How to print formatted JSON array in php

Question

I was trying to print some image details as a JSON array for that I just wrote a PHP code. Now it is printing only JSON objects like {"image0":"iphone.png","image1":"bbg.jpg"}, But I want it to be formatted as {"images":[{"image0":"iphone.png"},{"image1":"bbg.jpg"}]}. Please someone help me to fix this.

code

<?php
$return_array = array();
$files = glob('tmp/*');
$files = array_filter($files,create_function('$file','return (!is_dir($file));'));
usort($files,create_function('$a,$b','return filemtime($b) - filemtime($a);'));
foreach($files as $key => $file)
{
   $return_array["image".$key] = basename($file);
}
echo json_encode($return_array);    
?>

The data structure [{"image0":"iphone.png"},{"image1":"bbg.jpg"}] makes little sense. Why not have an array of strings? ["iphone.png", "bbg.jpg"]. — Felix Kling
– Felix Kling, Commented May 12, 2014 at 7:14

Hybrid Developer · Accepted Answer · 2014-05-12 17:06:21Z

1

You could write your code like this after your foreach construct.

$new_arr = array();
foreach($return_array as $k=>$v)
{
 $new_arr['images'][]=array('image'.$k=>$v);
}
echo json_encode($new_arr);

edited May 12, 2014 at 17:06

Hybrid Developer

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answered May 12, 2014 at 7:08

Shankar Narayana Damodaran

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8 Comments

Hybrid Developer Over a year ago

this wont print the '[]'

Shankar Narayana Damodaran Over a year ago

@ДмитрийИвановичМенделеев, Can you try now ?

Hybrid Developer Over a year ago

now it will print 0 th index as [["tmp\/iphone.png"]

Hybrid Developer Over a year ago

want to eliminate the first '['

Felix Kling Over a year ago

@ДмитрийИвановичМенделеев: Use array('image'.$k=>$v) instead.

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