Convert php 2D array

Question

Firstly what I am trying is creating a pie chart using google chart api. There I have to feed an javascript array of array. Now what I have in server side is an php array of following structure:

[
  {
    "name": "a",
    "price": 25200
  },
  {
    "name": "b",
    "price": 13500
  }
]

What I need is:

[
  [
    "a": 25200
  ],
  [
    "b": 13500
  ]
]

What I have so far - used the following php function to convert.

public function convert($packages){
    $packageShare = array(array());
    $count = count($packages);
    for($i = 0; $i < $count; $i++){    
        $pack = array();

        $pack[$packages[$i]['name']] = $packages[$i]['price'];

        $packageShare[$i] = $pack;
   }
   return $packageShare;
}

But the output was not what I want. Here is what the above function returns:

[
  {
    "a": 25200
  },
  {
    "b": 13500
  }
]

N.B. I need to feed this array in google chart api which takes something like this in javascript.

[ [0, 0], [1, 10], [2, 12] ]

What can be the standard way to feed?

The json array which your php is generating should work. Have a look at this link. And what's the error that you get? — Prashanth Benny
– Prashanth Benny, Commented Apr 15, 2017 at 7:59

LF-DevJourney · Accepted Answer · 2017-04-15 08:23:43Z

1

for [ [0, 0], [1, 10], [2, 12] ] format, it's an array of array. You can get this with

$output = array_map(function($v){return [$v['name'], $v['price']];}, $array);
print_r(json_encode($output));

output:

[["a",25200],["b",13500]]

Here is also other format,

<?php
        //Enter your code here, enjoy!
$array = array(array('name'=>'a', 'price'=>25200),array('name'=>'b', 'price'=>13500));
print_r(json_encode($array));
echo "\n";
$output = array_map(function($v){return [$v['name'], $v['price']];}, $array);
print_r(json_encode($output));
echo "\n";
$output1 = array_map(function($v){return array($v['name'] => $v['price']);}, $array);
print_r(json_encode($output1));
echo "\n";

output:

[{"name":"a","price":25200},{"name":"b","price":13500}]
[["a",25200],["b",13500]]
[{"a":25200},{"b":13500}]

answered Apr 15, 2017 at 8:23

LF-DevJourney

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rahul patel · Accepted Answer · 2017-04-15 08:21:24Z

0

public function convert($packages){
    $a = json_decode($packages,true);
    $count = sizeof($a);
    for($i = 0; $i < $count; $i++){    
        $b[][$a[$i]['name']]=$a[$i]['price'];
   }
   return $b;
}

Output of print_r($b) will be

Array ( [0] => Array ( [a] => 25200 ) [1] => Array ( [b] => 13500 ) )

answered Apr 15, 2017 at 8:21

rahul patel

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