Re: Mangled Data

[email protected] (Glash Gnome) Sat, 16 Oct 2021 05:43:14 +0200
Newsgroups	php.general
Message-ID	<CADeZBNa7zm4mGKvxD+dU4+YAV92zyfX9_KM5fA7n8cWuSG0d5w@mail.gmail.com>
Hello,

Can you modify this example to show the issue ?

<?php
//var_dump($_POST);
if (isset($_POST['data'])) {
    var_dump($_POST['prop']);
    var_dump(json_decode($_POST['prop-a']));
    var_dump(json_decode($_POST['prop-b']));
}
?><html>
    <form method="post">
        <input name="prop[]" value="This" />
        <input name="prop[]" value="Is" />
        <input name="prop[]" value='"Array"' />

        <input name="prop-a" value="Hello" id="element" />

        <textarea name="prop-b" rows="4" cols="50">{
    "a": "str='hello'",
    "b": 2
}</textarea>
        <input name="data" value='"Submit !"' type="submit"/>
    </form>
    <script type="text/javascript">
        let playlist = {
            'DADJU & ANITTA' : "let's go \"mon soleil\"",
        };
        var elt = document.getElementById('element');
        elt.value = JSON.stringify(playlist);
    </script></html>

Regards,

Le sam. 16 oct. 2021 à 01:55, John <[email protected]> a écrit :

> PHP 7.2.9
>
> An incoming JSON string is not acted on in this script; just passed
> through to the next script. I do the following, where 'trans' is a
> JSON string:  (ie result of JavaScript stringify() command)
>
> if (isset($_POST['trans']))
> {
>  $ord_jdata = $_POST['trans'];
>
> ....
>
> <form method="POST" name="order" id="order" onSubmit="finished()"
> action="....>
> <input type="hidden" name="trans-1" id="trans-1" value= <?php echo
> $ord_jdata ?> >
> </form>
>
> When this is submitted the data stored in form.trans-1 is NOT the same
> as the data in $ord.jdata, specifically the following component, as
> shown by the Firefox devtools | inspector command no longer has the
> escape \ before the " character.
>
> The JSON data contains a string (part of an array) that, when received
> is:
> ... ,\"name\":'"some data is found here\", ...
> but this is stored in the form input field as:
> ... ,\"some" data="" is="" found="" here=\",
>
> which is not at all the same thing.  Apparently the spaces within the
> string are being treated as delimiters for null parameters.
>
> Experimenting, I can do a valid/correct json_decode on the incoming
> data; it just doesn't copy properly.
>
> After reading the JSON part of the PHP manual I can't see why this
> should be so and I suspect that I have run over some constarint on
> data formatting but I don't see it.
>
> Can anyone help??
>
> Thanks in advance.
>
> John
> ============
>