新聞財經娛樂♬資訊 News Economy

<?php // RAY_client_time_verbose.phperror_reporting(E_ALL);ob_start();// USE JAVASCRIPT TO GET THE CLIENT TIME AND COMPARE TO THE SERVER TIME// TEST WITH DIFFERENT TIMEZONES IN THE URL PARAMETER$z = isset($_GET["z"]) ? strtoupper(substr(trim($_GET["z"]),0,1)) : "?";switch ($z){    case 'W' : date_default_timezone_set('America/Los_Angeles'); break;    case 'M' : date_default_timezone_set('America/Denver');      break;    case 'C' : date_default_timezone_set('America/Chicago');     break;    case 'E' : date_default_timezone_set('America/New_York');    break;    default  : date_default_timezone_set('UTC');}// MAKE IT EASIER TO READecho "<pre>";// IF THE FORM IS SUBMITTEDif (!empty($_POST)){    // ADD A CAUTIONARY NOTE    echo "PLEASE DO NOT 'REFRESH' THIS PAGE -- USE THE SUBMIT BUTTON INSTEAD!";    // COMPUTE THE SERVER TIME AND DIFFERENCE FROM CLIENT POST-REQUEST    list ($usec, $sec) = explode(' ', microtime());    $server_time = number_format(round($sec * 1000 + $usec * 1000), 0, '', '');    $client_time = $_POST["date_u"];    $milli_diff  = $server_time - $client_time;    echo "<br/>COMPUTED TIME DIFFERENCE BETWEEN SERVER AND CLIENT: $milli_diff MS";    echo PHP_EOL;    // ACTIVATE THIS TO SEE THE POST ARRAY    // var_dump($_POST);    // SERVER SECONDS SINCE THE EPOCH    $server_timestamp = time();    // CLIENT JAVASCRIPT MILLISECONDS SINCE THE EPOCH    $client_millitime = $_POST["date_u"];    $client_timestamp = (int)round($client_millitime / 1000.0);    $timestamps_diff  = $server_timestamp - $client_timestamp;    echo "<br/>ACCORDING TO THE VALUE FROM dateObject.getTime()";    echo "<br/>TIME FROM CLIENT POST TO SERVER PROCESSING IS $timestamps_diff SECONDS";    echo "<br/>CLIENT ISO8601 DATETIME IS " . date('c', $client_timestamp);    echo PHP_EOL;    // CLIENT'S OFFSET FROM GMT / UTC    $client_offset_hours = (int)round($_POST["date_O"] / 60);    echo "<br/>ACCORDING TO THE VALUE FROM dateObject.getTimezoneOffset()";    echo "<br/>CLIENT IS LOCATED $client_offset_hours HOURS FROM UTC";    echo PHP_EOL;    // CLIENT'S DATE FROM THE POSTED STRINGS INTO A TIMESTAMP    $client_timestamp = strtotime    (       $_POST["date_Y"]    . '-' . $_POST["date_m"]    . '-' . $_POST["date_d"]    . 'T' . $_POST["date_h"]    . ':' . $_POST["date_i"]    . ':' . $_POST["date_s"]    )    ;    if ($client_timestamp === FALSE) echo "<br/>POST DATA IS BOGUS";    echo "<br/>ACCORDING TO THE SEVERAL VALUES FROM dateObject.get***()";    echo "<br/>CLIENT ISO8601 DATETIME IS " . date('c', $client_timestamp);    echo "<br/>CLIENT PRETTY DATE IS " . date('l, 	he jS of F Y g:i:s A', $client_timestamp);    echo PHP_EOL;}// CURRENT SERVER INFORMATIONecho "<br/>THE SERVER TIMEZONE IS " . date_default_timezone_get();echo "<br/>THE SERVER DATETIME IS " . date('c');// END OF PHP - USE HTML AND JS TO CREATE THE FORMecho "</pre>" . PHP_EOL; ?><form id="d" method="post"><input name="date_O" id="dateTime_O" type="hidden" /><input name="date_u" id="dateTime_u" type="hidden" /><input name="date_Y" id="dateTime_Y" type="hidden" /><input name="date_m" id="dateTime_m" type="hidden" /><input name="date_d" id="dateTime_d" type="hidden" /><input name="date_h" id="dateTime_h" type="hidden" /><input name="date_i" id="dateTime_i" type="hidden" /><input name="date_s" id="dateTime_s" type="hidden" /><input type="submit" value="CHECK CLIENT DATETIME" onClick="grabTime();" /></form><!-- NOTE THIS WILL GIVE YOU THE VALUES AT AT SUBMIT TIME --><!-- MAN PAGE REF: http://www.w3schools.com/jsref/jsref_obj_date.asp --><script type="text/javascript">function grabTime(){    var dateObject = new Date();    document.getElementById("dateTime_O").value = dateObject.getTimezoneOffset();    document.getElementById("dateTime_u").value = dateObject.getTime();    document.getElementById("dateTime_Y").value = dateObject.getFullYear();    document.getElementById("dateTime_m").value = dateObject.getMonth() + 1;    document.getElementById("dateTime_d").value = dateObject.getDate();    document.getElementById("dateTime_h").value = dateObject.getHours();    document.getElementById("dateTime_i").value = dateObject.getMinutes();    document.getElementById("dateTime_s").value = dateObject.getSeconds();}</script>                                          

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