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You can also store sessions to database it is a good way to manage user sessions.
Arunkumar
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what is the regex to replace only the last comma, using preg_replace? Thanks
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It goes something like /,[^,]*$/ Fire up expresso and try it. The logic is "comma, any number of non-commas, end" So all but the last comma will fail the second part.
Cheers,
Peter
ps There is a regex forum here. Next time...
Software rusts. Simon Stephenson, ca 1994.
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hello there
i want to update multiple rows which comes from a dynamic table in Dreamweaver CS5 (a loop in php) here is my Mysql table :
CREATE TABLE `register`.`s_lessons` (<br />
`lid` int( 5 ) NOT NULL ,<br />
`sid` int( 9 ) NOT NULL ,<br />
`term` int( 5 ) NOT NULL ,<br />
`tid` int( 5 ) NOT NULL ,<br />
`point` double NOT NULL DEFAULT '0',<br />
PRIMARY KEY ( `lid` , `sid` , `term` ) ,<br />
KEY `tid` ( `tid` ) ,<br />
KEY `point` ( `point` )<br />
) ENGINE = MYISAM DEFAULT CHARSET = utf8 COLLATE = utf8_persian_ci;
and this is my page source code:
<?php require_once('../Connections/register.php'); ?><br />
<?php<br />
session_start();<br />
if (!function_exists("GetSQLValueString")) {<br />
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "") <br />
{<br />
if (PHP_VERSION < 6) {<br />
$theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;<br />
}<br />
<br />
$theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);<br />
<br />
switch ($theType) {<br />
case "text":<br />
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";<br />
break; <br />
case "long":<br />
case "int":<br />
$theValue = ($theValue != "") ? intval($theValue) : "NULL";<br />
break;<br />
case "double":<br />
$theValue = ($theValue != "") ? doubleval($theValue) : "NULL";<br />
break;<br />
case "date":<br />
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";<br />
break;<br />
case "defined":<br />
$theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;<br />
break;<br />
}<br />
return $theValue;<br />
}<br />
}<br />
<br />
$colname1_rs1 = "-1";<br />
if (isset($_GET['term'])) {<br />
$colname1_rs1 = $_GET['term'];<br />
}<br />
$colname_rs1 = "-1";<br />
if (isset($_GET['lid'])) {<br />
$colname_rs1 = $_GET['lid'];<br />
}<br />
$colname2_rs1 = "-1";<br />
if (isset($_SESSION['tid'])) {<br />
$colname2_rs1 = $_SESSION['tid'];<br />
}<br />
mysql_select_db($database_register, $register);<br />
$query_rs1 = sprintf("SELECT s_lessons.sid, s_lessons.lid, s_lessons.term, s_lessons.tid, s_lessons.point FROM s_lessons WHERE s_lessons.lid = %s AND s_lessons.term = %s AND s_lessons.tid = %s", GetSQLValueString($colname_rs1, "int"),GetSQLValueString($colname1_rs1, "int"),GetSQLValueString($colname2_rs1, "int"));<br />
$rs1 = mysql_query($query_rs1, $register) or die(mysql_error());<br />
$row_rs1 = mysql_fetch_assoc($rs1);<br />
$totalRows_rs1 = mysql_num_rows($rs1);<br />
$count=mysql_num_rows($rs1);<br />
<br />
<br />
<br />
$editFormAction = $_SERVER['PHP_SELF'];<br />
if (isset($_SERVER['QUERY_STRING'])) {<br />
$editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);<br />
}<br />
<br />
for ($j = 0, $len = count($_POST['lid']); $j < $len; $j++) {<br />
if ((isset($_POST["MM_update"])) && ($_POST["MM_update"] == "form1")) {<br />
$updateSQL = sprintf("UPDATE s_lessons SET point=%s WHERE tid=%s, lid=%s, sid=%s, term=%s",<br />
GetSQLValueString($_POST['point'] [$j], "double"),<br />
GetSQLValueString($_SESSION['tid'], "int"),<br />
GetSQLValueString($_POST['lid'] [$j], "int"),<br />
GetSQLValueString($_POST['sid'] [$j], "int"),<br />
GetSQLValueString($_POST['term'] [$j], "int"));<br />
<br />
mysql_select_db($database_register, $register);<br />
$Result1 = mysql_query($updateSQL, $register) or die(mysql_error());<br />
