read jquery array in php

Question

i am trying to retrieve the value of array via post in php script.

var data = [];
table.rows({ selected: true }).every(function(index){
    // Get and store row ID
    data.push(this.data()[0]);  //create a 1 dimensional array
});

//send data via ajax    
$.ajax({                                      
      url: '/...../...',                  
      type: 'POST',   
      data: {userid:data},                      
      dataType: 'json',

In my PHP script so far I am unable to decode the array. Have tried many ways

$myArray = $_REQUEST['userid'];
foreach ($arr as $value) {
    $userid= $value;             //for now just trying to read single item 
}

I have tried print_r($myArray ); this sucessfully prints array contents to screen.

I am trying to retrieve the values for processing! Kindly point me in the right direction

$myArray but foreach($arr )? Are you sure what you do here? — u_mulder
– u_mulder, Commented Sep 23, 2016 at 21:14
Possible duplicate of Get data from php array - AJAX - jQuery — T.Todua
– T.Todua, Commented Sep 23, 2016 at 21:16
Here are the results of 'var_dump' : array(1) { ["userid"]=> string(21) "assssssss,camo,castor" } @mondersky — user2810718
– user2810718, Commented Sep 24, 2016 at 5:38

Al Foиce ѫ · Accepted Answer · 2016-09-23 21:23:11Z

1

I don't think that PHP would recognise the array that you've called "data" as being an array. Couldn't you turn the data from your table rows into values in a JavaScript object, encode it as a JSON string, then post that to your PHP script and use json_decode($_POST["userid"]) on the PHP end to convert it into a PHP array.

edited Sep 23, 2016 at 21:23

Al Foиce ѫ

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answered Sep 23, 2016 at 21:16

Ambulare

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2 Comments

user2810718 Over a year ago

Ive tried encoding the array before posting. This leads to circular reference error

Ambulare Over a year ago

Did you add the values into an object, not an array, first?

Community · Accepted Answer · 2017-05-23 12:15:06Z

1

The object you are posting to PHP isn't in particular a jQuery object. Instead it is an JSON object or rather a JSON string. I guess you can't read that object the way you would read an regular array in PHP.

You might want to try to decode the string with json_decode(). With true as an function argument, it will return an php array as suggested in this stackoverflow answer https://stackoverflow.com/a/6964549/6710876

$phpArray = json_decode($myArray, true);

Documentation of json_decode(): http://php.net/manual/en/function.json-decode.php

edited May 23, 2017 at 12:15

CommunityBot

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answered Sep 23, 2016 at 21:21

Tobi Obeck

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Comments

T.Todua · Accepted Answer · 2016-09-23 21:15:36Z

0

simply use:

echo json_encode($myArray);

answered Sep 23, 2016 at 21:15

T.Todua

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1 Comment

user2810718 Over a year ago

Would this statement not simply post back the array to the calling script?

Esten · Accepted Answer · 2016-09-23 21:48:48Z

0

You're foreach is looping $arr, which doesn't exist. Your array is being set to $myArray, so use that in your for.

$myArray = $_REQUEST['userid'];
foreach ($myArray as $value) {
    $userid= $value;             //for now just trying to read single item 
}

I believe you should also be able to find your values in $_POST

answered Sep 23, 2016 at 21:48

Esten

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mondersky · Accepted Answer · 2016-09-26 11:42:54Z

0

According to your var_dump :

array(1) { ["userid"]=> string(21) "assssssss,camo,castor" }

and if we assume "assssssss,camo,castor" are 3 different usernames. You should use this:

 $userids=explode(",",$myArray->userid);
    foreach($userids as $userid){
        // use $userid
   }

answered Sep 26, 2016 at 11:42

mondersky

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