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PHP - Refreshing Page Issue
Hi, In the following code I'm using a combo box to select a relay and activate it. The code works but if I refresh the page, the last selected relay is activated again. How can I reset the page to default to value '0' which has no relay control? TIA
<!DOCTYPE html>
<html>
<head>
<title>Relay control</title>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
<link rel="stylesheet" type="text/css" href="style.css" />
</head>
<body>
<h2><center>Status y control de relés</center></h2>
<?php
$arrleds = array();
if ($_SERVER["REQUEST_METHOD"] == "POST") {
$selected_val = $_POST['sel'];
if ($selected_val == '1'){
$cmd = exec("sudo ./trigger.py b 0");
}
elseif ($selected_val == '2'){
$cmd = exec("sudo ./trigger.py b 1");
}
elseif ($selected_val == '3'){
$cmd = exec("sudo ./trigger.py b 2");
}
....
else {}
}
?>
<table class="center">
<tr>
<td></td>
<td><h1>Activación de relé</h1>
<form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post">
<select name='sel' onchange='submit();'>
<option value='0'>Sin activar</option> <!-- no action -->
<option value='1'>Secadora 1</option>
<option value='2'>Secadora 2</option>
<option value='3'>Lavadora S</option>
....
</select>
</form>
</td>
<td></td>
</tr>
<tr>
<td></td>
<td><a href="index.php">Home</a>
<td></td>
</tr>
</table>
</body>
</html>
Similar Tutorialsi have a form with two buttons, one is for submitting the form while button is for generating a random a code and placing it in a textfield. this works fine but the problem is anytime i click on the generate button, it refreshes the page thereby validating the form , which i don't want. How do i make it perform the function without refreshing the page.... This topic has been moved to JavaScript Help. http://www.phpfreaks.com/forums/index.php?topic=330523.0 This topic has been moved to Ajax Help. http://www.phpfreaks.com/forums/index.php?topic=347117.0 Hi, I have a "user profile" page and it has a profile image upload form. I have it so that the old profile image is deleted, and the new image is uploaded and the new image is echoed out using the name of the new file from the database. The problem is, when I click submit to add the new image, the old image still stays there and the new image does not show up. Only when I manually click refresh on my browser does the new image show up. That is going to be bad for my users. Please if anyone can help, I'd greatly appreciate it. Below is the code I am using to delete the old image, and code to upload the image as well, when the photo upload form is used. Code: [Select] if(isset($_POST['photoUpload'])) { if(file_exists("images/".$currentUser.".jpg")){ unlink("images/".$currentUser.".jpg"); clearstatcache(); } //reads the name of the file the user submitted for uploading $image=$_FILES['image']['name']; //if it is not empty if ($image) { //get the original name of the file from the clients machine $filename = stripslashes($_FILES['image']['name']); //get the extension of the file in a lower case format $extension = getExtension($filename); $extension = strtolower($extension); //if it is not a known extension, we will suppose it is an error and will not upload the file, //otherwise we will do more tests if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png") && ($extension != "gif")) { //print error message echo '<h1>Unknown extension!</h1>'; $errors=1; } } //end if here //was else here //get the size of the image in bytes //$_FILES['image']['tmp_name'] is the temporary filename of the file //in which the uploaded file was stored on the server $size=filesize($_FILES['image']['tmp_name']); //compare the size with the maxim size we defined and print error if bigger if ($size > MAX_SIZE*1024) { echo '<h1>You have exceeded the size limit!</h1>'; $errors=1; } //we will give an unique name, for example the time in unix time format $image_name= $currentUser .'.'.$extension; //$image_name=time().'.'.$extension; //the new name will be containing the full path where will be stored (images folder) $newname=$image_name; //"images/". // Connects to your Database mysql_connect("host", "user", "pass") or die(mysql_error()); mysql_select_db("database") or die(mysql_error()) ; //we verify if the image has been uploaded, and print error instead $copied = copy($_FILES['image']['tmp_name'], "images/".$newname); // update the photo name in the database $result = mysql_query("UPDATE users SET profilePhoto='$newname' WHERE username='$currentUser'") or die(mysql_error()); if (!$copied) { echo '<h1>Copy unsuccessful!</h1>'; $errors=1; } else{ $dir="images/"; echo "<p>Profile Picture Change Successful!