how to pass javascript callback response into php
Question
how to pass the callback javascript response to php if let's say i'm in a single php file ?. here's a sample snippet of eg test.php
<html>
<head>
<script>
var _somestuff = _somestuff || [];
(function () {
_somestuff.push(['id', blahblah], ['setApiKey', "blahblah"]
);
var d = document, g = d.createElement('script'), s = d.getElementsByTagName('script')[0];
g.type = 'text/javascript';
g.defer = true;
g.async = true;
g.src = 'blahblah.js';
s.parentNode.insertBefore(g, s);
})();
function myCallback(response)
{
if (response !== undefined) {
var data = JSON.parse(response);
var item_ids = data.items;
console.log(item_ids);
}
}
_somestuff.push(['blahblah',"001124","blahblah","myCallback"]);
</script>
</head>
<body>
</body>
</html>
what I want to happen is, display the data or the item_ids inside the html body using php.. how to do that?, i'm in a single page, I don't want to use ajax or whatever,is that possible ?
2 answers
solution1
1 2015-10-01 02:25:29
IF PHP and your JS are in the same page
- You need to use AJAX (to send a POST to the same page)
- In order to make PHP respond with some data but not with the same whole document you need to put
exit;in the last line of your PHP code - (Your PHP code has to be at the top of the same document.)
PSEUDO:
<?php
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
if(isset($_POST["someData"])) {
// Do some stuff with someData
// return /*anything you need*/; // this return will be collected by the AJAX success
}
}
exit; // Prevents the AJAX to return the whole document (with HTML etc)
?>
<html>
<head>
<script>
// JS AJAX POST someData TO PHP (use the same url)
// on success use the returned data by the PHP's `return`
</script>
</head>
<body>
</body>
</html>
solution2
0 ACCPTED 2015-10-02 02:54:04
I solved the my issue by assigning the myCallback function to a variable like
var a = function myCallback(response)
{
if (response !== undefined) {
var data = JSON.parse(response);
var item_ids = data.items;
console.log(item_ids);
}
};
then passed the variable to
_somestuff.push(['blahblah',"001124","blahblah",a]);
then inside the myCallback if condition, I just manipulated the html there and loaded the data response :)
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