This example illustrates how to create the variable in php for sql operation.

Php Sql Variable

This example illustrates how to create the variable in php for sql operation.

In this example we create a variable $con for mysql connection and $update for query. The sign ($) is used to create the variable in php.

 

Table: emp_table before insertion

 

Table: emp_table after insertion

 

Source Code of sql_variable.php

<?php   // variable con created..   $con = mysql_connect("localhost","root","root");   if (!$con){     die('Could not connect: ' . mysql_error());   }   mysql_select_db("test", $con);   // variable update created..   $update = "UPDATE emp_table SET emp_name = 'sandeep' WHERE emp_id = 1";   mysql_query($update, $con);   echo "Column <b>emp_name</b> updated successfully<br><br>";   mysql_close($con); ?>

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Output:

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