</p>"; echo "<img src='{$dir}{$newname}' alt='{$newname}' height='200' width='200' />"; echo "<p></p>"; } } Here is my code if(isset($_POST['pass_btn'])) { $numchars = 8; $chars = explode(',','2,3,4,5,6,7,8,9,a,b,c,d,e,f,g,h,i,j,k,m,n,p,q,r,s,t,u,v,w,x,y,z,2,3,4,5,6,7,8,9,A,B,C,D,E,F,G,H,J,K,L,M,N,P,Q,R,S,T,U,V,W,X,Y,Z,2,3,4,5,6,7,8,9'); $password=''; for($i=0; $i<$numchars;$i++) { $password.=$chars[rand(0,count($chars)-1)]; } } This is set up so when a person pressing the pass_btn, a password is provided. This works just fine. However, it refreshes the page and clears all other data that user may have entered. Suggestions? I'm using paypal PDT, so when the user has made payment he gets directed back to my site, on that page it executes a special sql query. I noticed I can refresh the page to make duplicate sql queries. How can I avoid this?? Here is my add driver button <!DOCTYPE html> <html> <head> <script> $(document).ready(function() { if($("#getPIN").click(function(){ <?php $char = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVW XYZ1234567890'; $generated_password = substr(str_shuffle($char), 0, 10); ?> var genNumber; $("#txtpin").val() = genNumber; return false; })); }); </script> </head> <body> <input type = "text" name = "txtpin" id = "txtpin" value = ""> <input type = "button" name = "getPIN" id = "getPIN" value = "getPIN"> </body> </html> Hey you guys need your help... Basically what im trying to do is when the user clicks the getPIN button, the value generated using php is assigned to the txtpin textfield without refreshing the page.... thanks alot guys.... This topic has been moved to JavaScript Help. http://www.phpfreaks.com/forums/index.php?topic=349726.0 hi i want a page to display 4 different pages within it but each of them have a auto refresh ability i dont know if this can be done in php as they woudl only refresh preferably when the users accept or decline the job but can set it to every 10 s if needed I have made a website that deals with the sales of different products. It handles the total sales of a specific product. One of the aspects of the website is that it can change the current sales data of the products. At the moment I can change the sales figures fine however I have to click the submit button once and then physically refresh the page for it to change the data in the table. Is there a way that I can automatically refresh the page once the submit button is pressed? I have tried using headers for example: Code: [Select] if (!empty($_POST['NSales'])) { header('location: currentpage.php'); } however this just constantly refreshes the page. Any help would be greatly appreciated Hi all, I have a list of information that needs to be individually deleted from mysql after 3 months of being on the website. How would I go about this - can one make a php script run 24 hours a day or maybe just refresh at a certain time everyday to check each row (about 300 rows total) in a mysql db and delete as appropriate? Many thanks Hello. I'm using a PHP/CGI Upload Script -tesUpload. U can see the uploader at http://www.mintload.com/upload/upload-single.php As you can see, the percentage doesnt reload (its an iframe). On Firefox, if u right click on frame (0%) and select "open frame in new tab" or show only frame, u see it movin' and refreshing. Basically the iframe /fileprog.php calculates the percentage uploaded and refreshes itself to get new percentage every second. The code for upload-single.php is : <?php require_once("upload_helper.php"); $sid = md5(uniqid(rand())); ?> <html> <head> <script language="javascript" type="text/javascript" src="upload.js"></script> <link rel="stylesheet" href="upload.css" type="text/css" media="screen" title="Upload" charset="utf-8" /> <script language="javascript"> function beginUpload(sid) { document.postform.submit(); var pb = document.getElementById("progress"); pb.parentNode.parentNode.style.display='block'; new ProgressTracker(sid,{ progressBar: pb, onFailu function(msg) { Element.hide(pb.parentNode); alert(msg); } }); } </script> </head> <body> <form target="_top" enctype="multipart/form-data" name="postform" action="/cgi-bin/upload.cgi?sid=<?php echo $sid; ?>&target=<?php echo normal_target('receive.php') ?>" method="post"> <div class="inputhead">File 1</div> <input type="file" size="50" name="file_1" /><br/> </form> <div id="progressbox" style="display: none;"><img src="http://www.remit2home.com/remittance/images/mmm_loading.gif" alt="uploading..."> Uploading now... <div class="progresscontainer"><div class="progressbar" id="progress"></div></div> </div> <iframe src="http://mintload.com/upload/fileprog.php?sid=<?php echo $sid; ?>" width=50 height=50 frameborder=0 border=0 allowtransparency="true" ></iframe> uploaded <!--img src="http://www.remit2home.com/remittance/images/mmm_loading.gif" alt="uploading..."