make a Javascript array from php echo output

Question

javascript help: i have a php page that echos

['A', 28.006660938911], ['B', 71.993339061089]

now i need this converted into an array in javascript, but in ajax, "var myData = new Array($http.responseText);" does not work

JSON is your friend: how can json_encode be used here? (Make sure to use the correct flags! :-) Also, this has been asked on SO like a bazillion times... on the JavaScript side use the appropriate JSON decoding, of course. There is no such Array constructor that takes a string. It just doesn't work like that.
I second what Pst said. JSON will undoubtedly be the easiest (and probably most efficient) way to accomplish this.

shybovycha · Accepted Answer · 2011-10-25 06:15:26Z

If given string is:

var s = "['A', 28.006660938911], ['B', 71.993339061089]";

try evaluating it (if you have no access to the PHP code you are using):
```
var array = eval("[" + s + "]");
```

try changing the response to JSON format (if you HAVE access to that PHP code):

echo json_encode(array(array('A', 28.006660938911), array('B', 71.993339061089)));

if i am wrong and you are given with two different arrays, try splitting the string first

zion ben yacov · Answer 2 · 2011-10-25 10:18:34Z

up vote 0 down vote

var myJSONObject = <?php echo json_encode($someArray); ?>
alert(  myJSONObject.keyInTheArray  )

answered Oct 25 '11 at 10:18

zion ben yacov
1233

2 Answers