current time lies between time range - php

Question

i need to check whether the current time lies between the range
these r restaurant open timings ,timings can be like open now till next morning or closed for sometime same day and open next half same day till next day or midnight
examples
Case1: 10:00 01:00
Case2: 10:00 23:59
Case3: 10:00 00:00
Case4: 23:59 05:00
Case5: 08:35 15:30 && 17:30 02:00
Case6: 10:00 15:00 && 17:00 00:00
all the cases must be checked
if((strtotime($s)<=strtotime($myTime)) && (strtotime($e)>=strtotime($myTime)))
{$open =1;}
if($e=="00:00")
{ if((strtotime($s)<=strtotime($myTime))&& (strtotime($myTime)>=strtotime("00:00")))
{$open =1;}}
this is not working where m i going wrong

Answer 1

Something like this might work. I've not really tested it.
$currentTime = time();
function in_range($what, $min, $max) {
return $what >= $min && $what <= $max;
}
var_dump(in_range($currentTime, strtotime('08:35'), strtotime('15:30'));
// etc.

Answer 2

Use DateTime objects for comparison like this. See http://php.net/manual/en/class.datetime.php
$cases = array(
array(
'start' => new DateTime("10:00:00"),
'end' => new DateTime("12:00:00"),
),
array(
'start' => new DateTime("10:00:00"),
'end' => new DateTime("23:59:00"),
),
array(
'start' => new DateTime("10:00:00"),
'end' => new DateTime("00:00:00"),
),
array(
'start' => new DateTime("23:59:00"),
'end' => new DateTime("05:00:00"),
),
);
//adjust dates
$cases[2]['end']->modify('+1 day');
$cases[3]['start']->modify('-1 day');
$now = new DateTime();
foreach ($cases as $key => $value) {
if ($now > $value['start'] && $now < $value['end']) {
echo 'case ' . $key . ' ok' . PHP_EOL;
}
else {
echo 'case ' . $key . ' out of range' . PHP_EOL;
}
}

Answer 3

Right-o, had a mess around for you. Do you want to see if this is getting your expected output? Seems to be working on my local tests. Fair bit of code mind, turned out to be a few edge cases to consider.
Potentially bits of it that can be refactored and improved, but i'll leave that up to you if it works as intended.
<?php
$cases = [
[['start' => '09:00', 'end' => '01:00']],
[['start' => '10:00', 'end' => '23:59']],
[['start' => '10:00', 'end' => '00:00']],
[['start' => '23:59', 'end' => '05:00']],
[['start' => '10:00', 'end' => '15:00'], ['start' => '17:30', 'end' => '02:00']],
[['start' => '10:00', 'end' => '15:00'], ['start' => '17:30', 'end' => '00:00']],
];
$cases = setUpCases($cases);
foreach ($cases as $case) {
$withinTimeRange = isTimeWithinCase((new DateTime()), $case);
if ($withinTimeRange) {
break;
}
}
// Boolean True/False whether it is within any of the ranges or not.
// i.e. True = Shop Open, False = Shop closed.
var_dump($withinTimeRange);
function setUpCases($cases) {
return array_map(function($case) {
return convertToDateTimeObjects($case);
}, $cases);
}
function convertToDateTimeObjects($case) {
$formatted = [];
foreach ($case as $index => $times) {
$s = new DateTime();
list($hour, $minute) = explode(':', $times['start']);
$s->setTime($hour, $minute, 00);
$e = new DateTime();
list($hour, $minute) = explode(':', $times['end']);
$e->setTime($hour, $minute, 00);
if ($e < $s) $e->modify('+1 day');
$formatted[] = ['start' => $s, 'end' => $e];
}
return $formatted;
}
function isTimeWithinCase($time, $case) {
foreach ($case as $timerange) {
return ($time > $timerange['start'] && $time < $timerange['end']);
}
}

Answer 4

I have been thinking about this task carefully. And i came up with the logic that is required to calculate whether the current time is in between 2 times. There are the following two cases to calculate that:
Case 1: The starting time is greater than the ending time
Which means the ending time must be the next day. That means that if your current time is less than the ending time OR greater than the start time, your time is in between the two times.
Case 2: The starting time is less than the ending time
In this case, the start time and the ending time is the same day. For this, the logic that is needed is to check whether or not your time is greater than the start time AND less than the ending time. If that's statement is true, your time is in between the two times.
I have made the following function for calculating that:
function checktime($arr,$time) {
list($h,$m)=explode(":",$time);
if(!is_array($arr[0])) {
$r1=explode(":",$arr[0]);
$r2=explode(":",$arr[1]);
if($r1[0]>$r2[0]) {
if(($h>$r1[0] || ($h==$r1[0] && $m>=$r1[1])) || ($h<$r2[0] || ($h==$r2[0] && $m<=$r2[1]))) return true;
}
else {
if(($h>$r1[0] || ($h==$r1[0] && $m>=$r1[1])) && ($h<$r2[0] || ($h==$r2[0] && $m<=$r2[1]))) return true;
}
}
}
And here are some tests, for testing the limits of the cases you gave me:
$arr=array("10:00","01:00");
echo (checktime($arr,"23:59")?"True":"False");//True
echo (checktime($arr,"12:00")?"True":"False");//True
echo (checktime($arr,"00:00")?"True":"False");//True
$arr=array("10:00","23:59");
echo (checktime($arr,"23:59")?"True":"False");//True
echo (checktime($arr,"12:00")?"True":"False");//True
echo (checktime($arr,"00:00")?"True":"False");//False
$arr=array("10:00","00:00");
echo (checktime($arr,"23:59")?"True":"False");//True
echo (checktime($arr,"12:00")?"True":"False");//True
echo (checktime($arr,"00:00")?"True":"False");//True
$arr=array("23:59","05:00");
echo (checktime($arr,"23:59")?"True":"False");//True
echo (checktime($arr,"12:00")?"True":"False");//False
echo (checktime($arr,"00:00")?"True":"False");//True
$arr=array("08:35","15:30");
echo (checktime($arr,"23:59")?"True":"False");//False
echo (checktime($arr,"12:00")?"True":"False");//True
echo (checktime($arr,"00:00")?"True":"False");//False
$arr=array("17:30","02:00");
echo (checktime($arr,"23:59")?"True":"False");//True
echo (checktime($arr,"12:00")?"True":"False");//False
echo (checktime($arr,"00:00")?"True":"False");//True
$arr=array("10:00","15:00");
echo (checktime($arr,"23:59")?"True":"False");//False
echo (checktime($arr,"12:00")?"True":"False");//True
echo (checktime($arr,"00:00")?"True":"False");//False
$arr=array("17:00","00:00");
echo (checktime($arr,"23:59")?"True":"False");//True
echo (checktime($arr,"12:00")?"True":"False");//False
echo (checktime($arr,"00:00")?"True":"False");//True

Answer 5

this works for all the casese
$let=array("01:00","02:00","03:00","05:00","04:00");
if((strtotime($s)<=strtotime($myTime)) && (!strcmp($e,"00:00")))
{ $open=1;$flag=1;}
if((strtotime($s)<=strtotime($myTime)) && (!strcmp($e,"23:59")))
{ $open=1;$flag=1;}
if(in_array($e,$let))
{
if(strtotime($s)<=strtotime($myTime))
{ $open=1;$flag=1;}
else
if(strtotime($e)>=strtotime($myTime))
{ $open=1;$flag=1;}
}
if(!$flag)
{if((strtotime($s)<=strtotime($myTime)) && (strtotime($e)>=strtotime($myTime)))
{ $open=1;} }