CODEWITHSUNDEEP
php
MarlZ15199
MarlZ15199

Reputation: 288

Sort array with key as time in format xx:xx

I have this associate array below

["12:00" => "Lunch", "07:00" => "Arrival", "07:15" => "Start Tour"]

I want to print it in as below ascending by time (key)

7:00 => Arrival
7:15 => Start Tour
12:00 => Lunch

So far what I've tried is below

$arr = ["12:00" => "Lunch", "07:00" => "Arrival", "07:15" => "Start Tour"];

function timecomp($a,$b)
{
    // Subtracting the UNIX timestamps from each other.
    // Returns a negative number if $b is a date before $a,
    // otherwise positive.
    return strtotime($b[0])-strtotime($a[0]);
}
uasort($arr,'timecomp');

print_r($arr);

It print this 

Array
(
    [07:15] => Start Tour
    [07:00] => Arrival
    [12:00] => Lunch
)

Upvotes: 1

Views: 99

Answers (1)

Alex Howansky
Alex Howansky

Reputation: 53573

As long as your time strings use 24-hour hours and leading zeroes, you can just use ksort():

$a = ["12:00" => "Lunch", "07:00" => "Arrival", "07:15" => "Start Tour"];
ksort($a);
print_r($a);

Result:

Array
(
    [07:00] => Arrival
    [07:15] => Start Tour
    [12:00] => Lunch
)

Upvotes: 7

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