php老提示 Undefined variable: 的解決方法
Jun 13, 2016 am 10:40 AM
php老提示 Undefined variable: 的解決辦法
$act=$_POST['act'];
用以上代碼總是提示
Notice: Undefined index: act in F:\windsflybook\post.php on line 18
另外,有時(shí)還會(huì)出現(xiàn)
引用內(nèi)容
Notice: Undefined variable: Submit ......
等一些這樣的提示
原因:由于變量未定義引起的
解決方法:
1) error_reporting設(shè)置:
找到error_reporting = E_ALL
修改為error_reporting = E_ALL & ~E_NOTICE
2) register_globals設(shè)置:
找到register_globals = Off
修改為register_globals = On
Notice: Undefined variable: email in D:\PHP5\ENOTE\ADDNOTE.PHP on line 9
Notice: Undefined variable: subject in D:\PHP5\ENOTE\ADDNOTE.PHP on line 9
Notice: Undefined variable: comment in D:\PHP5\ENOTE\ADDNOTE.PHP on line 9
........
本來php是不需要定義變量的,但是出現(xiàn)這種情況應(yīng)該怎么辦呢?
只要在C:\WINDOWS找出php.ini的
在php.ini中的302行 error_reporting = E_ALL
修改成
error_reporting = E_ALL & ~E_NOTICE再重啟apache2.2就行了
解決方法:修改php.ini
將: error_reporting = E_ALL
修改為:error_reporting = E_ALL & ~E_NOTICE
如果什么錯(cuò)誤都不想讓顯示,直接修改:
display_errors = Off
如果你沒有php.ini的修改權(quán)限,可在php頭部加入
ini_set("error_reporting","E_ALL & ~E_NOTICE");
即可

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