【问题标题】:Showing all errors and warnings [duplicate]显示所有错误和警告 [重复]
【发布时间】:2011-07-23 05:21:54
【问题描述】:

更新 2:

我现在从 .php 文件中删除了以下内容:

<?php error_reporting( E_ALL ); ?>

我在 php.ini 中设置 display_erros 如下:

display_errors = 开启

php.ini 中的错误报告设置如下:

error_reporting = E_ALL | E_STRICT

重新启动 Apache 后,我仍然没有收到任何错误/警告。

更新 1:

我已将 php.ini 中的 error_reporting 更改为:

error_reporting = E_ALL & ~E_DEPRECATED

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。

原始问题:

以下脚本正在生成警告,因为 $err 在 if 语句中。为什么在 Web 浏览器的 PHP 页面上没有显示此警告?

我必须查看 Apache 日志才能看到警告。另外,如果我故意将“插入”更改为“删除”,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?

<?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:<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>

【问题讨论】:

  • display_errorsINI 设置的当前值是多少?
  • 我刚刚检查并设置为 error_reporting = E_ALL & ~E_DEPRECATED
  • 请重新阅读我的问题,我们已经知道您的error_reporting 设置,因为它在脚本中。
  • 请参阅原始问题中的 UPDATE 1:
  • 请重新阅读我的问题。 display_errorserror_reporting 完全不同。此外,您的脚本会覆盖 INI 文件中设置的 error_reporting 值。

标签: php debugging warnings


【解决方案1】:

可以在 php.ini 或您的 Apache 配置文件中关闭显示错误。

你可以在脚本中开启它:

error_reporting(E_ALL);
ini_set('display_errors', '1');

您应该会在 PHP 错误日志中看到相同的消息。

【讨论】:

  • 更改php.ini文件后需要重启apache吗?
  • 这个问题已经发布stackoverflow.com/questions/1053424/…
  • @oshirowanen ini_set() 实际上并没有改变php.ini 文件,脚本只是像php.ini 中设置的那样“行动”... 来自手册: Sets the value of the given configuration option. The configuration option will keep this new value during the script's execution , and will be restored at the script's ending .
  • 我不知道我有多少次得到相同的答案。你帮了我很多。谢谢! :)
  • @Charles 为什么E_ALL 会删除E_NOTICE? E_ALL 本身不包括所有内容,包括 E_NOTICE 吗?
【解决方案2】:

我能够通过以下代码得到所有错误:

ini_set('display_startup_errors', 1);
ini_set('display_errors', 1);
error_reporting(-1);

【讨论】:

  • 仅适用于我的服务器 (IONOS) 的代码
  • error_reporting(-1); 不应使用。它可能不适用于每个系统。而应该是error_reporting(E_ALL);
  • error_reporting(-1) 应该可以正常工作,因为这里给出了示例:php.net/manual/en/function.error-reporting.php
  • ini_set 的值实际上应该是字符串,例如 ini_set('display_errors', '1'); 根据documentation 并且在使用strict typing 时这是强制(例如,@987654329 @)
【解决方案3】:

直接来自 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
```lang-none

For pure development I go for:

```lang-none
    error_reporting = E_ALL ^ E_NOTICE ^ E_WARNING

别忘了打开 display_errors

display_errors = On

之后,在 Ubuntu 上为 Apache 重新启动服务器:

sudo /etc/init.d/apache2 restart

【讨论】:

  • “PHP 6.0.0”?呵呵 :-)
  • “对于纯开发@JohnMagnolia go[es] for:error_reporting = E_ALL ^ E_NOTICE ^ E_WARNING。” ^ 符号是否连接三个选项?如果是这样,E_ALL 不是已经包含E_NOTICEE_WARNING了吗?
【解决方案4】:

PHP 错误可以通过以下任何一种方式显示:

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

更多详情:

Displaying PHP errors

【讨论】:

  • PHP 文件中的display_errors = on;syntax error
【解决方案5】:

php.ini上设置这些:

;display_startup_errors = On
display_startup_errors=off
display_errors =on
html_errors= on

在您的 PHP 页面中,使用合适的过滤器进行错误报告。

error_reporting(E_ALL);

可根据需要制作文件。

E_ALL
E_ALL | E_STRICT

【讨论】:

    【解决方案6】:

    可以看详细说明here

    ini_set('display_errors', 1);
    
    // 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);
    

    更新日志

    • 5.4.0 E_STRICT 成为 E_ALL 的一部分

    • 5.3.0 引入了 E_DEPRECATED 和 E_USER_DEPRECATED。

    • 5.2.0 引入了 E_RECOVERABLE_ERROR。

    • 5.0.0 引入了 E_STRICT(不是 E_ALL 的一部分)。

    【讨论】:

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