How to use PHP & MySQL Check Exists Rows Data

Author: admin | Posted: 21-03-2010 | Category: PHP & MySQL

How to use PHP & MySQL Check Exists Rows Data Learn PHP how to using PHP check a exists data on mysql table.

ShotDev Focus:
- PHP & MySQL check exists data.

Example

php_mysql_exists1.php


<html>
<head>
<title>ShotDev.Com Tutorial</title>
</head>
<body>
<form action="php_mysql_exists2.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>

php_mysql_exists2.php


<html>
<head>
<title>ShotDev.Com Tutorial</title>
</head>
<body>
<?
$objConnect = mysql_connect("localhost","root","root") or die(mysql_error());
$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 exists.";
}
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>

Create a php file and save to path root-path/myphp/

Run
http://localhost/myphp/php_mysql_exists1.php

Screenshot