Insert , Delete, Update and display Using PHP

We all know PHP is a server side scripting language which is basically used to make dynamic web pages or websites. It support many databases but the best compatibility of PHP is with mySql.

<?php
mysql_connect("localhost","root","");
mysql_select_db("connect");
?>
<html>
<style>
Body
{
Background-color:cyan;
}
b
{
color:#F00;
}
</style>
<form method="post" name="frm">
<table width="355" border="1" cellspacing="3" cellpadding="3" align=”center”>
<tr>
<td width="161">Name</td>
<td width="167">
<input type="text" name="user"></td>
</tr>
<tr>
<td>Password</td>
<td><input type="password" name="pass"></td>
</tr>
<tr>
<td>email</td>
<td><input type="email" name="email"></td>
</tr>
<tr>
<td colspan="2" align="center"><input type="submit" name="ins" value="insert">
<input type="submit" name="del" value="delete">
<input type="submit" name="updt" value="update">
<input type="submit" name="dsp" value="display all">
</td>
</tr>
</table>
<?php
$user=$_POST['user'];
$pass=$_POST['pass'];
$email=$_POST['email'];
if($_POST['ins'])
{
$strQuery="insert into info(user,password,email) values('$user','$pass','$email')";
$strResult = mysql_query($strQuery) or die("sanjay here is some error".mysql_error());
echo "thnks for register <b>$user</b>";
}
if($_POST['del'])
{
$strQuery="delete from info where email='$email'";
mysql_query($strQuery) or die("sanjay here is some error".mysql_error());
echo "successfully deleted";
}
if($_POST['updt'])
{
$strQuery="update info set user='$user' where email='$email'";
mysql_query($strQuery);
echo "update successfully";
}
if($_POST['dsp'])
{
$strQuery="select * from info";
$strResult=mysql_query($strQuery);
$res=mysql_fetch_array($strResult);
print_r ($res);
}
?>
</form>
</html>