parse json string and sort

[php_begins]

I need parse the JSON string below into an associative array, sort it by the 'age' field and output the sorted array as an HTML table. Here is what I have done so far but it just returns me 'Array':

 

<?php
$json='[{"name": "John","age": 23},{"name": "jim","age": 19},{"name": "jason","age": 34}]';
$array = json_decode( $json, true); 

function cmp( $a, $b){ 
  if( !isset( $a['age']) && !isset( $b['age'])){ 
    return 0; 
  } 

  if( !isset( $a['age'])){ 
    return -1; 
  } 

  if( !isset( $b['age'])){ 
    return 1; 
  } 

  if( $a['age'] == $b['age']){ 
    return 0; 
  } 

  return (($a['age'] > $b['age']) ? 1 : -1); 
} 

usort( $array, 'cmp');
foreach ($array as $key => $value) {
    echo $key.":".$value."\n";
}
?>

[PaulRyan]

This is something I put together, not sure how scalable it will be, but it works nonetheless.

It could be a stepping stone in the right direction

 

<?PHP

  $json='[{"name": "John","age": 23},{"name": "jim","age": 19},{"name": "jason","age": 34}]';
  $array = json_decode($json, true); 
   
  foreach($array AS $key => $newArray) {
    $tempArray[$key] = $newArray['age'];
  }
  
  asort($tempArray);
  $finalArray = array();
  
  foreach($tempArray AS $key => $value) {
    $finalArray[] = $array[$key];
  }
  
  print_r($finalArray);
  
?>

 

Regards, PaulRyan.

[ManiacDan]

$value in your bottom loop is another array.  You have to foreach through it or use implode() or something to get the values out.  Attempting to echo an array just prints "Array".

[php_begins]

Thanks both of you. My soultion worked fine with the changes suggested by Dan.