 PHP 7 后 CodeIgniter CI_Exceptions::show_exception 错误
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CodeIgniter CI_Exceptions::show_exception error after updating to PHP 7
提问by Jatin Dhoot
I was using CodeIgniter 3.0.0 with PHP 5.6.
我在 PHP 5.6 中使用 CodeIgniter 3.0.0。
Yesterday I updated to PHP 7 and started getting following error:-
昨天我更新到 PHP 7 并开始出现以下错误：-
Uncaught TypeError: Argument 1 passed to CI_Exceptions::show_exception() must be
an instance of Exception, instance of Error given, called in /my/file/path/app/system/core/Common.php on line 658 and defined in /my/file/path/hgx_portal/app/system/core/Exceptions.php:190
Stack trace:
#0 /my/file/path/hgx_portal/app/system/core/Common.php(658): CI_Exceptions->show_exception(Object
(Error))
#1 [internal function]: _exception_handler(Object(Error))
#2 {main}
thrown in /my/file/path/hgx_portal/app/system/core/Exceptions.phpon line 190
回答by Garry Welding
This is a know issue in CodeIgniter 3.0.0, see the github issue hereand changelogbelow:
这是 CodeIgniter 3.0.0 中的一个已知问题，请参阅此处的 github 问题和下面的更改日志：
Fixed a bug (#4137) - :doc:
Error Handling <general/errors>breaks for the new Error exceptions under PHP 7.
修复了一个错误 (#4137) - :doc:
Error Handling <general/errors>打破 PHP 7 下的新错误异常。
It's because set_exception_handler() changed behaviorin PHP 7.
这是因为 set_exception_handler()在 PHP 7 中改变了行为。
Code that implements an exception handler registered with set_exception_handler() using a type declaration of Exception will cause a fatal error when an Error object is thrown.
If the handler needs to work on both PHP 5 and 7, you should remove the type declaration from the handler, while code that is being migrated to work on PHP 7 exclusively can simply replace the Exception type declaration with Throwable instead.
<?php // PHP 5 era code that will break. function handler(Exception $e) { ... } set_exception_handler('handler'); // PHP 5 and 7 compatible. function handler($e) { ... } // PHP 7 only. function handler(Throwable $e) { ... } ?>
使用 Exception 类型声明实现使用 set_exception_handler() 注册的异常处理程序的代码将在抛出 Error 对象时导致致命错误。
如果处理程序需要在 PHP 5 和 7 上运行，您应该从处理程序中删除类型声明，而正在迁移到专门用于 PHP 7 的代码可以简单地用 Throwable 替换 Exception 类型声明。
<?php // PHP 5 era code that will break. function handler(Exception $e) { ... } set_exception_handler('handler'); // PHP 5 and 7 compatible. function handler($e) { ... } // PHP 7 only. function handler(Throwable $e) { ... } ?>
Upgrading to anything beyond 3.0.2 will fix your issue.
升级到 3.0.2 以外的任何内容都可以解决您的问题。
回答by Silvio Delgado
This error is caused by PHP 7 (which throws Errorinstead Exceptionin set_exception_handlerfunction.
此错误是由PHP 7（其抛出引起Error代替Exception在set_exception_handler功能。
If you cannot do an upgrade the CodeIgniter system folder, you can just change the file system/core/Exceptions.phpat line 190:
如果您无法升级 CodeIgniter 系统文件夹，您可以更改文件system/core/Exceptions.php行190：
public function show_exception(Exception $exception)
To
到
public function show_exception($exception)
