Question

i use all ways to transfer array from php to js but the best solution is to use

JSON_encode($arr);

and all way to decode it fail
finally i decide to do it manually where the data received in JavaScript are like this: [“208″,”2812”] which converted to integer array by this java code but i don’t know how to transfer it to javascript

String arr = "[\"208\",\"2507\"]";

//this its the output of him ["208","2507"]

String[] items = arr.replaceAll("\\[", "").replaceAll("\\]", "").split(",");

int[] results = new int[items.length];

for (int i = 0; i < items.length; i++) {

        results[i] = Integer.parseInt(items[i]);
}

Answer 1

Given a string in JSON format like you have:

var arr = "[\"208\",\"2507\"]";

You can get an actual array with:

var items = JSON.parse(arr);

Though that contains strings. To turn the strings into integers:

var results = items.map(function(v){return parseInt(v,10);});

Or in one line:

var results = JSON.parse(arr).map(function(v){return parseInt(v,10);});

But if you need the items in the array to be integers, why don’t you just output integers in the first place, rather than strings:

var arr = "[208,2507]";

Then all you need is:

var results = JSON.parse(arr);