Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource

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Re: Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource

#41

Mar 10th, 2008

I am having the same problem as the original guy for my database code....can someone help please? here is the code.

 Help with Code Tags 
 php Syntax (Toggle Plain Text) 
<body>
<?php
 
	include("../misc.inc");
	mysql_connect($host,$user,$pass);
	mysql_select_db($database);
	if($HTTP_GET_VARS['id'])
	{
		$query = "SELECT * FROM guestlist WHERE eventID = '".$HTTP_GET_VARS['id']."'";
		$result = mysql_query($query);
		$nrows = mysql_num_rows($result);
		if($nrows > 0){
		$i = 0;
		$myGuests = array();
		while($row = mysql_fetch_array($result))
		{
			extract($row);
			$totalGuests += $guests;
			$myGuests[$i] = "<tr><td>".($i+1)."</td><td>$guestName</td><td>$guests</td><td>$email</td></tr>";
			$i++;
		}
		echo "<p>$nrows on guestlist, ".($nrows+$totalGuests)." expected for event.</p>";
		echo "<table width =\"600\" border=\"1\">";
		echo "<tr><th>&nbsp;</th><th>Name</th><th width=\"50\">Guests</th><th>Email</th></tr>";
		for($i=0;$i<sizeof($myGuests);$i++)
		{
			echo $myGuests[$i];
		}
		echo "</table>";
		}
		else
		{
		echo "<p>No guests.</p>";
		}
	}
	else
	{
		$currentDate = date("Y-m-d",time());
		$query = "SELECT * FROM events_entries WHERE eventDate >= '$currentDate' ORDER by eventDate";
		$result = mysql_query($query);
		$nrows = mysql_num_rows($result);
		while($row = mysql_fetch_array($result))
		{
			extract($row);
			echo "<p>-<a href=\"getguests.php?id=$id\">$eventDate: $eventName @ $eventLocation</a></p>";
		}
	}
 
?>
<p>-<a href="index.php?<?php echo session_id(); ?>">Back To Main</a><br />
-<a href="logout.php?<?php echo session_id(); ?>">Logout</a></p>
</body>
<body>
<?php

	include("../misc.inc");
	mysql_connect($host,$user,$pass);
	mysql_select_db($database);
	if($HTTP_GET_VARS['id'])
	{
		$query = "SELECT * FROM guestlist WHERE eventID = '".$HTTP_GET_VARS['id']."'";
		$result = mysql_query($query);
		$nrows = mysql_num_rows($result);
		if($nrows > 0){
		$i = 0;
		$myGuests = array();
		while($row = mysql_fetch_array($result))
		{
			extract($row);
			$totalGuests += $guests;
			$myGuests[$i] = "<tr><td>".($i+1)."</td><td>$guestName</td><td>$guests</td><td>$email</td></tr>";
			$i++;
		}
		echo "<p>$nrows on guestlist, ".($nrows+$totalGuests)." expected for event.</p>";
		echo "<table width =\"600\" border=\"1\">";
		echo "<tr><th>&nbsp;</th><th>Name</th><th width=\"50\">Guests</th><th>Email</th></tr>";
		for($i=0;$i<sizeof($myGuests);$i++)
		{
			echo $myGuests[$i];
		}
		echo "</table>";
		}
		else
		{
		echo "<p>No guests.</p>";
		}
	}
	else
	{
		$currentDate = date("Y-m-d",time());
		$query = "SELECT * FROM events_entries WHERE eventDate >= '$currentDate' ORDER by eventDate";
		$result = mysql_query($query);
		$nrows = mysql_num_rows($result);
		while($row = mysql_fetch_array($result))
		{
			extract($row);
			echo "<p>-<a href=\"getguests.php?id=$id\">$eventDate: $eventName @ $eventLocation</a></p>";
		}
	}

?>
<p>-<a href="index.php?<?php echo session_id(); ?>">Back To Main</a><br />
-<a href="logout.php?<?php echo session_id(); ?>">Logout</a></p>
</body>

I am getting these 2 error messages:
Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource

Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource
Please advise....thanks a lot guys!!

