True only on Weekdays and at a specific time - php

Question

I am using PHP 7.4.1 and Laravel Framework 6.20.12 with the carbon library.
I want to return true only once from Monday to Friday if a date crosses the $sendPost variable. My cron-job runs every 5 Minutes.
I tried:
<?php
require 'vendor/autoload.php';
use Carbon\Carbon;
function checkMsgFired() {
$now = Carbon::now();
// $now = Carbon::createFromFormat('d/m/Y H:i:s', "19/1/2021 14:43:00");
$lastSendPost = Carbon::createFromFormat('d/m/Y H:i:s', "18/1/2021 14:43:00"); // the posting has already happended today
$post = array();
$post['Frequency'] = "MoToFr"; // send only from monday to friday at a specific date once
$post['sendPost'] = Carbon::createFromFormat('H:i:s', "14:40:00"); // when the post should be send
if($post['Frequency'] === "MoToFr") {
// if it is a WEEKDAY
if($now->dayOfWeek !== Carbon::SATURDAY or $now->dayOfWeek !== Carbon::SUNDAY) {
// $lastPosting didn't happen today
if(!$lastSendPost->isToday() && $now->gt($post['sendPost'])){
return true;
}
else{
return false;
}
} else {
return false;
}
}
}
var_dump(checkMsgFired());
However, the posting time does not seem to work. How can I check that the event has already fired once at the exact time?
Furthermore, is there an easier version to code this?
I appreciate your replies!

Answer 1

Something like possibly? This’ll give you true when the time is between 14:40 and 14:45, so long as your cron job runs every 5 minutes it should be mostly correct.
<?php
require 'vendor/autoload.php';
use Carbon\Carbon;
function checkMsgFired() {
$now = Carbon::now();
$frequency = "MoToFr";
$sendPost = Carbon::createFromFormat('H:i:s', "14:40:00");
if ($frequency === "MoToFr") {
if ($now->isWeekday()) {
return $now->between($sendPost, $sendPost->addMinutes(5));
}
}
return false;
}
var_dump(checkMsgFired());