<?php
$user=$_SESSION['user'];
$data=mysql_fetch_array(mysql_query("select content.judul_content, content.kode_kategori, userapp.nama_lengkap from kategori kategori, content content, userapp userapp where kategori.kode_kategori=content.kode_kategori and kategori.kode_kategori='$user' and content.kode_content=userapp.kode_user"));
$nama_siswa=$data['nama_siswa'];
$nis=$data['nis'];
$nama_kelas=$data['nama_kelas'];
?>
i have wrong message
Notice: Array to string conversion in this my line 57 .. $data=mysql_fetch_array......