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    wddx_serialize_value

    (PHP 4, PHP 5, PHP 7)

    wddx_serialize_value — Serializează o singură valoare într-un pachet WDDX

    Avertizare

    Această funcție a fost ELIMINATĂ în PHP 7.4.0.

    Descrierea

    wddx_serialize_value ( mixed $var , string $comment = ? ) : string

    Creează un pachet WDDX dintr-o singură valoare transmisă.

    Parametri

    var

    Valoarea pentru a fi serializată

    comment

    Un string cu comentariu opțional, care apare în antetul pachetului.

    Valorile întoarse

    Întoarce pachetul WDDX, sau false în caz de eroare.

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    User Contributed Notes 1 note

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    -4
    chris at digitalbase dot com
    22 years ago
    When serializing JavaScript objects to interact with PHP objects, you should make the JavaScript object's first entry a php_class_name.

    PHP:
    class myclass {
        var $name;
        var $age;
        var $ssn;
        ...
       
        function myclass() {
            $this->name = "";
            $this->age = "";
            $this->ssn = "";
            ...
        }
    }

    JavaScript:
    // serialization example code is from the
    // WDDX SDK http://www.openwddx.org
    function SerializeMsg(name, age, ssn, ...) {
        var MyObj = new Object;
       
        // the following line is necessary in order
        // to deserialize back to a PHP object
        MyObj.php_class_name = "myclass";
       
        MyObj.name = name;
        MyObj.age = age;
        MyObj.ssn = ssn;
        ...
       
        // Create a new serializer "object" to do our work for us
        MySer = new WddxSerializer;

        // Serialize the Message variable into a WDDX Packet
        MyWDDXPacket = MySer.serialize(MyObj);

        // Output WDDX Packet so we can see what it looks like
        return MyWDDXPacket;
    }

    Now you can use this in a page which is its own form action:
    <?php
    // don't forget to include the class definition from above!
    if (!isSet($wddx_packet))
            $MyObj = new myclass();
    else
            $MyObj = wddx_deserialize($wddx_packet);
    ?>

    <html>
    <head>
    <script language="JavaScript">
    <!--
    function Init() {
        // sets the form's text-elements
        tmp = document.MyForm;
       
        tmp.name.value = "<? echo $MyObj->name ?>";
        tmp.age.value = "<? echo $MyObj->age ?>";
        tmp.ssn.value = "<? echo $MyObj->ssn ?>";
        ...
    }

    function SerializeMsg(name, age, ssn, ...) {
    // see above!
    }

    function SubmitForm() {
        // sumbits the form
        tmp = document.MyForm;
       
        tmp.wddx_packet.value =
        SerializeMsg(tmp.name.value, tmp.age.value, tmp.ssn.value,...);
        document.submit();
    }
    // -->
    </script>
    </head>
    <body>
    ...
    <form name="MyForm"
    action="<? echo $PHP_SELF ?>" method="post">
    <input name="wddx_packet" type="hidden">
    <input name="name" type="text">
    <input name="age" type="text">
    <input name="ssn" type="text">
    ...
    <input name="SubmitBtn" type="button" onclick="SumbitForm()">
    </form>
    </body>
    </html>

    ---------------------------------
    If you don't provide that first 'php_class_name' in the JavaScript function, then when PHP deserializes it will deserialize into an associative array and not an object instance.

    Note that this provides a way to maintain state without
    using sessions or cookies - just good old HTML!

    Hope this helps!
    --
    Chris Hansen
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