PHP Variable in Select Statement

Question

I\'ve written this PHP-Script which is working, and now I want to change the row name into a variable to (not sure if row is correct), I mean the \"name\" from the selec

Answer 1

You can usi it something like this. Currently i assume you get only one row back and want to use only one field.

<?php
require_once 'config.php';

$id = $_GET["id"]; //ID DES DERZEITIGEN KONTAKTES
$user = $_GET["user"];  //ID DES DERZEITIGEN USERS

//Use variable inside closures `` and just in case escape it, depends how you get variable
$query = mysql_query("SELECT `".mysql_real_escape_string($variable)."` FROM contacts WHERE contact_id='". mysql_real_escape_string( $id ) ."' and user_id='1';");


if (!$query) {
    echo 'Could not run query: ' . mysql_error();
    exit;
}
$row = mysql_fetch_row($query); //Retriev first row, with multiple rows use mysql_fetch_assoc
$retval = $row['0']; //Retriev first field

$retval = trim($retval); 
echo $retval;
?>