}<br />
$updateGoTo = "student_lists.php";<br />
if (isset($_SERVER['QUERY_STRING'])) {<br />
$updateGoTo .= (strpos($updateGoTo, '?')) ? "&" : "?";<br />
$updateGoTo .= $_SERVER['QUERY_STRING'];<br />
}<br />
header(sprintf("Location: %s", $updateGoTo));<br />
}<br />
<br />
?><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><br />
<html xmlns="http://www.w3.org/1999/xhtml"><br />
<head><br />
<meta name="keywords" content="" /><br />
<meta name="description" content="" /><br />
<meta http-equiv="content-type" content="text/html; charset=utf-8" /><br />
<title>r</title><br />
<link href="styles/style.css" rel="stylesheet" type="text/css" media="screen" /><br />
<link href="styles/in_styles.css" rel="stylesheet" type="text/css" media="screen" /><br />
</head><br />
<body><br />
<div id="wrapper"><br />
<div id="header-wrapper"><br />
<br />
</div><br />
<!-- end #header --><br />
<div id="page"><br />
<div id="page-bgtop"><br />
<div id="page-bgbtm"><br />
<div id="content"><br />
<div class="post"><br />
<div style="clear: both;"><br />
<form name="form1" id="form1" method="post" action="<?php echo $editFormAction; ?>"><br />
<table border="1" align="center"><br />
<tr><br />
<th>Student ID</th><br />
<th>Lesson ID</th><br />
<th>Semester</th><br />
<th>Point</th><br />
<br />
</tr><br />
<?php do { ?><br />
<tr><br />
<td class="data"><label for="sid[]"></label><br />
<input name="sid[]" type="text" id="sid[]" value="<?php echo $row_rs1['sid']; ?>" size="9" readonly="readonly" /></td><br />
<td class="data"><label for="lid[]"></label><br />
<input name="lid[]" type="text" id="lid[]" value="<?php echo $row_rs1['lid']; ?>" size="5" readonly="readonly" /></td><br />
<td class="data"><label for="term[]"></label><br />
<input name="term[]" type="text" id="term[]" value="<?php echo $row_rs1['term']; ?>" size="4" readonly="readonly" /></td><br />
<td><label for="point[]"></label><br />
<input name="point[]" type="text" id="point[]" value="<?php echo $row_rs1['point']; ?>" size="4" /> <br />
</tr><br />
<br />
<?php } while ($row_rs1 = mysql_fetch_assoc($rs1)); ?><br />
</table><br />
<p><br />
<input type="submit" name="Submit" id="Submit" value="Submit" /><br />
<input type="hidden" name="MM_update" value="form1" /><br />
</p><br />
</form><br />
</div><br />
</div><br />
<div style="clear: both;"><br />
</div><br />
</div><br />
<!-- end #content --><br />
<br />
<!-- end #sidebar --><br />
<div style="clear: both;"> </div><br />
</div><br />
</div><br />
</div><br />
<!-- end #page --><br />
</div><br />
<!-- end #footer --><br />
</body><br />
</html><br />
<?php<br />
mysql_free_result($rs1);<br />
?>
All i want is that when users click on SUBMIT button values of point column in s_lessons(database table) be updated by new entries from user.
i did my best and result with that code is :
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' lid=888, sid=860935422, term=902' at line 1
I would appreciate any idea.
with prior thanks
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Your problem is in the Query you are using to update the record:
UPDATE s_lessons SET point=%s WHERE tid=%s, lid=%s, sid=%s, term=%s
Is not valid Sql, and should be something like
UPDATE s_lessons SET point=%s WHERE tid=%s and lid=%s and sid=%s and term=%s
You might wanna read up a bit on the SQL update syntax[^]
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what a silly mistake!
you are right.i changed it and the problem solved!
thank you very much.
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Does anyone know if samba has certain supported/preferred file systems? ...or does it not matter?
I'll be accessing the share with:
- Ubuntu Lucid
- Windows XP, Vista, 7
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Went with ext4, doesn't seem to really matter since samba doesn't really allow for direct access... Windows machines seem to be ok with it...
