Unable to pass javascript array to php using ajax
Question
I have the following code to pass a Javascript array to PHP using ajax :
in HTML :
echo "<input type=\"hidden\" id= \"que_id\" name= \"que_id[]\" value=".$questions['que_id'].">";
This is inside a loop.
in Javascript :
var que_id_array = new Array();
$('input[name="que_id[]"]').each(function(){
que_id_array.push($(this).val());
});
AJAX Call :
$.ajax({
type:"POST",
url: 'questionmastermodify.php',
data: { que_id:que_id_array},
success: function(data) {
$('.my_update_panel').html(data);
$('#overlay').fadeOut();
}
});
in PHP :
$que_id = $_REQUEST['que_id'];
echo count($que_id);
The count displays 1 and not the size of the array, whereas in Javascript the console shows :
console.log(que_id_array);
output :
["151", "152", "153", "154", "155", "156", "157", "158", "159", "160", "161", "162", "163", "164", "165", "166", "167", "168", "169", "170", "171", "172", "173", "174", "175", "176", "177", "178", "179", "180", "181", "182", "183", "184", "185", "186", "187", "188", "189", "190", "191", "192", "193", "194", "195", "196", "197", "198", "199", "200"]
I am stuck as i need this array in PHP but unable to pass this array from JS to PHP.
Thanks in advance....
Sandy505
3 answers
solution1
2 ACCPTED 2013-10-14 10:09:04
I made a quick test with your code... and with a few changes, It work's for me.
Take a look at your code, specially the loop when you create the <input> fields...
And also.. in the loop you have an ID in the <input> ... that's not good at all!.. change it for class for example...
As an example, this is what I tried:
Main PHP
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Document</title>
<script src="http://code.jquery.com/jquery-1.9.0.min.js"></script>
<script type="text/javascript">
jQuery(document).ready(function() {
$('#theForm').submit(function(event) {
event.preventDefault();
createTheArray();
});
});
function createTheArray(){
// Create the Array
var que_id_array = new Array();
$('input[name="que_id[]"]').each(function(){
que_id_array.push($(this).val());
});
console.log(que_id_array); // output ["151", "152", "153"]
sendTheForm(que_id_array); // do the ajax call
}
function sendTheForm(que_id_array){
// AJAX Call
$.ajax({
type:"POST",
url: 'questionmastermodify.php',
data: { que_id:que_id_array},
success: function(data) {
$('.my_update_panel').html(data);
}
});
}
</script>
</head>
<body>
<form id="theForm">
<?php
// your original Array
$arrayName = array(
array('que_id' => '151'),
array('que_id' => '152'),
array('que_id' => '153')
);
foreach ($arrayName as $key => $questions) {
echo "<input type='text' class='que_id' name='que_id[]' value='{$questions['que_id']}'>";
}
?>
<input type="submit" value="send" />
</form>
<div class="my_update_panel">result will be loaded here...</div>
</body>
</html>
And your questionmastermodify.php PHP file
<?PHP
$que_id = $_REQUEST['que_id'];
echo '<pre>';
print_r($que_id);
echo '</pre>';
?>
Result
After form submit .. the HTML will print out:
<pre>Array
(
[0] => 151
[1] => 152
[2] => 153
)
</pre>
And in the console.log();
["151", "152", "153"]
Give a try and good luck!
solution2
0 2013-10-14 09:01:11
You could encode the array into JSON:
data: { que_id: JSON.stringify(que_id_array)},
In the PHP, decode it:
$que_id = json_decode($_REQUEST['que_id']);
echo count($que_id);
solution3
0 2013-10-15 06:06:33
The problem has been sorted out :
The culprit was the version of the jquery i was using. I was using jQuery JavaScript Library v1.3.2 - which caused this problem.
Using the latest : jquery-1.9.0.min.js solve the problem.
I am accepting the answer provided by #gmo as it brought me near to the problem solving and also about that helpful tip about not using id attribute in the Loop...
Thanks all...
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