--> <!--iframe for percentage--> <p align="right"><input type="image" src="http://mintload.com/images/btn_upload.png" onclick="beginUpload('<?php echo $sid ?>');" alt="Upload" ></p> </body> </html> fileprog.php is alright. I need the percentage in iframe to refresh even when embedded onto upload-single.php Please help Thank you. I have some issue with the website just created specifically http://ecolandscaping.co/index.php?m=3 and hosted on the 000webhosting.com. It loads the page slowly. Things what i have consideredto trie to improve better performance: * optimized CSS files * optimized MySQL queries with specifying the rows wanted (SELECT ID, IMAGE.....) * avoid to select an image saved as blob if not necessary etc. * made different image retrieving php files P.S. the website is small of size approx 700KB for loading. Problem is that not all the images (saved in MYSQL BLOB) are loaded successfully. Could anyone have a look and advice what else could cause the performance issue. P.S.S. I do take in account that this isthe free hosting and may cause some problems I have an issue with refreshing pages on the website. I have a simple code using php to login to the website fill in a form and exit. The code works fine and adds the enterd data correctly in the table in MySql. I have another link where the user can retrieve the recods to update any fields after logging in. The problem I encountered was that the retreving records page does not show the newly added records until the page is refreshed on the server. Whenever the new record does not show, I just open the php code page save without making any changes to the code (just to enforce new time stamp), upload the page to the server only when I do that the new record shows. I would appreciate any help to solve this problem and not having to upload the page to get it to work. Thanks, MB Hello. I'm using a php script to upload file. I've used an iframe inserted on the upload page that refreshes every second/3sec. to display percentage uploaded. forget percentage, lets take a simple example. Presently, my iframe displays last two digits of PHP time() function that change constantly. If you see the live example at: http://mintload.com/upload/upload-single.php The last two digits of time() function are shown and iframe is refreshed every 1 sec. But, the moment one clicks "Upload" button, the file starts uploading, but iframe no more refreshes & freezes. In IE7 it works fine. Why not in Firefox Latest Ver: 3.6 ? code for iframe: Code: (php) [Select] header("refresh:1; $_SERVER[PHP_SELF]"); echo substr(time(),-2,2); My point is, just as in IE, my iframe shouldnt freeze refreshing even if a file is being uploaded. Any code/functions? The problem is taking place in Firefox. Please help. Thank you. Hello! My server hosting company has updated PHP from 4 to 5 version, and now the header function doesn't work very well anymore. It does load the new page everytime, like it should, but the data is not always refreshed. Not until I click "reload current page" from the browser. I'm using Firefox 3.6.3. Here's the code which worked just fine few days ago: Code: [Select] $url="thepage.php"; header("Location: ".$url); die(); I tried something like this, but that doesn't work either: Code: [Select] $url="thepage.php"; header("Refresh: 0; url=".$url); die(); This is really nasty problem... How can I fix it? Hi I made a simple chat script with pagination in MySQL (yes I know I should change to MySQLi) but just bare with me please My script is working fine when I post messages, but I have a problem.. Each time I refresh my page my previous message gets reposted again. Is there maybe a way I can fix this problem?
<html>
<?php
define('TIMEZONE', 'Africa/Harare');
date_default_timezone_set(TIMEZONE);
// database connection info
$conn = mysql_connect('****','******','*****') or trigger_error("SQL", E_USER_ERROR);
$db = mysql_select_db('*****'',$conn) or trigger_error("SQL", E_USER_ERROR);
// find out how many rows are in the table
$sql = "SELECT COUNT(*) FROM StringyChat";
$result = mysql_query($sql, $conn) or trigger_error("SQL", E_USER_ERROR);
$r = mysql_fetch_row($result);
$numrows = $r[0];
// number of rows to show per page
$rowsperpage = 20;
// find out total pages
$totalpages = ceil($numrows / $rowsperpage);
// get the current page or set a default
if (isset($_GET['currentpage']) && is_numeric($_GET['currentpage'])) {
// cast var as int
$currentpage = (int) $_GET['currentpage'];
} else {
// default page num
$currentpage = 1;
} // end if
// if current page is greater than total pages...
if ($currentpage > $totalpages) {
// set current page to last page
$currentpage = $totalpages;
} // end if
// if current page is less than first page...
