Mysql PHP won't work -

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i have code ill show information database won't work
connecta.php code

<?php                 $dbhost = '*';                 $dbuser = '*';                 $dbpass = 'nq4*jh5!';                 $conn = mysql_connect($dbhost, $dbuser, $dbpass);                 if(! $conn )                 {                   die('could not connect: ' . mysql_error());                 }                 mysql_select_db('*');                 mysql_query("set names utf8");  ?>

and source of page have problem 

<?php $id = $_request['id'];  require("../connecta.php"); $sql = 'select mirror_link         fallaga_tbl id=\'$id\' '; $retval = mysql_query( $sql, $conn ); if(! $retval ) {   die('could not data: ' . mysql_error()); }   ?>     <!doctype html>     <html>     <head>     <title>zone-p || fallaga mirror</title>     <link rel="stylesheet" type="text/css" href="../home.css">     <link rel="shortcut icon" href="http://www.fallega.tn/icon.gif" height="350" width="350">     </head>     <body>     <div align="center">         <div class="header">             <div align="center"><a class="titlee" >fallaga mirror</a><br><img  width="500px" src="http://tunisiaface.net/wp-content/uploads/2013/04/l.png"></div>             <div class="menu">                 <ul>                 <li><a href="../index.php">home</a></li>                 <li><a href="../news.php">news</a></li>                 <li><a href="../notify/notify.php">notify</a></li>                 <li><a href="../notify/massnotify.php">mass notify</a></li>                 <li><a href="../onhold.php">onhold</a></li>                 <li><a href="../archive.php">archive</a></li>                 <li><a href="../about.php">about</a></li>                 <li><a href="../contact.php">contact</a></li>                 </ul>             </div>         </div>         <div class="main">         <iframe src="          <?php while($row = mysql_fetch_array($retval, mysql_assoc)) { echo "{$row['mirror_link']}"; } mysql_close($conn) ; ?>           " style="width:770px;height:500px;">           <p>your browser not support iframes.</p>         </iframe>         </div>           <div class="bottom">         zone-p - fallaga mirror service &copy; 2014 - <a style="color:white;" href="https://www.facebook.com/mahdi.com.tn ">by màh di</a>         </div>     </div>     </body>     </html>

when open page browser see html , no error iframe nothing came in src="" still empty can show me what's wrong ?

it seems should use " instead of ' on line 3, otherwise \'$id\' in sql known string value '$id', not valid id value mysql.

your code on line 3:

 $sql = 'select mirror_link         fallaga_tbl id=\'$id\' ';

it should be:

$sql = "select mirror_link         fallaga_tbl id='{$id}'";

besides can change code line 1 to

$id = mysql_escape_string( $_request['id'] );

to prevent sql injection.


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