如何捕获 PHP 致命 (`E_ERROR`) 错误?

2022-01-30 00:00:00 php fatal-error

我可以使用 set_error_handler() 来捕获大多数 PHP 错误，但它不适用于致命 (E_ERROR) 错误，例如调用不不存在.还有其他方法可以捕获这些错误吗?

I can use set_error_handler() to catch most PHP errors, but it doesn't work for fatal (E_ERROR) errors, such as calling a function that doesn't exist. Is there another way to catch these errors?

我正在尝试为所有错误调用 mail() 并且正在运行 PHP 5.2.3.

I am trying to call mail() for all errors and am running PHP 5.2.3.

推荐答案

使用 register_shutdown_function 记录致命错误，这需要 PHP 5.2+:

Log fatal errors using the register_shutdown_function, which requires PHP 5.2+:

register_shutdown_function( "fatal_handler" );

function fatal_handler() {
    $errfile = "unknown file";
    $errstr  = "shutdown";
    $errno   = E_CORE_ERROR;
    $errline = 0;

    $error = error_get_last();

    if($error !== NULL) {
        $errno   = $error["type"];
        $errfile = $error["file"];
        $errline = $error["line"];
        $errstr  = $error["message"];

        error_mail(format_error( $errno, $errstr, $errfile, $errline));
    }
}

您必须定义 error_mail 和 format_error 函数.例如:

You will have to define the error_mail and format_error functions. For example:

function format_error( $errno, $errstr, $errfile, $errline ) {
    $trace = print_r( debug_backtrace( false ), true );

    $content = "
    <table>
        <thead><th>Item</th><th>Description</th></thead>
        <tbody>
            <tr>
                <th>Error</th>
                <td><pre>$errstr</pre></td>
            </tr>
            <tr>
                <th>Errno</th>
                <td><pre>$errno</pre></td>
            </tr>
            <tr>
                <th>File</th>
                <td>$errfile</td>
            </tr>
            <tr>
                <th>Line</th>
                <td>$errline</td>
            </tr>
            <tr>
                <th>Trace</th>
                <td><pre>$trace</pre></td>
            </tr>
        </tbody>
    </table>";
    return $content;
}

使用 Swift Mailer 编写 error_mail 函数.

Use Swift Mailer to write the error_mail function.

另见:

  • $php_errormsg
  • 预定义常量

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