Showing all errors and warnings
更新2:
我现在已经从.php文件中删除了以下内容:
1 |
我在php.in i中设置了如下显示错误:
display_errors = On
php.ini中的错误报告设置如下
error_reporting = E_ALL | E_STRICT
重新启动Apache之后,我仍然没有收到任何错误/警告。
更新1:
我已将php.in i中的错误报告更改为:
error_reporting = E_ALL &
~E_DEPRECATED
到
error_reporting = E_ALL | E_STRICT
之后我重新启动了Apache,例如
/etc/init.d/apache2 restart
但是页面仍然不会显示任何类型的错误/警告。
原始问题:
以下脚本正在生成警告,因为$err在if语句中。为什么这个警告没有显示在Web浏览器的PHP页面上?我必须查看Apache日志才能看到警告。另外,如果我故意将"insert into"更改为"delete into",它不会在PHP页面上显示错误。为什么错误没有显示在实际的PHP页面上?
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 | <?php error_reporting( E_ALL ); ?> <html> <head> <link rel="icon" type="image/png" href="favicon.ico"> <?php if( $_SERVER['REQUEST_METHOD']=='POST' ) { $err = array(); if( empty( $_POST['display_name'] ) ) $err[] ="display name field is required"; if( empty( $_POST['email'] ) ) $err[] ="email field is required"; if( empty( $_POST['password'] ) ) $err[] ="password field is required"; if( !$err ) { try { $DBH = new PDO("mysql:host=localhost;dbname=database1","user","pass" ); $DBH -> setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION ); $STH = $DBH -> prepare("delete into table1 (display_name, email, password) values ( :display_name, :email, :password )" ); $STH -> bindParam( ':display_name', $_POST['display_name'], PDO::PARAM_STR, 100 ); $STH -> bindParam( ':email', $_POST['email'], PDO::PARAM_STR, 100 ); $STH -> bindParam( ':password', $_POST['password'], PDO::PARAM_STR, 100 ); $STH -> execute(); $STH = $DBH -> prepare("delete into table2 ( username, status, users_id ) values ( :username, :status, :users_id )" ); $strStatus = 1; $STH -> bindParam( ':username', $_POST['display_name'], PDO::PARAM_STR, 100 ); $STH -> bindParam( ':status', $strStatus, PDO::PARAM_INT, 1 ); $STH -> bindParam( ':users_id', $_POST['referer'], PDO::PARAM_INT, 1 ); $STH -> execute(); $DBH = null; } catch( PDOException $e ) { echo $e -> getMessage(); } header("Location:".$_SERVER['PHP_SELF'] ); exit; } else { foreach( $_POST as $key => $val ) { $form[$key] = htmlspecialchars($val); } } } else { $form['display_name'] = $form['email'] = $form['password'] = ''; } ?> </head> <body> <?php foreach( $err as $line ) { ?> <?php echo $line; ?> <?php } ?> register <form method="post"> referers id:<br /> <input type="text" name="referer" /><br /><br /> name:<br /> <input type="text" name="display_name" value="<?php echo $form['display_name']; ?>" /><br /><br /> email:<br /> <input type="text" name="email" value="<?php echo $form['email']; ?>" /><br /><br /> password:<br /> <input type="text" name="password" value="<?php echo $form['password']; ?>" /><br /><br /> <input type="submit" value="register" /> </form> </body> </html> |
显示错误可能在
您可以在脚本中打开它:
1 2 |
您应该在PHP错误日志中看到相同的消息。
直接从php.ini文件:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; Error handling and logging ; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; This directive informs PHP of which errors, warnings and notices you would like ; it to take action for. The recommended way of setting values for this ; directive is through the use of the error level constants and bitwise ; operators. The error level constants are below here for convenience as well as ; some common settings and their meanings. ; By default, PHP is set to take action on all errors, notices and warnings EXCEPT ; those related to E_NOTICE and E_STRICT, which together cover best practices and ; recommended coding standards in PHP. For performance reasons, this is the ; recommend error reporting setting. Your production server shouldn't be wasting ; resources complaining about best practices and coding standards. That's what ; development servers and development settings are for. ; Note: The php.ini-development file has this setting as E_ALL. This ; means it pretty much reports everything which is exactly what you want during ; development and early testing. ; ; 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 error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT |
对于纯开发,我赞成:
1 |
也别忘了把显示错误设为开。
1 | display_errors = On |
之后,在Ubuntu上重新启动Apache服务器:
1 | sudo /etc/init.d/apache2 restart |
我可以通过以下代码获得所有错误:
1 2 3 |
PHP错误可以显示为以下任何一种方法:
1 2 3 |
有关详细信息:
http://www.howtofindit.in/displaying-php-errors/
在
1 2 3 4 | ;display_startup_errors = On display_startup_errors=off display_errors =on html_errors= on |
从PHP页面使用适当的过滤器进行错误报告。
1 |
可根据需要制作文件归档机。
1 2 | E_ALL E_ALL | E_STRICT |
您可以在这里看到详细的描述。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | // Report simple running errors error_reporting(E_ERROR | E_WARNING | E_PARSE); // Reporting E_NOTICE can be good too (to report uninitialized // variables or catch variable name misspellings ...) error_reporting(E_ERROR | E_WARNING | E_PARSE | E_NOTICE); // Report all errors except E_NOTICE error_reporting(E_ALL & ~E_NOTICE); // Report all PHP errors (see changelog) error_reporting(E_ALL); // Report all PHP errors error_reporting(-1); // Same as error_reporting(E_ALL); ini_set('error_reporting', E_ALL); |
Changelog
-
5.4.0 E_STRICT became part of E_ALL
-
5.3.0 E_DEPRECATED and E_USER_DEPRECATED introduced.
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5.2.0 E_RECOVERABLE_ERROR introduced.
-
5.0.0 E_STRICT introduced (not part of E_ALL).