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    User Contributed Notes 4 notes

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    39
    Juan Herrera
    13 years ago
    When using simplexml to access a element the returned object may be a SimpleXMLElement instead of a string.

    Example:

    <?php
    $string     = <<<XML
    <?xml version='1.0'?>
    <document>
    <cmd>login</cmd>
    <login>Richard</login>
    </document>
    XML;


    $xml = simplexml_load_string($string);
    print_r($xml);
    $login = $xml->login;
    print_r($login);
    $login = (string) $xml->login;
    print_r($login);
    ?>

    Expected result:
    ----------------
    SimpleXMLElement Object
    (
    [cmd] => login
    [login] => Richard
    )
    Richard
    Richard

    Actual result:
    --------------
    SimpleXMLElement Object
    (
    [cmd] => login
    [login] => Richard
    )
    SimpleXMLElement Object
    (
    [0] => Richard
    )
    Richard

    But this is an intended behavior. See http://bugs.php.net/bug.php?id=29500
    up
    -5
    mike at mike-griffiths dot co dot uk
    15 years ago
    It is important that you select the correct method of loading the XML in depending on the format of your XML file.

    If you use the wrong function to load it in you will get some strange errors.
    up
    -25
    Kari P.
    15 years ago
    To take care of proper error checking, one must use try-catch blocks:

    <?php
    try {
    $sxe = new SimpleXMLElement($xmlstring);
    } catch (    Exception $e) {
    echo     "bad xml";
    }
    ?>

    To get rid of warnings, use @ in front of new:

    <?php
    try {
    $sxe = @new SimpleXMLElement($xmlstring);
    } catch (    Exception $e) {
    echo     "bad xml";
    }
    ?>
    up
    -36
    info at accountr dot eu
    14 years ago
    Instead of using <?php eval($code) ?>

    you can use this method,

    <?php

    $node     = "node";

    $XML = simplexml_load_file($file);

    $text = (string)$XML->nodes->{$node}; // works
    // or
    $text2 = (string)$XML->{$node}->child; // also works fine

    ?>

    I think it is much more easier instead of eval().
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