Removing expired dates from an array with PHP

Question

I have an array of dates formatted in 'm/d/Y' (month/day/year):

$array = array(

'1/10/2014',
'1/11/2014',
'1/12/2014',
'1/13/2014',
'1/14/2014'
);

and I'd like to output the array with only dates of today or in the future. So if today is 1/12/2014 it would eliminate the 1/10/2014 and 1/11/2014.

Here is what I have that isn't working:

foreach ($array as $date) {

 $unixdate = strtotime($date);

 if ($unixdate < time()) {

 unset($array[$date]);

 }

}

print_r($array);

I guess I'm not using unset correctly because it prints the entire array?

$data is not the array index

Shidil Eringa
– Shidil Eringa

2014-01-12 20:04:56 +00:00
Commented Jan 12, 2014 at 20:04 — Shidil Eringa
– Shidil Eringa, Commented Jan 12, 2014 at 20:04

Community · Accepted Answer · 2023-11-17 20:04:29Z

6

I suggest you look into array_filter(). Also you want to use today's date at 12:00:00 for the comparisson, not the current time.

$array = array(
    '1/10/2014',
    '1/11/2014',
    '1/12/2014',
    '1/13/2014',
    '1/14/2014'
);

$array = array_filter($array,function($date){
    return strtotime($date) >= strtotime('today');
});

print_r($array); //Array ( [2] => 1/12/2014 [3] => 1/13/2014 [4] => 1/14/2014 )

*Note: PHP 5.3 needed for anonymous functions

edited Nov 17, 2023 at 20:04

CommunityBot

11 silver badge

answered Jan 12, 2014 at 20:12

omma2289

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Comments

jgabriel · Accepted Answer · 2014-01-12 20:02:58Z

2

Try

foreach ($array as $key => $date) {

 $unixdate = strtotime($date);

 if ($unixdate < time()) {

 unset($array[$key]);

 }

}

print_r($array);

answered Jan 12, 2014 at 20:02

jgabriel

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2 Comments

Erik Berger Over a year ago

Looks like it is working! But it is removing today (1/12/14) too. Probably an issue with the if statement, but any thoughts as to why?

jszobody Over a year ago

@ErikBerger Use strtotime('today') instead of time() for your comparison (from koala_dev's answer)

ovgu12 · Accepted Answer · 2014-01-12 20:35:56Z

1

foreach ($array as &$date) Hi using call by reference and $date = NULL; in the loop

OR

foreach ($array AS $key => $date) {

 $unixdate = strtotime($date);

 if ($unixdate < time()) {

    unset($array[$key]);

 }

}

if you want to completely remove those entries

edited Jan 12, 2014 at 20:35

answered Jan 12, 2014 at 20:24

ovgu12

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