显示所有错误和警告-Java 学习之路

325

UPDATE 2:

我现在已从.php文件中删除了以下内容：

<?php error_reporting( E_ALL ); ?>

我在php.ini中设置了display_erros，如下所示：

display_errors = On

错误报告在php.ini中设置为以下内容

error_reporting = E_ALL | E_STRICT

重启apache后，我仍然没有错误/警告 .

UPDATE 1:

我在php.ini中更改了error_reporting：

error_reporting = E_ALL＆~E_DEPRECATED

至

error_reporting = E_ALL | E_STRICT

之后我重新启动了apache，例如

/etc/init.d/apache2重启

但页面仍然不会显示任何类型的错误/警告 .

ORIGINAL QUESTION:

以下脚本正在生成警告，因为$ err位于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”，则不会在PHP页面上显示错误 . 为什么错误不显示在实际的PHP页面上？

<?php
    error_reporting( E_ALL );
?>

<html>
    <head>
        <title></title>
        <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 ) { ?>
        <div style="error"><?php echo $line; ?></div>
        <?php } ?>

        <h1>register</h1>

        <form method="post">
            referers id:

            <input type="text" name="referer" />



            name:

            <input type="text" name="display_name" value="<?php echo $form['display_name']; ?>" />



            email:

            <input type="text" name="email" value="<?php echo $form['email']; ?>" />



            password:

            <input type="text" name="password" value="<?php echo $form['password']; ?>" />



            <input type="submit" value="register" />
        </form>
    </body>
</html>

6 回答

908
可以在 php.ini 或您的Apache配置文件中关闭显示错误 .

您可以在脚本中打开它：
```
error_reporting(E_ALL);
ini_set('display_errors', 1);
```
您应该在PHP错误日志中看到相同的消息 .
回复于 2024-05-15T18:22:21+08:00
13
在 php.ini 设置这些
```
;display_startup_errors = On
display_startup_errors=off
display_errors =on
html_errors= on
```
从您的php页面使用合适的过滤器进行错误报告 .
```
error_reporting(E_ALL);
```
可根据要求制作文件夹 .
```
E_ALL
E_ALL | E_STRICT
```
回复于 2024-05-15T18:22:21+08:00

你可以看到详细的描述here .

// 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);

更改日志

5.4.0 E_STRICT成为E_ALL的一部分
5.3.0 E_DEPRECATED和E_USER_DEPRECATED介绍 .
5.2.0 E_RECOVERABLE_ERROR介绍 .
5.0.0引入了E_STRICT（不是E_ALL的一部分） .

回复于 2024-05-15T18:22:21+08:00

26
通过以下代码，我能够得到所有错误： -
```
ini_set('display_startup_errors',1);
ini_set('display_errors',1);
error_reporting(-1);
```
回复于 2024-05-15T18:22:21+08:00

直接从php.ini文件：

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; 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

对于纯粹的开发，我会去：

error_reporting = E_ALL ^ E_NOTICE ^ E_WARNING

另外不要忘记将display_errors置于打开状态

display_errors = On

之后在Ubuntu上重启服务器以获取apache：

sudo /etc/init.d/apache2 restart

回复于 2024-05-15T18:22:21+08:00

1
Php错误可以显示为以下任何方法：
```
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
```
更多细节：

http://www.howtofindit.in/displaying-php-errors/
回复于 2024-05-15T18:22:21+08:00

显示所有错误和警告

6 回答

相关问题