以下は、php から複数の行を mysql データベースに更新するコードです。すべて正常に動作しますが、突然「NO DATABASE SELECTED」と表示されます。そして、ページ上のデータを見ることができません。とにかく私のコードで何が間違っていますか??
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>CS SEM-1 SUB-1</title>
<script type="text/javascript" src="js/jquery-1.2.6.min.js"></script>
<script type="text/javascript" src="js/style-table.js"></script>
<SCRIPT LANGUAGE="JavaScript">
$(document).ready(function()
{
$('input[type="text"]').each(function()
{
if($(this).val() == 0) $(this).val('');
});
});
</script>
<SCRIPT LANGUAGE="JavaScript">
function t1()
{
{
$('input[type="text"]').each(function()
{
if($(this).val() == '') $(this).val('0');
});
}
}
</script>
<link href="css/css-table.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="cs1_s1" align="center">
<?php
include"connections\connect.php";
if ( isset( $_POST["submit1"] ) ) {
foreach( $_POST["id"] AS $id ) {
$may_tc_s1 = mysql_real_escape_string( $_POST["may_tc_s1"][$id] );
$may_ac_s1 = mysql_real_escape_string( $_POST["may_ac_s1"][$id] );
$jun_tc_s1 = mysql_real_escape_string( $_POST["jun_tc_s1"][$id] );
$jun_ac_s1 = mysql_real_escape_string( $_POST["jun_ac_s1"][$id] );
$jul_tc_s1 = mysql_real_escape_string( $_POST["jul_tc_s1"][$id] );
$jul_ac_s1 = mysql_real_escape_string( $_POST["jul_ac_s1"][$id] );
$aug_tc_s1 = mysql_real_escape_string( $_POST["aug_tc_s1"][$id] );
$aug_ac_s1 = mysql_real_escape_string( $_POST["aug_ac_s1"][$id] );
$sep_tc_s1 = mysql_real_escape_string( $_POST["sep_tc_s1"][$id] );
$sep_ac_s1 = mysql_real_escape_string( $_POST["sep_ac_s1"][$id] );
$oct_tc_s1 = mysql_real_escape_string( $_POST["oct_tc_s1"][$id] );
$oct_ac_s1 = mysql_real_escape_string( $_POST["oct_ac_s1"][$id] );
$nov_tc_s1 = mysql_real_escape_string( $_POST["nov_tc_s1"][$id] );
$nov_ac_s1 = mysql_real_escape_string( $_POST["nov_ac_s1"][$id] );
$s1_t1 = mysql_real_escape_string( $_POST["s1_t1"][$id] );
$s1_t2 = mysql_real_escape_string( $_POST["s1_t2"][$id] );
$s1_t3 = mysql_real_escape_string( $_POST["s1_t3"][$id] );
$update = " UPDATE `attendence` SET
`may_tc_s1` = '$may_tc_s1',
`may_ac_s1` = '$may_ac_s1',
`jun_tc_s1` = '$jun_tc_s1',
`jun_ac_s1` = '$jun_ac_s1',
`jul_tc_s1` = '$jul_tc_s1',
`jul_ac_s1` = '$jul_ac_s1',
`aug_tc_s1` = '$aug_tc_s1',
`aug_ac_s1` = '$aug_ac_s1',
`sep_tc_s1` = '$sep_tc_s1',
`sep_ac_s1` = '$sep_ac_s1',
`oct_tc_s1` = '$oct_tc_s1',
`oct_ac_s1` = '$oct_ac_s1',
`nov_tc_s1` = '$nov_tc_s1',
`nov_ac_s1` = '$nov_ac_s1',
`s1_t1` = '$s1_t1',
`s1_t2` = '$s1_t2',
`s1_t3` = '$s1_t3'
WHERE `idatten` =$id LIMIT 1 ; ";
mysql_query( $update ) or die( mysql_error() );
}
}
$sql = mysql_query( "SELECT * FROM attendence WHERE branch = 'cs' AND attendence.semester=1 ORDER BY attendence.rollno")or die(mysql_error());
//check if the starting row variable was passed in the URL or not
if (!isset($_GET['startrow']) or !is_numeric($_GET['startrow'])) {
//we give the value of the starting row to 0 because nothing was found in URL
$startrow = 0;
//otherwise we take the value from the URL
} else {
$startrow = (int)$_GET['startrow'];
}
//this part goes after the checking of the $_GET var
$sql = mysql_query("SELECT * FROM attendence WHERE branch = 'cs' AND attendence.semester=1 ORDER BY attendence.rollno LIMIT $startrow, 15")or
die(mysql_error());
if ( mysql_num_rows( $sql ) > 0 ) {
echo'<form id="form_s1" method="post">';
echo' <table border="0" align="center">';
echo' <tr>';
echo' <th><div align="center">ID</div></th>';
echo' <th><div align="center">Student Name</div></th>';
echo' <th><div align="center">Roll No</div></th>';
echo' <th colspan="2"><div align="center">May</div></th>';
echo' <th colspan="2"><div align="center">Jun</div></th>';
echo' <th colspan="2"><div align="center">Jul</div></th>';
echo' <th colspan="2"><div align="center">Aug</div></th>';
echo' <th colspan="2"><div align="center">Sep</div></th>';
echo' <th colspan="2"><div align="center">Oct</div></th>';
echo' <th colspan="2"><div align="center">Nov</div></th>';
echo' <th><div align="center">T1</div></th>';
echo' <th><div align="center">T2</div></th>';
echo' <th><div align="center">T3</div></th>';
echo' </tr>';
echo' <tr>';