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Samba operates through the VFS (virtual file system), so anything you can use in Linux, Samba will be able to use and share it.
--
Kein Mitleid Für Die Mehrheit
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What I'm trying to do should be simple but for some reason it's not. All I want right now is to display one of my session variables on the page (this way I know it's what I think it is).
I have <td><input name="myusername" type="text" id="myusername" style="width:150px"></td> on the first form to get the value and then session_register("myusername"); on the next page to assign the value to the session variable.
I then have (this is the very top of the page (page 3))
<?php
session_start();
if (!session_is_registered(myusername)) {
header("location:login.php");
}
?>
Test
<?php
$test = $_SESSION["myusername"];
echo $test;
?>
On the "last" page... the page isn't redirecting so I know the value is "good" but for some reason I can't get it to display. It's just displaying 'Test'...
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5.1.6
However stupid here realized that he forgot to actually assign the session variable a value. I guess the important thing is I figured it out 
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Thanks for the FYI, I'll account for it now before I forget about it.
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I figured out my problem... as usual forgot the most simple aspect of programming  $_SESSION['myusername'] = $myusername;
I really does help to actually assign a value to something... Hopefully this will help someone else that finds them self in the same lack of sleep state.
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Even though you seem to have found a solution, I have actually found some web hosting to be quite a pain if you are using Sessions. Depends on the provider though. With my current provider it was becoming way to complicated to set up properly so I used another method
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This is just for a small intranet site. I think the most users I've ever had on at one time is 5 
However I'm always looking for ideas.
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Good luck with intranet site hope you don't find too many more issues.
On my website in the end I reverted to cookies. When the user logs in it stores the information they typed in the form in 2 cookies (nom). Then every time any page loads I check it against the database, thus maintaining some form of security
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I was having a heck of a time with cookies in a terminal services environment. Not really sure why that made a difference, but maybe I'll look back into that again in the future.
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Hello all,
In a piece of PHP code, I'm trying to set two styles at the same time for a set of dynamically created divs...
The code I'm trying to use is:
echo('<div id="'.$DivId.'" style=width:'.$width.'; display:none>;');
As you can see $DivId is a variable that depends on a loop.
I need to set the width (another parameter).
And at the beginning that DIV must be not shown hence the display:none.
If I try to modify the style one at a time it works well... I mean that if I try to change the width only or the display only it works well... but I don't know how to chain the two changes.
Any advice?
Thank you in advance! 
PS: I've tried to Google for "php more than one style", "php change styles", "php style guide"... no luck here...
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I tried the solution in the third link and all the solutions that Graham is proposing and none of them worked...
Somehow a problem must be there that doesn't allow it to work... it is like the display:none modifier that I'm adding would avoid anything else to work... 
Thank you for trying!
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I've found the problem...
It happens that the TinyMCE editor window that I'm using in that place doesn't override the style when using display:none in the div that it is contained...
AMAZING.
Well, I've found that this has happened to lots of people and a trick to cheat that... 
It is a PITA when you put efforts and time to solve things that should be working ok...
Many thanks for helping me.
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It looks like you're not quoting the style, so the attribute is being broken on the space in the middle - try this:
echo('<div id="'.$DivId.'" style="width:'.$width.'; display:none>;"');
or this:
echo('<div id="'.$DivId.'" style=width:'.$width.';display:none>;');
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Using the first option (quoted) the width is applied but the display:none is not.
Using the second of those options (no space) the width is not being modified and only display:none works.
PS: it is like if the display:none would destroy all the other options out there...
Thank you for trying...
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That sounds very odd... What is the value of $width?
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I've used 1000 and "100%" without luck... with both numbers removing the display:none it works like charm... 
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CSS values should really have specified units, though the browser will assume pixels if you leave it off - make sure that the generated source looks something like this:
<div id="div0001" style="width:1000px; display:none"> ...content... </div>
or for percentage:
<div id="div0001" style="width:100%; display:none"> ...content... </div>
If this fails to work, then I suspect the problem is somewhere else in the CSS and the DIV is picking up rules from the stylesheet.
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