Need help... how to add md5 to password field in php? - php

Question

i looking some help and nice attention here..
i bought some php script many years ago and now no suport anymore... i just want to add md5 to password field..
here my form:
<?php
$SQL = "SELECT * from USERS WHERE USERNAME = '$_SESSION[username]'"; $result = #mysql_query( $SQL ); $row = #mysql_fetch_array( $result );
include 'menu.php';
?>
<FORM METHOD="post" ACTION="?page=query_client">
<INPUT TYPE="hidden" NAME="controller" VALUE="USERS~update~account_details&up=1~<?php echo $row[ID]; ?>">
<TABLE CLASS="basictable">
<TR>
<TD CLASS="tdmenu" WIDTH="40%">Username</TD>
<TD CLASS="tdmenu" WIDTH="60%">
<b><?php echo $row[USERNAME]; ?></b>
</TD>
</TR>
<TR>
<TD CLASS="tdmenu" WIDTH="40%">Password *</TD>
<TD CLASS="tdmenu" WIDTH="60%">
<INPUT TYPE="PASSWORD" NAME="PASSWORD" SIZE="40" VALUE="<?php echo $row[PASSWORD]; ?>">
</TD>
</TR>
<TR>
<TD CLASS="tdmenu" WIDTH="40%">Email Address *</TD>
<TD CLASS="tdmenu" WIDTH="60%">
<INPUT TYPE="text" NAME="EMAIL" SIZE="40" VALUE="<?php echo $row[EMAIL]; ?>">
</TD>
</TR>
<TR>
<TD CLASS="tdmenu" WIDTH="40%">Full Name *</TD>
<TD CLASS="tdmenu" WIDTH="60%">
<INPUT TYPE="text" NAME="FULLNAME" SIZE="40" VALUE="<?php echo $row[FULLNAME]; ?>">
</TD>
<TR>
<TD CLASS="tdmenu" WIDTH="40%">Address *</TD>
<TD CLASS="tdmenu" WIDTH="60%">
<INPUT TYPE="text" NAME="ADDRESS1" SIZE="40" VALUE="<?php echo $row[ADDRESS1]; ?>">
</TD>
</TR>
<BR>
<TABLE CLASS="basictable">
<TR>
<TD CLASS="tdhead2" >
<DIV ALIGN="CENTER"><B>
<INPUT TYPE="submit" NAME="Submit" VALUE="Submit">
</B></DIV>
</TD>
</TR>
</TABLE>
</FORM>
and the
it self as query_client.php inside look like:
<?PHP
#session_start();
$controller = $_POST['controller'];
$pieces = explode("~", $controller);
$table = $pieces[0];
$qt = $pieces[1];
$return = $pieces[2];
$id = $pieces[3];
$hack = $pieces[4];
if ($qt == insert) $qt = 'INSERT INTO';
if ($qt == update) { $qt = 'UPDATE'; $end = "WHERE ID = '$id'"; }
$pre = array_keys( $_POST );
mysql_query ("CREATE TABLE IF NOT EXISTS `$table` (`ID` INT NOT NULL AUTO_INCREMENT , PRIMARY KEY ( `id` ) )");
$count = count($pre); $count = $count - 2;
$sql = "$qt $table SET";
for ($i=0; $i < $count; $i++)
{
$x=$i+1;
$y = $_POST[$pre[$x]];
$d = $y;
mysql_query ("ALTER TABLE `$table` ADD `$pre[$x]` TEXT NOT NULL");
$sql .= " `$pre[$x]` = '$d',";
}
$sql .= " ID = '$id' $end";
$query = mysql_query($sql) or die("$sql_error" . mysql_error());
if (empty($hack)) { } else {
$pieces = explode("/", $hack);
$h0 = $pieces[0];
$h1 = $pieces[1];
$h2 = $pieces[2];
$h3 = $pieces[3];
$h4 = $pieces[4];
$h5 = $pieces[5];
mysql_query ("ALTER TABLE `$table` $h0 $h1 $h2 $h3 $h4 $h5");
$query = mysql_query($sql) or die("$sql_error" . mysql_error());
}
if (isset($_GET[inc])) include "$_GET[inc].php";
?>
so please help me how to add md5 in PASSWORD field?
thanks in advance..

Answer 1

Best to use a salt also - hashing and verification should be done at server - see secure hash and salt for PHP
Some links on writing secure code:
OWASP Top 10 for 2010
PHP Security: Fortifying Your Website
Writing Secure PHP