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อยากทำนับจำนวนนิสิตแต่ละกลุ่มค่ะ โดยแต่ละกลุ่มมีนิสิตได้ไม่เกิน 20 คน |
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ไม่มีใครตอบให้เลยเหรอค่ะ
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Date :
2012-02-19 13:58:16 |
By :
เคยู |
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อันนี้ตาม Style ผมเขียนนะ
Code (PHP)
<?
@session_start();
$Result=mysql_query("SELECT ( FROM tb_student WHERE group_Id='".$_POST['Group']."'") or die (mysql_error());
$Num_Rows=mysql_num_rows($Result);
if($Num_row < 20){
echo 'True';
}else{
echo 'False';
}
?>
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ประวัติการแก้ไข 2012-02-19 14:12:12
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Date :
2012-02-19 14:11:03 |
By :
Ex-[S]i[L]e[N]t |
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ขอแบบเต็มๆได้ไหมค่ะ คือตอนนี้ งง อ่ะค่ะ ขอบคุณมากนะค่ะ
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Date :
2012-02-19 17:10:31 |
By :
^^ |
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คล้าย ๆ จะ จำกัดจำนวนนิสิตในการลงเรียนแต่ละวิชา ทำตัว Cout เพิ่มขึ้นมาได้ไหมครับ ใช้นับจำนวนเอา หรือ count record ก็ได้ ถ้า record > 20 ก็ ไม่ให้รับเพิ่มครับ
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Date :
2012-02-19 18:44:20 |
By :
TopGun |
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หนูทำนับอย่างงี้อ่าค่ะ แต่มันยังไม่ได้ หนูต้องแก้ยังงัยค่ะ
<?
@session_start();
?>
<html>
<head>
<title>Edit Student</title>
</head>
<body>
<?
$objConnect = mysql_connect("localhost","root","51310084") or die("Error Connect to Database");
$objDB = mysql_select_db("project");
$strSQL1 = "SELECT * FROM student WHERE group_id = '".$_POST["Group"]."'";
$row = mysql_db_query($dbname,$strSQL1);//แก้ตรงนี้อะนะ
$nrow = $row['count']['0'];
echo "$nrow";
if($nrow < 3){
$strSQL = "UPDATE student SET statusa ='1',group_id='".$_POST["Group"]."',user_password='".$_POST["Password"]."', user_confirm ='".$_POST["ConPassword"]."' WHERE user_id = '".$_GET["StudentID"]."' ";
$objQuery = mysql_query($strSQL);
if($objQuery)
{
echo "Save Confirm Student Sucess.";
echo"<meta http-equiv='refresh' content='2;url=index.php'>";
}
}else{
echo"<script>alert('ไม่สามารถเข้ากลุ่มนี้ได้ กรุณาเลือกกลุ่มใหม่ นะจ๊ะ...');history.back();</script>";
}
mysql_close($objConnect);
?>
</body>
</html>
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Date :
2012-02-19 20:52:31 |
By :
^^ |
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ช่วยหน่อยนะค่ะ ขอร้องงงง
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Date :
2012-02-19 21:35:43 |
By :
^^ |
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ได้แล้วนะค่ะ ความช่วยเหลือจากพี่ๆ thaicreate
<html>
<head>
<title>Edit Student</title>
</head>
<body>
<?
$objConnect = mysql_connect("localhost","root","51310084") or die("Error Connect to Database");
$objDB = mysql_select_db("project");
$strSQL1 = "SELECT * FROM student WHERE group_id = '".$_POST["Group"]."'";
$result=mysql_query($strSQL1) or die(mysql_error());
$nrow=mysql_num_rows($result);
echo "<h2 style=\"color:red;\">$nrow</h2>";
if($nrow < 6){
$strSQL = "UPDATE student SET statusa ='1',group_id='".$_POST["Group"]."',user_password='".$_POST["Password"]."', user_confirm ='".$_POST["ConPassword"]."' WHERE user_id = '".$_GET["StudentID"]."' ";
$objQuery = mysql_query($strSQL) or die(mysql_error());
if(mysql_num_rows($objQuery)>0) //ถ้าคำสั่ง update มีผลให้แก้ไขข้อมูลตั้งแต่ 1 เรคคอร์ดเป็นต้นไป
{
echo "Save Confirm Student Sucess.";
echo"<meta http-equiv='refresh' content='2;url=index.php'>";
}else{
echo"<script>alert('ไม่สามารถอัพเดตข้อมูลใดๆได้... อาจเป็นผลจากเงื่อนไขที่ผิด\nหรือไม่มีข้อมูลของนักศึกษาเลขที่ {$_GET["StudentID"]} อยู่จริง!!! \nกรุณาติดต่อเจ้าหน้าที่ดูแลระบบ...');history.back();</script>";
}
}else{
echo"<script>alert('กลุ่มกิจกรรมนี้สมาชิกเต็มแล้วค่ะ.. กรุณาเลือกกลุ่มกิจกรรมอื่นๆน่ะค่ะ!');history.back();</script>";
}
mysql_close($objConnect);
?>
</body>
</html>
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Date :
2012-02-20 14:35:29 |
By :
rungjanjira |
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Load balance : Server 05
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