How to write a PHP script to delete data from an existing MySQL table?

We can use SQL DELETE command with or without WHERE clause in PHP function mysql_query(). This function will execute a SQL command in a manner similar to that executed at the mysql> prompt. To illustrate this, we have the following example -

Example

In this example, we are writing a PHP script to delete a record from a MySQL table named 'tutorial_tbl' whose tutorial_id is 3.

<?php
   $dbhost = 'localhost:3036';
   $dbuser = 'root';
   $dbpass = 'rootpassword';
   $conn = mysql_connect($dbhost, $dbuser, $dbpass);

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

   $sql = 'DELETE FROM tutorials_tbl WHERE tutorial_id=3';

   mysql_select_db('TUTORIALS');
   $retval = mysql_query( $sql, $conn );

   if(! $retval ) {
      die('Could not delete data: ' . mysql_error());
   }
   echo "Deleted data successfully</p><p>";
   mysql_close($conn);
?>

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