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Allow a script to run only between two times and email on error
<?php
########################
// allow a script to only be run between two times
// EG: you can use this for a cron job and if someone tries to access it outside the times
// then you can block the request.
########################
header('Content-type: application/json; charset=utf-8'); //set the page to text only (optional)
$start_time = "09:00";
$end_time = "09:30";
$server_time_zone = date_default_timezone_get(); //this is the current server timezone
date_default_timezone_set('Europe/Madrid'); //change the server timezone to a custom time
$script_time_zone = date_default_timezone_get(); //confirm the new timezone
$now = new DateTime(); //get the time of the server right now
$begin = new DateTime($start_time); //set the first time
$end = new DateTime($end_time); / set the second tim
if ($now >= $begin && $now <= $end) {
$cron_can_run = true;
} else {
$cron_can_run = false;
}
//if cron cant run, hard exit
if($cron_can_run == false) {
$time_now = date('H:i a');
echo "Error - cron cannot run.\n";
echo "Cron can only run between the hours of $start_time and $end_time and current time is: $time_now.\n";
echo "Times are based on $script_time_zone time zone.\n";
echo "If you continue to see this error please contact craig@jucra.com.";
//if the request failed and its from cpanl cron you can send an email
if($_GET["request"] == "cpanel-cron") {
$to = "joe@bloggs.com";
$from = "no-reply@bloggs.com";
$subject = "error with cron on content system at $time_now";
$message .= "<strong style='color:red;'>ERROR WITH CRON ON CONTENT SYSTEM</strong>";
$message .= "<br><br>";
$message .= "Cpanel tried to make a request to the cron located at: xxxxxxxx";
$message .= "<br><br>";
$message .= "The request failed so customers were not sent their emails.";
$message .= "<br><br>";
$message .= "Here is some additional data for you to troubleshoot.";
$message .= "<br><br>";
$message .= "Server time zone: $server_time_zone<br>";
$message .= "Script time zone: $script_time_zone<br>";
$message .= "Time of request: $time_now<br>";
$message .= "Script is allowed to run between $start_time and $end_time<br>";
$message .= "IP of request: ". $_SERVER['REMOTE_ADDR'] . "<br>";
$message .= "<br><br>";
$message .= "<--- end of notifcation";
$message .= "</body></html>";
//build the html headers
$headers = "From: " . $from . "\r\n";
$headers .= "Reply-To: ". $reply_to . "\r\n";
$headers .= "BCC: ". $bcc. "\r\n";
$headers .= "MIME-Version: 1.0\r\n";
$headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n";
mail($to, $from, $reply_to, $bcc, $subject, $message, $headers);
echo "\n\nNOTICE: Alert email sent to joe@bloggs.com.";
}
exit;
}
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