simple database operations

gistfile1.php

<?php
$con = mysql_connect("localhost","peter","abc123");

if (!$con) {
  die('Could not connect: ' . mysql_error());
}

mysql_select_db("my_db", $con) or die(mysql_error());

// insert query
mysql_query("INSERT INTO Persons (FirstName, LastName, Age) 
VALUES ('Peter', 'Griffin',35)") or die(mysql_error());

// update query
mysql_query("UPDATE Persons SET Age=36
WHERE FirstName='Peter' AND LastName='Griffin'") or die(mysql_error());

// delete query
mysql_query("DELETE FROM Persons WHERE LastName='Griffin'") or die(mysql_error());

// select query
$result = mysql_query("SELECT * FROM Persons") or die(mysql_error());

// loop through result
while($row = mysql_fetch_array($result)) {
  echo $row['FirstName'] . " " . $row['LastName'];
  echo "<br />";
}

mysql_close($con);