<?php
$time_start = microtime(true);
// set the variable to 0, it'll matter only if the cookie for the variable is not set
$visitCounter = 0;
// if cookie is set for the variable, it'll go to $visitCounter and get added by 1; otherwise it'll show 0 for tha variable
if(isset($_COOKIE['visitCounter'])){
$visitCounter = $_COOKIE['visitCounter'];
$visitCounter ++;
}
// if the last visist cookie is set, it'll pass the value to $lastVisit, and it'll be displayed below;
if(isset($_COOKIE['lastVisit'])){
$lastVisit = $_COOKIE['lastVisit'];
}
// set cookie for visitCounter
setcookie('visitCounter', $visitCounter+1, time()+3600);
// set cookie for last visit
setcookie('lastVisit', date("d-m-Y H:i:s"), time()+3600);
// show the respected values
// is the variable is not set, say 'welcome', otherwise show the info about visit number and last visit date
if($visitCounter == 0){
echo "Welcome<br><br>";
} else {
echo "This is your visit number ".$visitCounter;
echo '<br>';
echo "Last time, you were here ".$lastVisit. "<br><br>";
}
$time_end = microtime(true);
$time = $time_end - $time_start;
echo 'Script took '.$time.' seconds to execute';
?>
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