Hiding error messages - custom

**grantus** · Jun 28, 2003, 16:56

Hi,

Right now I have my pages in PHP (no database) with 3 includes: header, nav, and footer. Once in a while I've had errors with PHP on my site (various reasons) and I got those messy, long error messages. I was browsing around here and saw something that said all I have to put in my include is add "@". So my include would be
< include @ "header.php">

That works fine, when there's an error it just doesn't show my header at all. My question is though, how can I set it so that instead of not showing anything at all, it shows a custom error message like CANNOT BE DISPLAYED. Or something like that.

Any suggestions? Thanks.

**Dr Livingston** · Jun 28, 2003, 17:34

Umm... To help you out here is what I use and it works fine for a number of errors you might pick up:

Place the following below in pages where you want error trapping/reporting:

PHP Code:


error_reporting(0);

    

    function errorHandler($errno, $errmsg, $filename, $linenum) {

        # create array to hold type of error

        $errorType = array (

            1       =>  "Error",

            2       =>  "Warning",

            4       =>  "Parsing Error",

            8       =>  "Notice",

            16      =>  "Core Error",

            32      =>  "Core Warning",

            64      =>  "Compile Error",

            128     =>  "Compile Warning",

            256     =>  "User Error",

            512     =>  "User Warning",

            1024    =>  "User Notice");

            

        $userError = array(E_USER_ERROR, E_USER_WARNING, E_USER_NOTICE);

        

        if(in_array($errno, $userError)) {    

            # found an error so alert user

            header('location:errors.php?msg=' . $errmsg .'&name=' . basename($filename) . '&num=' . $linenum . '&type=' . $errorType[$errno]);

        }

    }

    

    # define error handler

    $error_handler = set_error_handler("errorHandler");

Next, to detect for an error, ie if a file INCLUDE isn't working, I use this:

NOTE: In this very case, I am checking to see if an OOP class has been INCLUDEd or not; report error if it's not.

PHP Code:


#

    @ include_once(MAIN_DIRECTORY .'main.class.php');

    if(!class_exists('mySQLAccess')) {

        trigger_error('unable to install: main.class.php', E_USER_WARNING);

        return false;

    }

So once re-directed to 'errors.php' the error message is passed via the URL (ie $_GET['...']) and displayed; errors.php file now follows below:

PHP Code:


<head>

    <title> Error Report </title>

    <link rel="stylesheet" type="text/css" href="templates/style.css" />

</head>

<body leftmargin="0" topmargin="12" marginwidth="0" marginheight="12">

    <table border="0" width="992" height="100%" align="center" valign="center" cellspacing="0" cellpadding="0">

    <tbody>

    <tr>

    <td height="50%">&nbsp;</td></tr>

    <tr>

    <td align="center" valign="center" width="100%" height="64">

    

        <table style="border:solid 1px rgb(144, 184, 175);background-color:rgb(223, 239, 208);" border="0" width="75%" align="center" height="192" valign="center" cellspacing="0" cellpadding="0">

        <tbody>

        <tr>

        <td align="center" valign="top" width="100%" height="16">

        <b>ERROR REPORT - <?php echo(strtoupper($_GET['type'])); ?></b>

        </td></tr>

        <td align="center" valign="center" width="100%" height="100%">

        <p>An error has occured with this application.</p>

        <p><b><?php echo(strtoupper($_GET['msg'])); ?></b></p>

        <p>The error originated from file <b><?php echo($_GET['name']); ?></b> at line number <b><?php echo($_GET['num']); ?></b></p>

        <p>This error has now been logged - if it persists, please report this error to your administrator.</p>

        <p><button onClick='window.location="index.php?comm=admin";'>Go Back</button></p>

        </td></tr>

        </tbody></table>

    

    </td></tr>

    <tr>

    <td height="50%">&nbsp;</td></tr>

    </tbody></table>

    <?php 

    # log error to file

    $date = date('Y-m-d H:i:s');

    $mess = $date . " [File: " . $_GET['name'] . " - on line " . $_GET['num'] . "; " . $_GET['msg'] . " - Level: " . $_GET['type'] . "]\r\n";

    # logging...

    if($fp = @ fopen('logs/error-log.txt', "a+")) {

        @ fputs($fp, $mess);

        @ fclose($fp);

    }

    ?>

</body></html>

And there you have it. Another way of doing it (not shown) is to use output buffering, though I'll leave you with this stuff which'll keep you busy for just now.

Enjoy.