[Beth Robson]

Question from chat room: can users use JSONP instead of PHP to serve content to web apps?

[edg]

This is an apples to oranges comparison.

PHP is a programming language. JSON is a data format. (http://en.wikipedia.org/wiki/JSON) JSONP is explained in the JSON wiki page and seems to me to be more of a technique, but this still requires a server side technology to return the results.

PHP was a (probably wise) choice for the class, since it's easy to deploy, but it's only to provide a server component that the newly developed apps can talk to.

In practice, the server component, should one be needed, could be written in PHP, Java, Perl, whatever, and could return JSON, JSONP, XML, plain text, or whatever the client (which is the subject of the class) requires and can handle.

[AverageJake]

This is an apples to oranges comparison.

PHP is a programming language. JSON is a data format. (http://en.wikipedia.org/wiki/JSON) JSONP is explained in the JSON wiki page and seems to me to be more of a technique, but this still requires a server side technology to return the results.

PHP was a (probably wise) choice for the class, since it's easy to deploy, but it's only to provide a server component that the newly developed apps can talk to.

In practice, the server component, should one be needed, could be written in PHP, Java, Perl, whatever, and could return JSON, JSONP, XML, plain text, or whatever the client (which is the subject of the class) requires and can handle.

Thank's edg for the great answer. Whoever asked this question, please let us know if this does not make sense.

Jake

[jerlin09]

Apache can be used to serve content to web applications.



Web Development Services

This post has been edited by jerlin09: 19 October 2010 - 10:12 PM

[Jireizo]

Not sure if I'm describing this correctly. At present, how to handle the ajax request is as follows:
An Ajax request is made, for example: / store / car /: ProductID / add to wit:
The product is added to the shopping MySQL users through
The data is returned new car and wrapped in a view in html
Javascript receiving the correct node and updates the page.

What's wrong with this approach? Seems pretty simple and effective. My partner tells me that is considered "old school" I am "2 years of delay" and saying that it is very slow compared to handle JSON leave.

Its methodology, if I understand correctly, it works as follows:
An Ajax request is made, for example: / store / car /: ProductID / add to wit:
The product is added to the shopping MySQL users through
New car data is returned and is encoded in json format
And it seems that JS is doing all the processing of HTML manipulation and data before updating the correct node.

I have little experience with their method, so do not really have an opinion on it that looks like a lot of unnecessary work that PHP can do so fast and with half the code. Does someone recognize or have experience in how to do this?
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[Maggies Daddy]

PHP files are not uploadable on most web servers. Im not sure about the JSONP.





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This post has been edited by Maggies Daddy: 27 November 2011 - 01:08 PM

[Velva]

I am facing the origin policy problem, and by researching the subject, I found that the best way for my particular project would be to use JSONP to do cross-origin requests.

I've been reading this article from IBM about JSONP, however I am not 100% clear on what is going on.

All I am asking for here, is a simple jQuery>PHP JSONP request (or whatever the terminology may be ) - something like this (obviously it is incorrect, its just so you can get an idea of what I am trying to achieve ):

jQuery:

$.post('http://MySite.com/MyHandler.php',{firstname:'Jeff'},function(res){
alert('Your name is '+res);
});
PHP:

<?php
$fname = $_POST['firstname'];
if($fname=='Jeff')
{
echo 'Jeff Hansen';
}
?>
How would I go about converting this into a proper JSONP request? And if I were to store HTML in the result to be returned, would that work too?