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ขอ code เกี่ยวกับการ add ข้อมูล โดยที่ห้ามมี record ซ้ำค่ะ php & mysql |
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Code (PHP)
<?php
$idstudent = 123;
$select = "select (ฟิวด์) from (ชื่อตาราง) where (ฟิวด์ที่เก็บรหัสนักศึกษา) = '$idstuent'";
$table = mysql_query($select)or die("Error : $select");
$row = mysql_fetch_array($table);
if($row == 0){
insert
}else
{
ข้อมูลซ้ำ
}
?>
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| Date :
2009-12-18 16:14:53 |
By :
bang_a |
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Code (phpMySQLCheckExistRecordAddForm.php)
<html>
<head>
<title>ThaiCreate.Com PHP & MySQL Tutorial</title>
</head>
<body>
<form action="phpMySQLCheckExistRecordAddSave.php" name="frmAdd" method="post">
<table width="600" border="1">
<tr>
<th width="91"> <div align="center">CustomerID </div></th>
<th width="160"> <div align="center">Name </div></th>
<th width="198"> <div align="center">Email </div></th>
<th width="97"> <div align="center">CountryCode </div></th>
<th width="70"> <div align="center">Budget </div></th>
<th width="70"> <div align="center">Used </div></th>
</tr>
<tr>
<td><div align="center"><input type="text" name="txtCustomerID" size="5"></div></td>
<td><input type="text" name="txtName" size="20"></td>
<td><input type="text" name="txtEmail" size="20"></td>
<td><div align="center"><input type="text" name="txtCountryCode" size="2"></div></td>
<td align="right"><input type="text" name="txtBudget" size="5"></td>
<td align="right"><input type="text" name="txtUsed" size="5"></td>
</tr>
</table>
<input type="submit" name="submit" value="submit">
</form>
</body>
</html>
Code (phpMySQLCheckExistRecordAddSave.php)
<html>
<head>
<title>ThaiCreate.Com PHP & MySQL Tutorial</title>
</head>
<body>
<?
$objConnect = mysql_connect("localhost","root","root") or die("Error Connect to Database");
$objDB = mysql_select_db("mydatabase");
$strSQL = "SELECT * FROM customer WHERE CustomerID = '".$_POST["txtCustomerID"]."' ";
$objQuery = mysql_query($strSQL);
$objResult = mysql_fetch_array($objQuery);
if($objResult)
{
echo "CustomerID already exist.";
}
else
{
$strSQL = "";
$strSQL = "INSERT INTO customer ";
$strSQL .="(CustomerID,Name,Email,CountryCode,Budget,Used) ";
$strSQL .="VALUES ";
$strSQL .="('".$_POST["txtCustomerID"]."','".$_POST["txtName"]."','".$_POST["txtEmail"]."' ";
$strSQL .=",'".$_POST["txtCountryCode"]."','".$_POST["txtBudget"]."','".$_POST["txtUsed"]."') ";
$objQuery = mysql_query($strSQL);
if($objQuery)
{
echo "Save Done.";
}
else
{
echo "Error Save [".$strSQL."]";
}
}
mysql_close($objConnect);
?>
</body>
</html>
PHP MySQL Check Already Exists Add/Insert Record
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| Date :
2009-12-19 11:31:59 |
By :
webmaster |
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