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up vote -1 down vote favorite

This question already has an answer here:

How can I sort this array by value "date and let the ASC result shows? Is the bad formatting and naming caused my works to being wrong so that it made the ["date"] could not show in the table by ASC format. Thanks for everyone helps.

Array: 

$arrayBooking = array(
        "a01"=>array(
            "Amy"=>array(
                "booking1"=>array(
                    "231"=>array(
                        "date"=>"21/08/2014",
                        "period"=>array(
                            "from"=>1,
                            "to"=>3
                            )
                        )
                    )
                )
           ),
           "a02"=>array(
              "Peter"=>array(
                "booking1"=>array(
                    "231"=>array(
                        "date"=>"23/08/2014",
                        "period"=>array(
                            "from"=>2,
                            "to"=>3
                            )
                        )
                  ),
                 "booking2"=>array(
                    "231"=>array(
                        "date2"=>"20/08/2014",
                        "period"=>array(
                            "from"=>2,
                            "to"=>5
                            )
                        )
                    )
                )
            ),
            "a05"=>array(
               "Mary"=>array(
                  "booking1"=>array(
                     "321"=>array(
                        "date"=>"22/08/2014",
                            "period"=>array(
                                "from"=>3,
                                "to"=>6
                                )
                            )
                        )
                   )
              )
            )
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marked as duplicate by Ja͢ck Aug 20 at 7:21

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
1  
it is already sorted by date –  SKRocks Aug 20 at 7:16
    
it showed almost 2% of the array information. lol –  learn_PHP Aug 20 at 7:17
    
i got it i will try and update you –  SKRocks Aug 20 at 7:19

1 Answer 1

up vote 0 down vote

You can use usort() function to sort array by preferred algorithm

usort($array, function($a, $b){
    if ($a < $b) {
       return -1;
    } elseif ($a == $b) {
       return 0;
    }
    return 1;
});

To compare dates, use this SO answer

$stamp1 = strtotime($date1);
$stamp2 = strtotime($date2);

return $stamp1 - $stamp2;
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