echo' <th><div align="center"></div></th>';
echo' <th><div align="center"></div></th>';
echo' <th><div align="center"></div></th>';
echo' <th><div align="center">TC</div></th>';
echo' <th><div align="center">AC</div></th>';
echo' <th><div align="center">TC</div></th>';
echo' <th><div align="center">AC</div></th>';
echo' <th><div align="center">TC</div></th>';
echo' <th><div align="center">AC</div></th>';
echo' <th><div align="center">TC</div></th>';
echo' <th><div align="center">AC</div></th>';
echo' <th><div align="center">TC</div></th>';
echo' <th><div align="center">AC</div></th>';
echo' <th><div align="center">TC</div></th>';
echo' <th><div align="center">AC</div></th>';
echo' <th><div align="center">TC</div></th>';
echo' <th><div align="center">AC</div></th>';
echo' <th><div align="center"></div></th>';
echo' <th><div align="center"></div></th>';
echo' <th><div align="center"></div></th>';
echo' </tr>';
while ( $row = mysql_fetch_assoc( $sql ) ) {
echo' <tr>';
echo' <td>'.$row["idatten"] . '</td>';
echo' <td>'.$row["username"] . '</td>';
echo' <td>'.$row["rollno"] .'</td>';
echo' <td><input size="2" type="text" name="may_tc_s1[' . $row["idatten"] . ']" value="' . $row["may_tc_s1"] . '"></td>';
echo' <td><input size="2" type="text" name="may_ac_s1[' . $row["idatten"] . ']" value="' . $row["may_ac_s1"] . '"></td>';
echo' <td><input size="2" type="text" name="jun_tc_s1[' . $row["idatten"] . ']" value="' . $row["jun_tc_s1"] . '"></td>';
echo' <td><input size="2" type="text" name="jun_ac_s1[' . $row["idatten"] . ']" value="' . $row["jun_ac_s1"] . '"></td>';
echo' <td><input size="2" type="text" name="jul_tc_s1[' . $row["idatten"] . ']" value="' . $row["jul_tc_s1"] . '"></td>';
echo' <td><input size="2" type="text" name="jul_ac_s1[' . $row["idatten"] . ']" value="' . $row["jul_ac_s1"] . '"></td>';
echo' <td><input size="2" type="text" name="aug_tc_s1[' . $row["idatten"] . ']" value="' . $row["aug_tc_s1"] . '"></td>';
echo' <td><input size="2" type="text" name="aug_ac_s1[' . $row["idatten"] . ']" value="' . $row["aug_ac_s1"] . '"></td>';
echo' <td><input size="2" type="text" name="sep_tc_s1[' . $row["idatten"] . ']" value="' . $row["sep_tc_s1"] . '"></td>';
echo' <td><input size="2" type="text" name="sep_ac_s1[' . $row["idatten"] . ']" value="' . $row["sep_ac_s1"] . '"></td>';
echo' <td><input size="2" type="text" name="oct_tc_s1[' . $row["idatten"] . ']" value="' . $row["oct_tc_s1"] . '"></td>';
echo' <td><input size="2" type="text" name="oct_ac_s1[' . $row["idatten"] . ']" value="' . $row["oct_ac_s1"] . '"></td>';
echo' <td><input size="2" type="text" name="nov_tc_s1[' . $row["idatten"] . ']" value="' . $row["nov_tc_s1"] . '"></td>';
echo' <td><input size="2" type="text" name="nov_ac_s1[' . $row["idatten"] . ']" value="' . $row["nov_ac_s1"] . '"></td>';
echo' <td><input size="4" type="text" name="s1_t1[' . $row["idatten"] . ']" value="' . $row["s1_t1"] . '"></td>';
echo' <td><input size="4" type="text" name="s1_t2[' . $row["idatten"] . ']" value="' . $row["s1_t2"] . '"></td>';
echo' <td><input size="4" type="text" name="s1_t3[' . $row["idatten"] . ']" value="' . $row["s1_t3"] . '"></td>';
echo' <input type="hidden" name="id[]" value="' . $row["idatten"] . '">';
echo' </tr>';
echo' <tr>';
}}
$prev = $startrow - 15;
//only print a "Previous" link if a "Next" was clicked
if ($prev >= 0)
echo'<td><a href="'.$_SERVER['PHP_SELF'].'?startrow='.$prev.'"><img src="images/pre.gif" width="84" height="41" alt="pre" /></a></td>';
echo'<td colspan="20"><div align="center"> <input type="submit" onblur="t1()" name="submit1" value="Update Record"></div></td>';
//now this is the link..
$count = mysql_query("SELECT COUNT(*) AS total FROM attendence WHERE branch = 'cs' AND attendence.semester=1 ");
$count = mysql_fetch_object($count);
$count = $count->total;
if( $count > $startrow+15)
echo'<td><a href="'.$_SERVER['PHP_SELF'].'?startrow='.($startrow+15).'"><img src="images/next.gif" width="77" height="37" alt="next" /></a></td>';
echo' </tr>';
echo' </table>';
echo '</form>';
?>
<!-- End of cs1_s1 ---></div>
</body>
</html>
<!-- End of cs1_s1 ---></div>
</body>
</html>