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PHP - Detect Whether The Page Was Refreshed
How can I detect if the page was refreshed? I thought the following worked, however, after much head scratching, discovered it does not work for a POST request using the Chrome browser. Thanks
<?php
$refresh=isset($_SERVER['HTTP_CACHE_CONTROL']) && $_SERVER['HTTP_CACHE_CONTROL'] === 'max-age=0';
echo(($refresh?'refresh':'not refresh').'<br>');
echo('$_GET<pre>'.print_r($_GET,1).'</pre>');
echo('$_POST<pre>'.print_r($_POST,1).'</pre>');
?>
<ul>
<li><a href="refresh.php?id=1">one</a></li>
<li><a href="refresh.php?id=2">two</a></li>
<li><a href="refresh.php?id=3">three</a></li>
</ul>
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<input type="text" name="text" value="hello">
<input type="submit" name="submit" value="submit">
</form>
Similar TutorialsHello all, As the title says: For sake of example, let's say I have a form with a couple text boxes and a submit button. When you hit submit, the data from the text boxes is translated into a database record. Howver, refershing the page will this record again and again -- which I do not want. How can I prevent this? Keeping in mind the business logic of my applicatoin allows the same record to be entered twice -- however, it should only happen if the user intentionally visits the form agian, and enters the same data. It should not happen on a page refresh. I assume this is a common problem...? Any thoughts? Thanks! when the user clicks the submit button from a html form, it needs to go back two pages with that loaded page refreshed. for the javascript i only have history.go(-2); with php, I have tried cookies and sessions which i discovered that neither will work because the loaded page is not refreshed. I could do a html body onload but that would break the w3c validator. what are my options?
Hi Guys, Im trying to create a registration form so users can sign up to my website, however i have noticed that when the page is refreshed the form automatically submits. Please could somebody help me stop this? Thanks <body> <form name="registration_form" method="post" onsubmit="return Validate();"> First Name: <input type="text" name="first_name"><br /> Last Name: <input type="text" name="last_name"><br /> Email: <input type="text" name="email"><br /> Confirm Email: <input type="text" name="confirm_email"><br /> Username: <input type="text" name="username"><br /> Password: <input type="password" name="password"><br /> Confirm Password: <input type="password" name="confirm_password"><br /> <input type="submit" value="Register"> </form> <?php $connect=mysql_connect("localhost","leemp5_admin","p7031521"); mysql_select_db("leemp5_database",$connect) or die (mysql_errno().":<b> ".mysql_error()."</b>"); $insert_query = 'insert into users (username,first_name,last_name,email,password) values ( "' . $_POST['username'] . '", "' . $_POST['first_name'] . '", "' . $_POST['last_name'] . '", "' . $_POST['email'] . '", "' . $_POST['password'] . '" )'; mysql_query($insert_query); ?> </body> Hi guys, On my website i have a message inbox, and the code below is used to display and delete messages. When i tick the checkbox and click the delete button, the message gets deleted. The page appears to refresh after the submit button is clicked, however the message remains in the inbox, i have to refresh the page a second time for the message to disappear. Im trying to get it that when i press the submit button and the page reloads, the message disappears. Does anybody know of a technique that im not using or does anybody know if the code im using is wrong? <?php $messages_query = mysql_query("SELECT * FROM messages WHERE recipient='$username'"); if (mysql_num_rows($messages_query) > 0) { echo "<form method='POST' action='inbox.php'>"; while ($messages_row = mysql_fetch_array($messages_query)) { if ($messages_row['message_read'] == 0) { echo "<div style='background-color:#FFCCCC;'>"; } $message_id = $messages_row['id']; echo "<a href='message.php?id=$message_id'>"; echo "From: " . $messages_row['sender']; echo "Subject: " . $messages_row['subject'] . "<br />"; echo "</a>"; echo "<input type='checkbox' name='message[]' value='$message_id' />"; if ($messages_row['message_read'] == 0) { echo "</div>"; } } } else { echo "No messages"; } if ($submit) { foreach ($_POST['message'] as $msgID) { mysql_query("DELETE FROM messages WHERE id='$msgID'"); } } ?> <html> <input type="submit" name="submit" value="Delete" /> </form> </html> Many thanks i have a problem i just noticed....i've built a shopping cart that totals quantities of items and shipping etc then a submit button to a payment page... but if a user refreshes the same page after first coming to the cart page it messes up all the totals and data..... i know this has to be a common problem with webpages... does anyone have any advice on combating this issue? any advice is much appreciated..thanks! When I use the following code, it doesn't print out "test" until after I refresh the page. unset($_SESSION["product"]);
if ( !empty($_SESSION["product"]) && ($_SESSION["product"] != NULL)) { When I use: var_dump($_SESSION["product"]); It shows: array(0) { } I'm wondering it that's the problem. That it's array(0) when it should be array(). Hello. Would php be the right thing to use in regards to monitoring changes in html on certain pages, Basicly, I'd need it to be something like: "Page last changed: 2 Days, 4 Hours, 34 Minutes and 13 Seconds ago." What would I use for this? Thanks Hey all! Well the title is quit clear! I wanted to know how I can, through PHP, detect on a webpage if it uses the header() function to redirect to another page, in php! ( something like this : header('Location h31uh23i.php'); ) I think I need to use cURL for this! Thank you very much if you can help me! Folks, I am trying to grab the value selected in a Dropdown, with $_GET['q']. Then i am echoing the grabbed value. Funny thing is, when i select value from HTML dropdown (onchange="location=this.value"), and when a new value is selcted, it appaears in url like this: Quote http://www.abc.com/?search=selected-value.html But when i try to grab and echo the value of 'q' it gets passed only when i refresh the page and not when i change my selecting in dropdown. Am not sure whats happening, can someone help me on this? Cheers NT Code: [Select] if ($showigiteidimage) { $igitwid_divlnk = "onclick=location.href='" . get_permalink($igitwid_result->ID) . "'; style=cursor:pointer;"; $igitwid_output .