Last edited by peter_budo : Apr 3rd, 2008 at 10:12 am. Reason: Keep It Organized - please use [code] tags

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Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in

#42

Apr 3rd, 2008

i got this error plz tell me what is main problem in code

Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in C:\wamp\www\login\checklogin.php on line 34
Wrong Username or Password

 Help with Code Tags 
 php Syntax (Toggle Plain Text) 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
 
<body>
<?php
$host="localhost"; // Host name 
$username="root"; // Mysql username 
$password=""; // Mysql password 
$db_name="test"; // Database name 
$tbl_name="members"; // Table name 
 
// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");
 
// username and password sent from form 
$myusername=$_POST['myusername']; 
$mypassword=$_POST['mypassword']; 
 
// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);
 
$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);
 
// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row
 
if($count==1){
// Register $myusername, $mypassword and redirect to file "login_success.php"
session_register("myusername");
session_register("mypassword"); 
header("location:login_success.php");
}
else {
echo "Wrong Username or Password";
}
?>
 
 
</body>
</html>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>

<body>
<?php
$host="localhost"; // Host name 
$username="root"; // Mysql username 
$password=""; // Mysql password 
$db_name="test"; // Database name 
$tbl_name="members"; // Table name 

// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

// username and password sent from form 
$myusername=$_POST['myusername']; 
$mypassword=$_POST['mypassword']; 

// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);

$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);

// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row

if($count==1){
// Register $myusername, $mypassword and redirect to file "login_success.php"
session_register("myusername");
session_register("mypassword"); 
header("location:login_success.php");
}
else {
echo "Wrong Username or Password";
}
?>


</body>
</html>

Last edited by peter_budo : Apr 3rd, 2008 at 10:13 am. Reason: Keep It Organized - please use [code] tags

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Re: Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource

#43

Apr 3rd, 2008

There is something wrong with your query. Print out your query (print $sql ) and tell us what does it print.

Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.

*PM asking for help will be ignored*

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michael.mckee michael.mckee is offline

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Re: Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource

#44

Jun 10th, 2008

Hello, I'm new to html not to even mention mysql. I've gotten roped into keeping the company website updated and have run into an error:

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Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /home/thesoun1/public_html/used.php on line 206

Warning: mysql_free_result(): supplied argument is not a valid MySQL result resource in /home/thesoun1/public_html/used.php on line 325

Here is the code for the database query:

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(Toggle Plain Text)

<td valign="top" colspan="3"><img src="/images/clearpixel.gif" width="15">
<center><table align="center" border="2" cellpadding="2" cellSpacing="2" bgcolor="#63c6de">
<tr>

<?php

$user = 'thesoun1_dbuser';
$pass = 'dbuserpw';
$host = 'localhost';
$db_name = 'thesoun1_soundwave';


$dbc = @mysql_connect($host, $user, $pass) or die ('Could not connect to database ' . mysql_error());

@mysql_select_db ($db_name) or die ('Could not select the database ' . mysql_error());

//echo 'Database connection succeded and table ' . $db_name . ' was selected OK.';

$query = "select * from inventory where condition = 'used' order by brand asc";

$result = @mysql_query($query);
$num_rows = mysql_num_rows($result);

if($result)
{
// echo '<td>';
echo "<tr>
<td align=\"center\"><font color=\"BLUE\">Brand</td>
<td align=\"center\"><font color=\"BLUE\">Model</td>
<td align=\"center\"><font color=\"BLUE\">Serial</td>
<td align=\"center\"><font color=\"BLUE\">Category</td>
<td align=\"center\"><font color=\"BLUE\">Condition</td>
<td align=\"center\"><font color=\"BLUE\">MSRP</td>
<td align=\"center\"><font color=\"BLUE\">Price</td>
<td align=\"center\"><font color=\"BLUE\">Comments</td>
<td align=\"center\"><font color=\"BLUE\">Website</a></td>
<td align=\"center\"><font color=\"BLUE\">Images</a></td>
<td align=\"center\"><font color=\"BLUE\">Sales</a></td>
<td align=\"center\"><font color=\"BLUE\">Buy</a></td>
</tr>\n";


while($row = mysql_fetch_array($result, MYSQL_NUM))
{
echo "<tr>
<td align=\"left\" bgcolor=\"LIGHTYELLOW\">$row[1]</td>
<td align=\"left\" bgcolor=\"LIGHTYELLOW\">$row[2]</td>
<td align=\"left\" bgcolor=\"LIGHTYELLOW\">$row[3]</td>
<td align=\"left\" bgcolor=\"LIGHTYELLOW\">$row[4]</td>
<td align=\"left\" bgcolor=\"LIGHTYELLOW\">$row[5]</td>";
if($row[6] == 0)
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><p>N/A</p></td>";
}
else
{
$row[6] = number_format($row[6],2);
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\">$row[6]</td>";
}

if($row[7] == 0)
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><p>call</p></td>";
}
else
{
$row[7] = number_format($row[7],2);
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\">$row[7]</td>";
}

echo "<td align=\"left\" bgcolor=\"LIGHTYELLOW\">$row[8]</td>";

if($row[9] != "")
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><a href=\"javascript:website_window('$row[9]',800,600);\" onmouseover=\"if(Rollover) document['web$row[0]'].src=WEBMover.src\" onmouseout=\"if(Rollover) document['web$row[0]'].src=WEBMout.src\"><img src=\"/images/website.gif\" border=\"0\" name=\"web$row[0]\"></a></td>";
}
else
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><p>N/A</p></td>";
}

