How to receive XMLHttpRequest with PHP?

php xml ajax xmlhttprequest prototypejs

10,749

Solution 1

You will read it exactly the sme way you read normal request vars.

$_GET['varname'] and $_POST['varname']

Solution 2

php://input allows you to read raw POST data like

Welcome <?php print(file_get_contents('php://input')); ?>!<br />

Note: php://input is not available with enctype="multipart/form-data".

Solution 3

You could use fopen() with the input:// wrapper or $HTTP_RAW_POST_DATA.

Solution 4

When you use "method: post" and you want to send a post body, you need the parameter postBody. So something like this might work:

var myAjax = new Ajax.Request('http://localhost:8080/post2.php',{
    contentType: 'text/xml',
    postBody: xml,
    method: 'post',
    onSuccess: function(transport){
        alert(transport.status); alert(transport.responseText);
    }
});

But why did you build a XML doc around your content? You can simply sent the message "heya there" with the postBody without the XML arround.

Edit: Here you'll find all the Ajax.Request options: http://www.prototypejs.org/api/ajax/options

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10,749

Author by

screenshot345

Updated on June 26, 2022

Comments

screenshot345 almost 2 years
I would like to be able to read XMLHttpRequest that is sent to a PHP page. I am using prototype's Ajax.Request function, and I am sending a simple XML structure.

When trying to print the POST array on the PHP page, I don't get any output.

Any help appreciated.

EDIT: Below is my code
```
<html>
<head>

<SCRIPT type="text/javascript" src="prototype.js"></script>

</head>
<body>

<script type="text/javascript">

var xml='<?xml version=1.0 encoding=UTF-8?>';
xml=xml+'<notification>';
xml=xml+'heya there';
xml=xml+'</notification>';
xml=xml+'</xml>';


var myAjax = new Ajax.Request('http://localhost:8080/post2.php',{
    contentType: 'text/xml',
    parameters: xml,
    method: 'post',
    onSuccess: function(transport){ alert(transport.status); alert(transport.responseText); }
});

</script>

</body>
</html>
```
post2.php
```
Welcome <?php print_r($_POST); ?>!<br />
```
- screenshot345 almost 14 years
  
  Thanks for your reply, please see the edit above for the code.
- Joseph almost 14 years
  
  So you are getting Welcome Array()! as your result?
- screenshot345 almost 14 years
  
  Yes Joseph, thats exactly what I'm getting. I was hoping to get the xml back. This needs to be an text/xml content type due to the server that I am forced to use.
screenshot345 almost 14 years

Unless I'm doing something wrong, I get nothing but an empty array when I print_r $_POST. In my ajax call, my parameter should only be the xml string in the format '<xml>...</xml>, right? Thank you for your input.
chris12892 almost 14 years

You might try to print_r($_GET), just to see if somehow it's getting send via GET.
Joseph almost 14 years

What the Col is referring to is here: us2.php.net/manual/en/…
tony gil almost 9 years

$rawData=file_get_contents('php://input'); // pERFECT upvoted :)
tony gil almost 9 years

like @Adrian i got an empty string.
Mark Carpenter Jr over 6 years

Straight from the documentation, "Warning This feature was DEPRECATED in PHP 5.6.0, and REMOVED as of PHP 7.0.0."