PHP - Read JS array in PHP

Question

I have a very complicated array, and i want to convert it into a PHP valid array so i can loop through the values.

JS array:

$test = (       // Portraits
  {'image'=> 'http://farm8.staticflickr.com/7319/8993158058_f82968e61a_b.jpg', 'thumb'=> 'http://farm8.staticflickr.com/7319/8993158058_f82968e61a_t.jpg'},
  {'image'=> 'http://farm3.staticflickr.com/2891/8993155214_b8e091c625_b.jpg', 'thumb'=> 'http://farm3.staticflickr.com/2891/8993155214_b8e091c625_t.jpg'},
  {'image'=> 'http://farm8.staticflickr.com/7432/8993133146_d647438c55_b.jpg', 'thumb'=> 'http://farm8.staticflickr.com/7432/8993133146_d647438c55_t.jpg'});

EDIT

PHP loop: it should the image part for every value

  for ($i = 0;$i < $test.length;$i++){
    saveToDisk($test[$i]['image'],$i);
 }

Is the above correct? how can i read through the values?

if you swap { and } with [ and ] you hafve valid php short array notation, if you swap => with : it looks like valid JSON. — Kris
– Kris, Commented Nov 10, 2014 at 13:30
@coder101 take a look at my answer, it's a working example on how you should do it. just make sure you strinify your Javascript object in order to be able to use json_decode on it. — D_R
– D_R, Commented Nov 10, 2014 at 13:35

D_R · Accepted Answer · 2014-11-10 13:55:45Z

1

You can use json_decode function to convert json formatted string into a PHP arrays (or object if you're calling it without the second parameter or with false instead)

$test = '[{"image":"http:\/\/farm8.staticflickr.com\/7319\/8993158058_f82968e61a_b.jpg","thumb":"http:\/\/farm8.staticflickr.com\/7319\/8993158058_f82968e61a_t.jpg"},{"image":"http:\/\/farm3.staticflickr.com\/2891\/8993155214_b8e091c625_b.jpg","thumb":"http:\/\/farm3.staticflickr.com\/2891\/8993155214_b8e091c625_t.jpg"},{"image":"http:\/\/farm8.staticflickr.com\/7432\/8993133146_d647438c55_b.jpg","thumb":"http:\/\/farm8.staticflickr.com\/7432\/8993133146_d647438c55_t.jpg"}]';

$array = json_decode($test, 1);

// Looping each inner array and printing image/thumb keys
foreach ($array as $arr) {
   echo $arr['image'].' - '.$arr['thumb'];
}

Also in order to convert your JavaScript object to a valid JSON string you should be using the JSON.strngify function:

JSON.stringify(object); // <-- JavaScript function

edited Nov 10, 2014 at 13:55

answered Nov 10, 2014 at 13:26

D_R

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6 Comments

Kris Over a year ago

that string isn't quite json

D_R Over a year ago

@kris You are right, that's because he's example wasn't in the correct json string format. I've edited my answer to show my example.

coder101 Over a year ago

I've edited the question, how can i read the values of the image part using the loop. Please help.

D_R Over a year ago

@coder101 , just make sure the string you are passing is using in valid JSON format (using the strinify function in JavaScript). and you will be able to use Json_decode to convert it into an PHP array.

coder101 Over a year ago

your example doesn't really solve my problem. Can you show it with multiple values, also with the thumb part as i provided in the question?

|

osmancode · Accepted Answer · 2014-11-10 13:26:48Z

0

you can read parse in PHP using json_decode

answered Nov 10, 2014 at 13:26

osmancode

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Comments

Kris · Accepted Answer · 2014-11-10 13:34:55Z

Your "array" code looks like an invalid mixture between PHP and Javascript syntax. It should look more like:

$test = json_decode("[
  {'image'=> 'http://farm8.staticflickr.com/7319/8993158058_f82968e61a_b.jpg', 'thumb'=> 'http://farm8.staticflickr.com/7319/8993158058_f82968e61a_t.jpg'},
  {'image'=> 'http://farm3.staticflickr.com/2891/8993155214_b8e091c625_b.jpg', 'thumb'=> 'http://farm3.staticflickr.com/2891/8993155214_b8e091c625_t.jpg'},
  {'image'=> 'http://farm8.staticflickr.com/7432/8993133146_d647438c55_b.jpg', 'thumb'=> 'http://farm8.staticflickr.com/7432/8993133146_d647438c55_t.jpg'}]");

Or better yet:

$test = [
  ['image'=> 'http://farm8.staticflickr.com/7319/8993158058_f82968e61a_b.jpg', 'thumb'=> 'http://farm8.staticflickr.com/7319/8993158058_f82968e61a_t.jpg'],
  ['image'=> 'http://farm3.staticflickr.com/2891/8993155214_b8e091c625_b.jpg', 'thumb'=> 'http://farm3.staticflickr.com/2891/8993155214_b8e091c625_t.jpg'],
  ['image'=> 'http://farm8.staticflickr.com/7432/8993133146_d647438c55_b.jpg', 'thumb'=> 'http://farm8.staticflickr.com/7432/8993133146_d647438c55_t.jpg']
];

How can i read the values through a for loop using the second version of the array syntax you provided?

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