if ($currentpage < 1) {
// set current page to first page
$currentpage = 1;
} // end if
// the offset of the list, based on current page
$offset = ($currentpage - 1) * $rowsperpage;
// INSERT INTO DATABASE
$ip = $_SERVER["REMOTE_ADDR"];
$name = $_SERVER["HTTP_X_MXIT_USERID_R"];
$msg = $_POST['message'];
$time = date("U");
$mxitid = $_SERVER["HTTP_X_MXIT_USERID_R"];
if(!isset($mxitid, $name ))
{
$mxitid = "DEFAULT";
$name = "SYSOP";
}
$sqli = "INSERT INTO StringyChat (StringyChat_ip, StringyChat_name, StringyChat_message, StringyChat_time, mxit_id)
VALUES ('$ip', '$name', '$msg', '$time', '$mxitid')";
$result = mysql_query($sqli, $conn) or trigger_error("SQL", E_USER_ERROR);
// get the info from the db
$sql = "SELECT StringyChat_time, StringyChat_name, StringyChat_message FROM StringyChat ORDER BY id DESC LIMIT $offset, $rowsperpage";
$result = mysql_query($sql, $conn) or trigger_error("SQL", E_USER_ERROR);
function filterBadWords($str)
{
$result1 = mysql_query("SELECT word FROM StringyChat_WordBan") or die(mysql_error());
$replacements = ":-x";
while($row = mysql_fetch_assoc($result1))
{
$str = eregi_replace($row['word'], str_repeat(':-x', strlen($row['word'])), $str);
}
return $str;
}
// while there are rows to be fetched...
while ($list = mysql_fetch_assoc($result))
//while (($pmsg = $list['StringyChat_message'] == $bwords) ? ":-x" : $list['StringyChat_message'])
{
// echo data
//echo ($pmsg = ($list['StringyChat_message'] == $bwords) ? ":-x" : $list['StringyChat_message'])
print '<span style="color:#828282">' . '(' . date( 'D H:i:s', $list['StringyChat_time'] ) . ') ' . '</span>' . '<b>' . $list['StringyChat_name'] . '</b>' . ' : ' . filterBadWords($list['StringyChat_message']) . '<br />';
}
// end while
/****** build the pagination links ******/
// range of num links to show
$range = 3;
// if not on page 1, don't show back links
if ($currentpage > 1) {
// show << link to go back to page 1
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=1'><<</a> ";
// get previous page num
$prevpage = $currentpage - 1;
// show < link to go back to 1 page
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$prevpage'><</a> ";
} // end if
// loop to show links to range of pages around current page
for ($x = ($currentpage - $range); $x < (($currentpage + $range) + 1); $x++) {
// if it's a valid page number...
if (($x > 0) && ($x <= $totalpages)) {
// if we're on current page...
if ($x == $currentpage) {
// 'highlight' it but don't make a link
echo " [<b>$x</b>] ";
// if not current page...
} else {
// make it a link
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$x'>$x</a> ";
} // end else
} // end if
} // end for
// if not on last page, show forward and last page links
if ($currentpage != $totalpages) {
// get next page
$nextpage = $currentpage + 1;
// echo forward link for next page
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$nextpage'>></a> ";
// echo forward link for lastpage
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$totalpages'>>></a> ";
} // end if
/****** end build pagination links ******/
?><br>
// FORM
<body>
<form name="StringyChat_form" method="POST" action="<? echo $_SERVER['REQUEST_URI']; ?>">
<br>
<input type="hidden" name="name" class="StringyChatFrm" value="<?php $name ?>" size="20" >
<br>
<i>Type your Message here...</i>:<br>
<textarea name="message" class="StringyChatFrm" cols="20" rows="4"></textarea>
<br>
<input name="StringyChat_submit" class="StringyChatFrm" type="submit" value="Post Message">
</form>
</body>
</html>
Trying to create a simple login page (and my code is embarassingly disgraceful at this point). In simple terms, I have start_session on three pages. The first page asks for name, the second for password, the third welcomes user. The second page contains $name=$POST['name']; $_SESSION['name']= $name; When I access the page 2, the name is echoed with a greeting and request for password. But after a password submission (whether correct or incorrect) the $name disappears. I am at a loss for why it is not being refreshed or maintained in the session. Any ideas for me? I need to disable a query on the products page. The URL is www.myjabberbox.com If you goto the products page, you'll see when you hover over one of the three products, you can click it to take you to another page of that product. I want to disable that. I thought the code that I'd need to modify would be under the products-page.php file but I can't seem to find the code. Notice also when you hover over the products, a mouseover color of black happens around the image/text frame, I'd like to keep that, just disable the linking... Thanks |
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