Conditional based on day of week and time range - php

Question

I'm trying to find a solution to a conditional based on the day of the week and a time range within that day. I've managed to hunt down the code for the day of the week but I can't find how to incorporate a time frame within the day?
For example:
IF today is Monday AND between 2pm and 4pm THEN do THIS
This is what I have...
<?php
date_default_timezone_set('Australia/Perth'); // PHP supported timezone
$script_tz = date_default_timezone_get();
// get current day:
$currentday = date('l'); ?>
<?php if ($currentday == Monday){ ?>
Monday
<?php } elseif ($currentday == Tuesday){ ?>
Tuesday
<?php } elseif ($currentday == Wednesday){ ?>
Wednesday
<?php } elseif ($currentday == Thursday){ ?>
Thursday
<?php } elseif ($currentday == Friday){ ?>
Friday
<?php } elseif ($currentday == Saturday){ ?>
Saturday
<?php } elseif ($currentday == Sunday){ ?>
Sunday
<?php } else { ?>
<?php } ?>
I'm not sure if this may help for the time frame?
Check day of week and time

Answer 1

Basically this:
<?php
if (date('l') === 'Monday' && date('G') >= 2 && date('G') < 4) {
// do something
}
You were missing quotes around the day names.
The condition I wrote will evaluate to true on Monday between 2 PM and 4 PM (while 4 PM itself will not, e.g. the last allowed values is 3:59 PM).

Answer 2

you could use different date/time components to streamline the code:
function between($value, $start, $end)
{
return $value > $start && $value <= $end;
}
$hours = date("G");
switch( date("N"))
{
case 1: //monday
if (between($hours,12 + 2,12 + 4 )) //using 24h format to avoid checking am/pm
{
// IF today is Monday AND between 2pm and 4pm THEN do THIS
}
break;
case 2: //tuesday
break;
//....
}

Answer 3

You'd better user date('N') as it is not language dependant and date('H') to take advantage of the 24h format that is better fit for time comparison.
function date_in_frame($test_date, $day, $start, $end){
$d = new Datetime($test_date);
return $d->format("N") == $day && $d->format("H") >= $start && $d->format("H") < $end;
}
//test if "now" is Monday between 2pm (14:00) and 4pm (15:59)
var_dump(date_in_frame("now", 0, 14, 16));

Answer 4

This code here checks a DateTime is between a start and end time.
<?php
$date = new DateTime('2019-11-18 12:49');
$start = new DateTime('2019-11-18 09:00');
$end = new DateTime('2019-11-18 17:00');
if ($date > $start && $date < $end) {
echo 'In the zone!';
}
Note.
$date->format('l'); will return Monday or whatever day it is.
$date->format('H:i'); will return 13:15 or whatever time it is.
Have a play! https://3v4l.org/XK5KR

Answer 5

All the conditions packed into an array is easier for maintenance.
A simplified example:
$ranges = [
['Monday',12,14, function(){echo "do something";}],
['Tuesday',12,14, function(){echo "do something on Tue";}],
//: more
];
$curWeekDay = date('l');
$hours = date("G");
foreach($ranges as $range){
if($curWeekDay == $range[0] AND $hours >= $range[1] AND $hours < $range[2]){
$range[3]();
}
}
Output on Tue 13:25:
do something on Tue