how to pass javascript array to php

Question

I want to pass array myWorkout to 'play_workout.php'. I want 'play_workout.php' to open and display the contents of myWorkout (for this example). (Once I see that this is working I will parse the data from myWorkout and write it back to a database). I'm not getting any errors in firebug, but play_workout is not being opened nor is is capturing the array object myWorkout.

I would appreciate a second glance at this. Thanks as always!

page workout_now.php

<div id="playworkout"><button onClick="playWorkout()">Play Workout</button></div>

JAVASCRIPT

function playWorkout(){

  var arr = $("#dropTargetframe > li").map(function(){
  return $(this).attr('data-id');}).get();

     var myRoutine = arr;
     var myWorkout = new Array();
        for (var i in myRoutine){
           if (myRoutine[i])
             myWorkout.push(myRoutine[i]);
            }
          //array appears like ["4", "5", "1", "4"]
          JSON.stringify(myWorkout);
          encodeURIComponent(myWorkout);

         var url = "http://localhost/RealCardio/play_workout.php";

         $.get(url, myWorkout);

page play_workout.php

<?php
 ...
 $arrayWorkout = json_decode($_REQUEST['myWorkout']); 
 print_r($arrayWorkout);     
...
?>

exact duplicate stackoverflow.com/questions/891320/…

samccone
– samccone

2012-03-06 22:17:15 +00:00
Commented Mar 6, 2012 at 22:17 — samccone
– samccone, Commented Mar 6, 2012 at 22:17

Eugen Rieck · Accepted Answer · 2012-03-09 09:11:50Z

1

Assuming, that as in your comment the array elements doesn't contain any special chars, just numbers, simply do

var myWorkoutPost=myWorkout.join('x');

Transport this to the server the way you want (form hidden field, AJAX, ..) and in PHP do

$myWorkout=explode('x',$_REQUEST['myWorkoutPost']);

edited Mar 9, 2012 at 9:11

answered Mar 6, 2012 at 22:18

Eugen Rieck

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2 Comments

Derek Over a year ago

What would I populate in .join(x)? What value goes in 'x'?

Eugen Rieck Over a year ago

Sorry, was a typo, should have been 'x' , not x , I have edited my answer.

Mr Wednesday · Accepted Answer · 2012-03-06 22:22:53Z

1

Both PHP and Javascript use JSON encoding so I would say the best way would be to JSON encode the array and then POST it as a hidden field to the PHP page and use JSON decode.

http://www.php.net/manual/en/function.json-decode.php

answered Mar 6, 2012 at 22:22

Mr Wednesday

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Comments

mcmajkel · Accepted Answer · 2012-03-06 22:21:03Z

0

Encode this array to JSON, send it to php script and recieve it with $_POST. Finally, decode JSON in php script.

answered Mar 6, 2012 at 22:21

mcmajkel

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Omar Al-Ithawi · Accepted Answer · 2012-03-06 22:26:27Z

0

A work flow for almost every structured values 99% of the time it will do.

Use JSON.stringify([1,2,3]) it will give you a string "[1,2,3]".
Encode it with encodeURIComponent("[1,2,3]") you'll have something like this "%5B1%2C2%2C3%5D"
Now it's save to be sent to PHP or any other server side language try to use XMLHttpRequest or better jQuery.get() to send the values to PHP.

In php you'd do this: - $arrayOfValues = json_decode($_REQUEST['name_of_parameter']); - print_r($arrayOfValues);

Normally you'd need to include JSON library to support old browsers. More info on JSON.

answered Mar 6, 2012 at 22:26

Omar Al-Ithawi

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2 Comments

Derek Over a year ago

Is this how I would pass it in javascript - $.get('play_workout.php',myWorkout,'','json');

Derek Over a year ago

I revised the question a little. Can you take another look?

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