Multiple inputs with same name through POST in php is not working [duplicate]

Question

I have a form with 2 inputs as below. I am sending POST request through ajax

<input name="item_name[]" value="Monthly" id="i1"/> <input name="item_name[]" value="Weekly" id="i2" /> xmlhttp.open("POST","validation.php",true); var params = "item_name="+document.getElementById('i1').value+"item_name="+document.getElementById('i2').value; xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); xmlhttp.setRequestHeader("Content-length", params.length); xmlhttp.setRequestHeader("Connection", "close"); xmlhttp.send(params);

When i submit the page in php, i am not able to read both values. The array shows only one character of the first value.

echo '1.'.$_POST['item_name'][0].' 2.'.$_POST['item_name'][1];

Output is : 1.M 2.o

Expected output is 1.Monthly 2.Weekly

Even , i tried printing $_POST['item_name'] , it shows Monthly only.

Chrome --> Developer Tools --> Gives proper output as well. I dont know where the problem is ?

enter image description here

Works fine, are you sure they are spelled the same and have the [] ? — AbraCadaver
– AbraCadaver, Commented May 20, 2014 at 19:51
@AbraCadaver : I have added more details to my question. I am submitting the page through AJAX request. — logan
– logan, Commented May 20, 2014 at 19:53

newBee · Accepted Answer · 2014-05-20 21:19:56Z

2

Edit: (now with Ajax. I use JQuery here but the concept should stay similar)

<script src="//code.jquery.com/jquery-1.11.0.min.js"></script> <script src="//code.jquery.com/jquery-migrate-1.2.1.min.js"></script> <script type="text/javascript"> var myData = new Array(); myData[0]="one"; myData[1]="two"; $.ajax({ type: "POST", url: 'test2.php', data: {'data':myData}, success: function(output) { //do something } } }); </script>

result in PHP (var_dump($_POST))

array(1) { ["data"]=> array(2) { [0]=> string(4) "one" [1]=> string(3) "two" } }

edited May 20, 2014 at 21:19

answered May 20, 2014 at 19:45

newBee

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6 Comments

logan Over a year ago

I have added more details to my question. I am submitting the page through AJAX request

newBee Over a year ago

Edited it. However i always use JQuery as it's ways easier this in my opinion. Hope this still helps.

logan Over a year ago

If you see a snapshot given in question, it sends two values properly but PHP is not able to recognize it.

newBee Over a year ago

If you var_dump $_POST and the values are not displayed correctly you have an error in your ajax-request/JS and not in PHP. So you might be searching at the wrong place.

logan Over a year ago

var_dump $_POST only returns 1 record. the second one is not coming though the Chrome page tells it sent two of the values

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logan · Accepted Answer · 2014-05-20 21:11:05Z

Found answer myself.. Need to add [] symbol in the javascript code. Its working fine now..

var params = "item_name[]="+document.getElementById('i1').value+"item_name[]="+document.getElementById('i2').value;

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