PHP error_reporting 很不理解。。。

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这是一个创建于 3145 天前的主题，其中的信息可能已经有所发展或是发生改变。

$aaa 是一个没有定义过的变量，下面两种情况一个报错一个不报错，奇怪。。。

// 不报错
if ($aaa) {}

// 报： Undefined variable: aaaa
if ($aaa)

7 条回复 • 2016-04-05 14:27:28 +08:00

UnisandK

2016-04-05 14:10:41 +08:00

Nicksxs

2016-04-05 14:11:45 +08:00

@UnisandK 这是什么 ide

UnisandK

2016-04-05 14:13:19 +08:00

@Nicksxs https://coderunnerapp.com/

dapang1221

2016-04-05 14:14:35 +08:00

刚刚试了下， if ($aaa) {} 也会报啊……

dapang1221

2016-04-05 14:16:09 +08:00

散了散了，题主傻了……

whatisnew

2016-04-05 14:26:11 +08:00

@dapang1221 抱歉，是用的框架的问题，哈哈

gordon1986

2016-04-05 14:27:28 +08:00

跟你 php.ini 的 error_reporting 有关。
; Error Level Constants:
; E_ALL - All errors and warnings (includes E_STRICT as of PHP 5.4.0)
; E_ERROR - fatal run-time errors
; E_RECOVERABLE_ERROR - almost fatal run-time errors
; E_WARNING - run-time warnings (non-fatal errors)
; E_PARSE - compile-time parse errors
; E_NOTICE - run-time notices (these are warnings which often result
; from a bug in your code, but it's possible that it was
; intentional (e.g., using an uninitialized variable and
; relying on the fact it is automatically initialized to an
; empty string)
; E_STRICT - run-time notices, enable to have PHP suggest changes
; to your code which will ensure the best interoperability
; and forward compatibility of your code
; E_CORE_ERROR - fatal errors that occur during PHP's initial startup
; E_CORE_WARNING - warnings (non-fatal errors) that occur during PHP's
; initial startup
; E_COMPILE_ERROR - fatal compile-time errors
; E_COMPILE_WARNING - compile-time warnings (non-fatal errors)
; E_USER_ERROR - user-generated error message
; E_USER_WARNING - user-generated warning message
; E_USER_NOTICE - user-generated notice message
; E_DEPRECATED - warn about code that will not work in future versions
; of PHP
; E_USER_DEPRECATED - user-generated deprecation warnings
;
; Common Values:
; E_ALL (Show all errors, warnings and notices including coding standards.)
; E_ALL & ~E_NOTICE (Show all errors, except for notices)
; E_ALL & ~E_NOTICE & ~E_STRICT (Show all errors, except for notices and coding standards warnings.)
; E_COMPILE_ERROR|E_RECOVERABLE_ERROR|E_ERROR|E_CORE_ERROR (Show only errors)
; Default Value: E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED
; Development Value: E_ALL
; Production Value: E_ALL & ~E_DEPRECATED & ~E_STRICT
; http://php.net/error-reporting