if($row[10] != "")
{
$linknumber=1;
$loopcount=0;
$gallery = explode(' ',$row[10]);
// $arr_count = sizeof($gallery);
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\">";
foreach($gallery as $imgname)
{
echo "<a href=\"javascript:create_window('$imgname',5,5);\" class=linkcolor>$linknumber</a>&nbsp;";
++$linknumber;
++$loopcount;
if($loopcount == 3)
{
echo "<br>";
$loopcount=0;
}
}
echo "</td>";
// echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><a href=\"/images/$row[10]\" class=linkcolor>Image</a></td>";
}
else
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><a href=\"javascript:new_window('/no_images.html',500,400);\" onmouseover=\"if(Rollover) document['noimage$row[0]'].src=NO_IMAGESMover.src\" onmouseout=\"if(Rollover) document['noimage$row[0]'].src=NO_IMAGESMout.src\"><img src=\"/images/noimages.gif\" border=\"0\" name=\"noimage$row[0]\"></a></td>";
// echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><p>N/A</p></td>";
}

if($row[12] != 0)
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><a href=\"javascript:new_window('/sale_restrictions.html',500,400);\" onmouseover=\"if(Rollover) document['sales$row[0]'].src=R_SALESMover.src\" onmouseout=\"if(Rollover) document['sales$row[0]'].src=R_SALESMout.src\"><img src=\"/images/rs.gif\" border=\"0\" name=\"sales$row[0]\"></a></td>";
}
else
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"></td>";
// echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><a href=\"javascript:new_window('/nosale_restrictions.html',500,400);\" onmouseover=\"if(Rollover) document['sales$row[0]'].src=NS_SALESMover.src\" onmouseout=\"if(Rollover) document['sales$row[0]'].src=NS_SALESMout.src\"><img src=\"/images/ns.gif\" border=\"0\" name=\"sales$row[0]\"></a></td>";
}

if($row[7] != 0)
{
if($row[13] == 1)
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><a href=\"/cart.php?pid=$row[0]&do=Add\" onmouseover=\"if(Rollover) document['cart$row[0]'].src=CARTMover.src\" onmouseout=\"if(Rollover) document['cart$row[0]'].src=CARTMout.src\"><img src=\"/images/addtocartgreen.gif\" border=\"0\" name=\"cart$row[0]\"></a></td>";
}
else
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"></td>";
// echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><a href=\"javascript:new_window('/sale_restrictions.html',500,400);\" onmouseover=\"if(Rollover) document['cart$row[0]'].src=RS_SALESMover.src\" onmouseout=\"if(Rollover) document['cart$row[0]'].src=RS_SALESMout.src\"><img src=\"/images/rsales.gif\" border=\"0\" name=\"cart$row[0]\"></a></td>";
}
}
else
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"></td>";
}


echo "</tr>\n";
}
}
// echo '</td>';
mysql_free_result($result);


//echo '<br>Got ' . $num_rows . ' records from database.';
mysql_close($dbc);

?>

<td valign="top" colspan="3"><img src="/images/clearpixel.gif" width="15">
<center><table align="center" border="2" cellpadding="2" cellSpacing="2" bgcolor="#63c6de">
<tr>

<?php

$user = 'thesoun1_dbuser';
$pass = 'dbuserpw';
$host = 'localhost';
$db_name = 'thesoun1_soundwave';


$dbc = @mysql_connect($host, $user, $pass) or die ('Could not connect to database ' . mysql_error());

@mysql_select_db ($db_name) or die ('Could not select the database ' . mysql_error());

//echo 'Database connection succeded and table ' . $db_name . ' was selected OK.';

$query = "select * from inventory where condition = 'used' order by brand asc";

$result = @mysql_query($query);
$num_rows = mysql_num_rows($result);

if($result)
{
// echo '<td>';
echo "<tr>
<td align=\"center\"><font color=\"BLUE\">Brand</td>
<td align=\"center\"><font color=\"BLUE\">Model</td>
<td align=\"center\"><font color=\"BLUE\">Serial</td>
<td align=\"center\"><font color=\"BLUE\">Category</td>
<td align=\"center\"><font color=\"BLUE\">Condition</td>
<td align=\"center\"><font color=\"BLUE\">MSRP</td>
<td align=\"center\"><font color=\"BLUE\">Price</td>
<td align=\"center\"><font color=\"BLUE\">Comments</td>
<td align=\"center\"><font color=\"BLUE\">Website</a></td>
<td align=\"center\"><font color=\"BLUE\">Images</a></td>
<td align=\"center\"><font color=\"BLUE\">Sales</a></td>
<td align=\"center\"><font color=\"BLUE\">Buy</a></td>
</tr>\n";


