Php mysql connectivity
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This document discusses connecting to a MySQL database from PHP using mysql_connect() and mysqli. It provides code samples to: 1) Establish a connection to a MySQL database with mysql_connect(), passing in the hostname, username, password, and optionally the database name. 2) Close the database connection with mysql_close() after query execution. 3) Connect to a MySQL database and perform insert and select queries using mysqli prepared statements from a registration form.
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![else
{
echo 'data not saved '.$connect->error;
}
}
//display data
if(isset($disp))
{
$query="select * from users";
$result=$connect->query($query);
echo "<table border=1>";
echo "<tr><th>Name</th><th>Email</th><th>Mobile<
/th><th>Address</th></tr>";
while($row=$result->fetch_array())
{
echo "<tr>";
echo "<td>".$row['name']."</td>";
echo "<td>".$row['email']."</td>";
echo "<td>".$row['mobile']."</td>";
echo "<td>".$row['address']."</td>";
echo "</tr>";
}
echo "</table>";
}
?>
HTML Form
<style>](https://image.slidesharecdn.com/phpmysqlconnectivity-200413024349/85/Php-mysql-connectivity-3-320.jpg)
![input,textarea{width:200px}
input[type=submit]{width:100px}
</style>
<form method="post">
<table width="218" border="0">
<tr>
<td width="208"><input type="text" name="n" placeholder="Enter your
name"/></td>
</tr>
<tr>
<td><input type="text" name="e" placeholder="Enter your email"/></td>
</tr>
<tr>
<td><input type="text" name="m" placeholder="Enter your mobile"/></td>
</tr>
<tr>
<td><textarea name="add" placeholder="Enter your address"></textarea></td>
</tr>
<tr>
<td>
<input type="submit" name="save" value="Save Data"/>
<input type="submit" name="disp" value="Display Data"/>
</td>
</tr>
</table>
</form>](https://image.slidesharecdn.com/phpmysqlconnectivity-200413024349/85/Php-mysql-connectivity-4-320.jpg)
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<?php
$con=mysqli_connect("localhost","PHPClass","hello","MIS352");
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