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I've been looking through dozens of threads on here about this but have yet to find a solution.
I've created a form that is supposed to show database table contents in input boxes, and when the content of the input boxes are changed and submitted the database is supposed to update.
<html>
<head>
</head>
<body>
<?php
$dbhost = '****';
$dbuser = '****';
$dbpass = '****';
$conn = mysql_connect($dbhost, $dbuser, $dbpass);
if(! $conn )
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db('****');
$query = "SELECT * FROM anstalld";
$result = mysql_query($query) or die(mysql_error());
?>
<form method="post" action="<?php $_PHP_SELF ?>">
<table width="400" border="0" cellspacing="1" cellpadding="2">
<tr>
<?php
while($row = mysql_fetch_array($result))
{
$namn = $row['namn'];
$mandag = $row['mandag'];
$tisdag = $row['tisdag'];
$onsdag = $row['onsdag'];
$torsdag = $row['torsdag'];
$fredag = $row['fredag'];
?>
<td width="100"></td>
<td><?=$namn?></td>
</tr>
<tr>
<td width="100">Mandag</td>
<td><input name="mandagid" type="text" value="<?=$mandag?>"></td>
</tr>
<tr>
<td width="100">Tisdag</td>
<td><input name="tisdagid" type="text" value="<?=$tisdag?>"></td>
</tr>
<tr>
<td width="100">Onsdag</td>
<td><input name="onsdagid" type="text" value="<?=$onsdag?>"></td>
</tr>
<tr>
<td width="100">Torsdag</td>
<td><input name="torsdagid" type="text" value="<?=$torsdag?>"></td>
</tr>
<tr>
<td width="100">Fredag</td>
<td><input name="fredagid" type="text" value="<?=$fredag?>"></td>
</tr>
<?php } ?>
<tr>
<td width="100"> </td>
<td> </td>
</tr>
<tr>
<td width="100"> </td>
<td>
<input name="update" type="submit" id="update" value="Update">
</td>
</tr>
</table>
</form>
<?php
if(isset($_POST['update']))
{
$namn = $_POST['namnid'];
$mandag = $_POST['mandagid'];
$tisdag = $_POST['tisdagid'];
$onsdag = $_POST['onsdagid'];
$torsdag = $_POST['torsdagid'];
$fredag = $_POST['fredagid'];
$sql = mysql_query("UPDATE anstalld SET mandag = '$mandag', tisdag = '$tisdag', onsdag = '$onsdag', torsdag = '$torsdag', fredag = '$fredag' WHERE namn = '$namn'");
$retval = mysql_query( $sql, $conn );
if(! $retval )
{
die('Could not update data: ' . mysql_error());
}
echo "Updated data successfully\n";
}
?>
</body>
</html>
The forms show the content of the database fine, but upon updating I get this message:
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 '1' at line 1
I appreciate any help I can get on this.
693
asked Sep 25 '13 01:09
Just insert the symbol @ before the values you want to display in the form. Inserting @ symbol tells the compiler to suppress error due to undeclared variable when the page called for adding new data.
Use mysqli instead of mysql, and you need to pass the database name or schema:
before:
$conn = mysql_connect($dbhost, $dbuser, $dbpass);
after:
$conn = mysql_connect($dbhost, $dbuser, $dbpass, $myDBname);
Update query may have some issues
$query = "UPDATE anstalld SET mandag = '$mandag', tisdag = '$tisdag', onsdag = '$onsdag', torsdag = '$torsdag', fredag = '$fredag' WHERE namn = '$namn' ";
echo $query;
Please make sure that, your variable not having values with qoutes ( ' ), May be the query is breaking somewhere.
echo the query and try to execute in phpmyadmin itself. Then you can find the issues.
36
answered Sep 19 '22 23:09
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