<?php
// check_1970.php
// RJM Programming
// July, 2023

$ideaf=sys_get_temp_dir() . DIRECTORY_SEPARATOR . "xyz_" . rand(0,34567892) . '.txt';
file_put_contents($ideaf, '');
$dts=filectime($ideaf);
unlink($ideaf);

echo "<html>
<head>
</head>
<body>
<h1>Client Javascript and Server PHP Datetime Seconds Since 1970 Understanding</h1>
<h3>RJM Programming - July, 2023</h3>
<script type=text/javascript>

  document.write('<p>Javascript:  var dts=Math.floor(eval(eval(\"\" + (new Date()).getTime()) / 1000.0)); is ' + Math.floor(eval(eval('' + (new Date()).getTime()) / 1000.0)) + '<br>PHP: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\$dts=filectime(sys_get_temp_dir() \. \"xyz_\" \. rand(0,34567892) \. \".txt\"); is " . $dts . "</p>');

</script>
</body>
</html>
";



?>
