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sybase_set_message_handler
Manuál PHP
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sybase_set_message_handler

(PHP 4 >= 4.3.0, PHP 5)

sybase_set_message_handler -- Sets the handler called when a server message is raised

Description

bool sybase_set_message_handler ( callback handler [, resource connection] )

sybase_set_message_handler() sets a user function to handle messages generated by the server. You may specify the name of a global function, or use an array to specify an object reference and a method name.

Poznámka: Tato funkce je k dispozici pouze při použití rozhraní knihovny CT k Sybase, a ne knihovny DB.

The handler expects five arguments in the following order: message number, severity, state, line number and description. The first four are integers. The last is a string. If the function returns FALSE, PHP generates an ordinary error message.

Vrací TRUE při úspěchu, FALSE při selhání.

Poznámka: The connection parameter was added in PHP 4.3.5.

Příklad 1. sybase_set_message_handler() callback function

<?php
    function msg_handler($msgnumber, $severity, $state, $line, $text)
    {
        var_dump($msgnumber, $severity, $state, $line, $text);
    }
    
    sybase_set_message_handler('msg_handler');
?>

Příklad 2. sybase_set_message_handler() callback to a class

<?php
    class Sybase {
        function handler($msgnumber, $severity, $state, $line, $text)
        {
            var_dump($msgnumber, $severity, $state, $line, $text);
        }
    }
    
    $sybase= new Sybase();
    sybase_set_message_handler(array($sybase, 'handler'));
?>

Příklad 3. sybase_set_message_handler() unhandled messages

<?php
    // Return FALSE from this function to indicate you can't handle
    // this. The error is printed out as a warning, the way you're used
    // to it if there is no handler installed.
    function msg_handler($msgnumber, $severity, $state, $line, $text)
    {
        if (257 == $msgnumber) {
            return false;
        }
        var_dump($msgnumber, $severity, $state, $line, $text);
    }
    
    sybase_set_message_handler('msg_handler');
?>

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