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POerror_get_last() and custom error handler
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copied!<p><a href="http://es.php.net/manual/en/function.odbc-errormsg.php" rel="nofollow"><code>odbc_errormsg</code></a> does not report error messages from <a href="http://php.net/odbc_execute" rel="nofollow"><code>odbc_execute</code></a> the way it's supposed to. It merely throws a warning. So I've been forced to write a hack to parse the error message via <a href="http://www.php.net/manual/en/function.error-get-last.php" rel="nofollow"><code>error_get_last</code></a>.</p> <p>I'm using <a href="http://www.php.net/manual/en/function.set-error-handler.php" rel="nofollow"><code>set_error_handler</code></a> and <code>error_get_last</code> returns <code>NULL</code> unless I either:</p> <ol> <li><p>disable my error handler,</p></li> <li><p>or make it return <code>FALSE</code>.</p></li> </ol> <p>I'd suppose this is due to PHP's builtin error handler taking care of storing the error details somewhere so they can be retrieved later.</p> <p><strong>Is there a way to emulate such behaviour in my custom error handler so <code>error_get_last()</code> can be used normally?</strong></p> <p><em>Please note I already know several ways to retrieve error info at any time. My question is how to make <code>error_get_last</code> usable.</em></p> <hr> <p><strong>Update:</strong> I think I'd better post some code.</p> <p>PHP has <code>error_get_last()</code>, which allows to do this:</p> <pre><code>@fopen('xxx'); var_dump( error_get_last() ); </code></pre> <p>... and get this:</p> <pre><code>array(4) { ["type"]=> int(2) ["message"]=> string(46) "fopen() expects at least 2 parameters, 1 given" ["file"]=> string(69) "C:\Documents and Settings\ALVARO.GONZALEZ\Mis documentos\tmp\test.php" ["line"]=> int(3) } </code></pre> <p>This breaks if you replace the builtin error handler:</p> <pre><code>function custom_error_handler($errno, $errstr, $errfile, $errline){ $ignore = ($errno & error_reporting()) == 0; if(!$ignore){ echo "[Error happened: $errstr]\n"; } return TRUE; } set_error_handler('custom_error_handler'); @fopen('xxx'); var_dump( error_get_last() ); // NULL </code></pre> <p>If you keep both error handlers...</p> <pre><code>function custom_error_handler($errno, $errstr, $errfile, $errline){ $ignore = ($errno & error_reporting()) == 0; if(!$ignore){ echo "[Error happened: $errstr]\n"; } return FALSE; } set_error_handler('custom_error_handler'); error_reporting(E_ALL); echo $foo; </code></pre> <p>... you get side effects:</p> <pre><code>[Error happened: Undefined variable: foo] Notice: Undefined variable: foo in C:\Documents and Settings\ALVARO.GONZALEZ\Mis documentos\tmp\test.php on line 15 Call Stack: 0.0004 329720 1. {main}() C:\Documents and Settings\ALVARO.GONZALEZ\Mis documentos\tmp\test.php:0 </code></pre> <p>... instead of just:</p> <pre><code>[Error happened: Undefined variable: foo] </code></pre> <p>I want to my custom error handler to interface properly with <code>error_get_last</code>. I want <code>error_get_last</code> to work fine.</p>

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