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PHP SQL Query
Most of the applications need to interact with database to store, update and fetch the data. This interaction is made executing Sql queries.

PHP SQL Query

This example illustrates how to create and execute the sql query in php application.

Most of the applications need to interact with database to store, update and fetch the data. This interaction is made executing Sql queries. To understand how to use sql queries in php, we have created sql_query.php page. First, connection from database is created using mysql_connect("hostName", "userName", "Password"), selected the database by mysql_select_db("databaseName", connectionObject). Now, the query "SELECT name, designation FROM employee" is executed using mysql_query() method to get name and designation of all employees.

Source Code of sql_query.php


<?php

  $con = mysql_connect("localhost","root","root");

  if (!$con) {

    die('Could not connect: ' . mysql_error());

  }



  mysql_select_db("test", $con);

  $result = mysql_query("SELECT name, designation FROM employee");

  

  while ($row = mysql_fetch_array($result)) {

    echo $row['name']." ||| ";

    echo $row['designation'];    

    echo "<br>";

  }



  if (!$result) {

    $message  = 'Invalid query: ' . mysql_error() . "\n";

    $message .= 'Whole query: ' . $query;

    die($message);

  }  



  mysql_free_result($result);

?>

Download Source Code

Output:

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Related Tags: sql mysql c string oop com function fun io sed char padding length oo character case cas if ie unc

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