= '<li id="igit_wid_rpwt_li" style="height:' . $igitwid_height . 'px; padding-bottom: 10px;" ' . $igitwid_divlnk . '>'; $igitwid_output .= '<div id="igit_wid_rpwt_main_image" style="float:left;"> <a href="' . get_permalink($igitwid_result->ID) . '" target="_top"><img src="<?php $values = get_post_custom_values("tj_video_img_url"); echo $values[0]; ?>" id="igit_rpwt_thumb" ></a></div>'; the prb is image src cant read the php code , what to do ? please helpppppppppp I am making a demo page that I want to add a form to. The way I want this for to work is. Say you are at demo.com Now you are a client I am working with so I have given you a number. This form will as for that number and on submit it will take you to demo.com/"client number" Here is what I have done. What is in my index.php <form> <form action="search.php"> <input id="button" name="button" type="text" /> <input type="button" value="SEARCH" > </form> What is in my search.php <?php $newurl = "http://demo.mysite.com/"; $newurl .=$_GET['button']; echo "$newurl"; /*header("Location: $newurl"); */ ?> -------------------------------------------------- I have also tried taking out the search.php and having everything in index.php <form> <form> <input id="button" name="button" type="text" /> <input type="button" value="SEARCH" > </form> <?php $newurl = "http://demo.mysite.com/"; $newurl .=$_GET['button']; echo "$newurl"; /*header("Location: $newurl"); */ ?> Hi, Would time() produce the timestamp based on your time environment or the servers?, if it produces the timestamp based on the server; how would I generate a timestamp (which I can later use within date()); so it displays to the users timezone? Ok, so I have a code that looks like so: Code: [Select] <script type="text/javascript"> var ng_config = { assests_dir: 'ng/assets/' // the path to the assets directory } </script> <script type="text/javascript" src="ng/ng_all.js"></script> <script type="text/javascript" src="ng/components/calendar.js"></script> <script type="text/javascript"> var my_cal; ng.ready(function(){ // creating the calendar var my_cal = new ng.Calendar({ input: 'enddate', start_date: 'year - 1', // the start date (default is today) display_date: ng.get('startdate').value, // the display date (default is start_date) server_date_format: 'm/d/Y' // changing the server date format for a specific calendar. }); }); var my_cal1; ng.ready(function(){ // creating the calendar my_cal1 = new ng.Calendar({ input: 'startdate', start_date: 'year - 1', // the start date (default is today) display_date: new Date(), // the display date (default is start_date) server_date_format: 'm/d/Y' // changing the server date format for a specific calendar. }); }); how do I detect the months that pass between the two dates that are selected using a popup calendar using php so that my register page know which month to display the event under. Does this make sense? Hi, I have tried a lot of different scripts for detect and redirect for device for mobile and they seem to work ok on mac but ie does not load the page are there any scripts that work? I have a main site that sits at the usual www.domain.co.uk address and then i have a mobile site at www.domain.co.uk/phone i want to be able to have nay mobile users when accessing www.domain.co.uk be automaticly redirected to www.domain.co.uk/phone with that working in ie? any help please? thanks, Hi everyone. I have a small problem. I have a database that shows student images, in the format of 1234.jpg but the file name extension is in both upper case and lower case. My server OS is linux ubuntu. apache2 php5. Linux see these as 2 different file so will not show the upper case ones. 1234.JPG What i have already is working but for lower case only, i need something to detect when the extension is in uppercase and change accordingly. This is what i have now that works for lower case only. <img src=../images/mbr_images/<?php echo H($mbr->getBarcodeNmbr());?>.jpg height=150 width=100 border=1px </img This is what i have tried but gives me a filename of "1234jpg" see the "." is missing? and is still lower case. <img src=../images/mbr_images/<?php echo H($mbr->getBarcodeNmbr()); $image = jpg; $image2 = JPG; if ($image = $image) { echo $image; } else { echo $image2; };?> height=150 width=100 border=1px </img> can anyone offer any help please? TIA Peter Basically what the title says, I want to detect a upload and post a notification, how would i do this? When displaying a webpage within iframe of facebook fan page, how I can detect that my page is viewed within the facebook iframe? I want to have a if else statement to change something within the page if it is viewed through facebook fanpage (not by direct visit). Is there a way, and if so how would I detect the state of the user on my site. Like by using their ip? Thanks! This topic has been moved to PHP Regex. http://www.phpfreaks.com/forums/index.php?topic=326450.0 Why does the following code not detect the following file? After I select a file and I click upload, it goes back to the upload form. <?php include_once("includes/config.php"); //grab their type if(!$_COOKIE['user']) { //they are a guest $info = "Guest"; } else { //they are a user $info = $_COOKIE['user']; } if(!$_FILE['file']) { $content = '<form action="submit.php" method="post" enctype="multipart/form-data"> <label for="file">SELECT SKIN:</label> <input type="file" name="file" id="file" /> <input type="submit" name="submit" value="Submit" /> </form>'; } else { if($_FILES['file']['error'] > 0) { $content = "There was an error trying to upload the skin ".$_FILES['file']['name'].".".$_FILES['file']['error']; } } ?> <html> <head> <title><?php $title; ?></title> <link rel="stylesheet" type="text/css" href="theme/style.css" /> </head> <body> <div id="header"> MCSkins </div> <?php echo "Submitting as: ".$info."<br/><br/>".$content; ?> </body> </html> |
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