while($row = mysql_fetch_array($result, MYSQL_NUM))
{
echo "<tr>
<td align=\"left\" bgcolor=\"LIGHTYELLOW\">$row[1]</td>
<td align=\"left\" bgcolor=\"LIGHTYELLOW\">$row[2]</td>
<td align=\"left\" bgcolor=\"LIGHTYELLOW\">$row[3]</td>
<td align=\"left\" bgcolor=\"LIGHTYELLOW\">$row[4]</td>
<td align=\"left\" bgcolor=\"LIGHTYELLOW\">$row[5]</td>";
if($row[6] == 0)
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><p>N/A</p></td>";
}
else
{
$row[6] = number_format($row[6],2);
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\">$row[6]</td>";
}

if($row[7] == 0)
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><p>call</p></td>";
}
else
{
$row[7] = number_format($row[7],2);
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\">$row[7]</td>";
}

echo "<td align=\"left\" bgcolor=\"LIGHTYELLOW\">$row[8]</td>";

if($row[9] != "")
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><a href=\"javascript<b></b>:website_window('$row[9]',800,600);\" onmouseover=\"if(Rollover) document['web$row[0]'].src=WEBMover.src\" onmouseout=\"if(Rollover) document['web$row[0]'].src=WEBMout.src\"><img src=\"/images/website.gif\" border=\"0\" name=\"web$row[0]\"></a></td>";
}
else
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><p>N/A</p></td>";
}

if($row[10] != "")
{
$linknumber=1;
$loopcount=0;
$gallery = explode(' ',$row[10]);
// $arr_count = sizeof($gallery);
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\">";
foreach($gallery as $imgname)
{
echo "<a href=\"javascript<b></b>:create_window('$imgname',5,5);\" class=linkcolor>$linknumber</a>&nbsp;";
++$linknumber;
++$loopcount;
if($loopcount == 3)
{
echo "<br>";
$loopcount=0;
}
}
echo "</td>";
// echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><a href=\"/images/$row[10]\" class=linkcolor>Image</a></td>";
}
else
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><a href=\"javascript<b></b>:new_window('/no_images.html',500,400);\" onmouseover=\"if(Rollover) document['noimage$row[0]'].src=NO_IMAGESMover.src\" onmouseout=\"if(Rollover) document['noimage$row[0]'].src=NO_IMAGESMout.src\"><img src=\"/images/noimages.gif\" border=\"0\" name=\"noimage$row[0]\"></a></td>";
// echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><p>N/A</p></td>";
}

if($row[12] != 0)
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><a href=\"javascript<b></b>:new_window('/sale_restrictions.html',500,400);\" onmouseover=\"if(Rollover) document['sales$row[0]'].src=R_SALESMover.src\" onmouseout=\"if(Rollover) document['sales$row[0]'].src=R_SALESMout.src\"><img src=\"/images/rs.gif\" border=\"0\" name=\"sales$row[0]\"></a></td>";
}
else
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"></td>";
// echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><a href=\"javascript<b></b>:new_window('/nosale_restrictions.html',500,400);\" onmouseover=\"if(Rollover) document['sales$row[0]'].src=NS_SALESMover.src\" onmouseout=\"if(Rollover) document['sales$row[0]'].src=NS_SALESMout.src\"><img src=\"/images/ns.gif\" border=\"0\" name=\"sales$row[0]\"></a></td>";
}

if($row[7] != 0)
{
if($row[13] == 1)
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><a href=\"/cart.php?pid=$row[0]&do=Add\" onmouseover=\"if(Rollover) document['cart$row[0]'].src=CARTMover.src\" onmouseout=\"if(Rollover) document['cart$row[0]'].src=CARTMout.src\"><img src=\"/images/addtocartgreen.gif\" border=\"0\" name=\"cart$row[0]\"></a></td>";
}
else
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"></td>";
// echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"><a href=\"javascript<b></b>:new_window('/sale_restrictions.html',500,400);\" onmouseover=\"if(Rollover) document['cart$row[0]'].src=RS_SALESMover.src\" onmouseout=\"if(Rollover) document['cart$row[0]'].src=RS_SALESMout.src\"><img src=\"/images/rsales.gif\" border=\"0\" name=\"cart$row[0]\"></a></td>";
}
}
else
{
echo "<td align=\"center\" bgcolor=\"LIGHTYELLOW\"></td>";
}


echo "</tr>\n";
}
}
// echo '</td>';
mysql_free_result($result);


//echo '<br>Got ' . $num_rows . ' records from database.';
mysql_close($dbc);

?>

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Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource

Re: Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource

Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in

Re: Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource

Re: Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource