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PHP - Sleep
I have a download page for my website and I tried using sleep to delay before the user can download an item. Right now I am using javascript to display a count down and the download link is in a hidden div and I wanted to have a time in php when the user goes to the page the timer starts and then echos the download link instead it being visible in the source code.
<script> <!-- // var milisec=0 var seconds=30 document.counter.d2.value="30" function display(){ if (milisec<=0){ milisec=9 seconds-=1 } if (seconds<=-1){ milisec=0 seconds+=1 } else milisec-=1 document.counter.d2.value=seconds+"."+milisec setTimeout("display()",100) } display() --> </script> <div id="hid" style="visibility:hidden"><center><a href="upload/'.$row[4].'/'.$row[1].'"><img src="images/download.png" width="200" height="55" border="0" /></a></center></div> <script type="text/javascript"> function showIt() { document.getElementById("hid").style.visibility = "visible"; } setTimeout("showIt()", 30000); // after 1 sec </script> Similar TutorialsIn one of my servers when ever I call sleep or usleep functions my script sleeps and never wakes up, Any suggestion on what can cause the issue? my php -v output: Code: [Select] PHP 5.2.17 (cli) (built: Jan 24 2012 20:49:48) Copyright (c) 1997-2010 The PHP Group Zend Engine v2.2.0, Copyright (c) 1998-2010 Zend Technologies with the ionCube PHP Loader v4.0.12, Copyright (c) 2002-2011, by ionCube Ltd. I have this code:
<html>
<body>
<?php
echo date('h:i:s'), "<br>";
sleep(5);
echo date('h:i:s'), "<br>";
echo "Your Pizza: ", $_POST["Pizza"];
echo " Has Been Sent To The Counter";
?>
</body>
</html>
which gives me this result:
07:41:06 I can't seem to get the page to sleep at all.
My intention is to achieve this a page that will display the message above for 5 seconds then run a relocation to the main page. but for now just making the page sleep would be of benefit.
any help would be appreciated. I am a beginner so I am expecting this to be something simple i have missed. When you use the sleep function in a script, will the script resume from that exact spot? I guess what I need to know is will it break an upload to MySql database of a csv file or will the whole file be uploaded? Thank All Hi, I am trying to loop a script every 10 seconds but am getting the following error: Fatal error: Maximum execution time of 60 seconds exceeded Part of the code is: <?php while (1) { echo "hello"; sleep(10); ob_flush; flush(); } ?> I have put echo "hello" just to test before adding the script. Is there a correct way to do this loop? also running this the page struggles and says it is still loading. Well PHP manual says that the script execution will be delayed by $x seconds if you write a codes like this: Code: [Select] $x = 5; //5 secs sleep($x); Now I have this script in which I write the four lines to the screen one by one, each should be delayed by 5 secs after the last line is output to the screen. It does not work out at all... Code: [Select] echo "Update setting 1:"; sleep(5); echo "Success! <br>Updating setting 2"; sleep(5); echo "Success! <br>Updating setting 3"; sleep(5); echo "Success! <br>Updating setting 4"; Instead, the entire script execution is delayed by 15 secs, with all four lines output at the same time. Why is this happening? Is there a way to fix it? Please help... Hi All, I'm new to PHP and I'm probably making a fundamental mistake somewhere, however, enough time wasted, I thought you might be able to shed some light on my problem. I basically have a php script running with nginx and fast_cgi. The whole script is just a large switch statement that does some matching against the request strings and returns a template rendered by Tenjin. It all works fine and it's quite performant based on a simple curl-loader test. The simple performance figures are taken from curl-loader and show 400 CAPS (Call Attempts Per Second). The test is 200 clients requesting the same url for 100 cycles. The problem arises when I introduce a "sleep" into the php code for 150 milliseconds, which is my basic idea of introducing latency to the system. The performance for the same test of 200 clients * 100 cycles produces 55 CAPS which is a huge drop in performance based on 150 millisecond delay. The sleep method used is "usleep" and I've also tried "time_nanosleep". I know there's not a huge amount of info there but based on performance figures above, is there something fundamental/trivial I'm missing or doing??? Are there any known issues with the sleep methods??? I've tried setting 'set_time_limit(0)' before the sleep call but that didn't help. Any advice you can offer is greatly appreciated.. I want the login script to echo out a statement, and then after 5 seconds (if the user hasn't clicked the link manually) I want it to redirect with the header redirect. I'm using the sleep function for the delay of the redirect. Here's the concerned portion of the login script: // check to see if the INPUT DATA matches the DATABASE COLUMNS! if ($nickname == $dbuser_name && sha1($password) == $dbuser_password) { // set a session after login $_SESSION['user_name'] = $dbuser_name; $_SESSION['user_id'] = $dbuser_id; echo "<center>You're logged in! <a href='01.php'>Click here</a> to go to the main page.</center>"; sleep(5); // seconds to wait header ('Location: 01.php'); // password incorrect error message } else { echo "<center>Incorrect password!</center>"; } But the echo statement never gets printed out, any idea why it gets swallowed by the sleep function? |
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