PHP script works from command line but not from Apache

<?php // RAY_temp_panchux.php
error_reporting(E_ALL);

// TEST NON-ENGLISH CHARACTERS IN COLUMN NAMES IN MySQL

// IMPORTANT PAGES FROM THE MANUALS
// MAN PAGE: http://us2.php.net/manual/en/ref.mysql.php
// MAN PAGE: http://us2.php.net/manual/en/mysql.installation.php

// CONNECTION AND SELECTION VARIABLES FOR THE DATABASE
$db_host = "localhost"; // PROBABLY THIS IS OK
$db_name = "??";        // GET THESE FROM YOUR HOSTING COMPANY
$db_user = "??";
$db_word = "??";


// OPEN A CONNECTION TO THE DATA BASE SERVER
// MAN PAGE: http://us2.php.net/manual/en/function.mysql-connect.php
if (!$db_connection = mysql_connect("$db_host", "$db_user", "$db_word"))
{
    $errmsg = mysql_errno() . ' ' . mysql_error();
    echo "<br/>NO DB CONNECTION: ";
    echo "<br/> $errmsg <br/>";
}

// SELECT THE MYSQL DATA BASE
// MAN PAGE: http://us2.php.net/manual/en/function.mysql-select-db.php
if (!$db_sel = mysql_select_db($db_name, $db_connection))
{
    $errmsg = mysql_errno() . ' ' . mysql_error();
    echo "<br/>NO DB SELECTION: ";
    echo "<br/> $errmsg <br/>";
    die('NO DATA BASE');
}
// IF WE GOT THIS FAR WE CAN DO QUERIES


// WANT TO RUN A QUERY LIKE THIS:
// DIVISA WHERE AÑO=11 AND MES=2 AND DIA=28


// CREATING THE TABLE
$sql = "CREATE TEMPORARY TABLE divisa  (
        AÑO INT NOT NULL DEFAULT 0,
        MES INT NOT NULL DEFAULT 0,
        DIA INT NOT NULL DEFAULT 0     )";

if (!$res = mysql_query($sql))
{
    // MAN PAGE: http://us.php.net/manual/en/function.mysql-error.php
    $errmsg = mysql_errno() . ' ' . mysql_error();
    echo "<br/>QUERY FAIL: ";
    echo "<br/>$sql <br/>";
    die($errmsg);
}

// INSERT SOME DATA
$sql = "INSERT INTO divisa ( AÑO, MES, DIA ) VALUES ( 11, 2, 28 )";
if (!$res = mysql_query($sql))
{
    // MAN PAGE: http://us.php.net/manual/en/function.mysql-error.php
    $errmsg = mysql_errno() . ' ' . mysql_error();
    echo "<br/>QUERY FAIL: ";
    echo "<br/>$sql <br/>";
    die($errmsg);
}
$sql = "INSERT INTO divisa ( AÑO, MES, DIA ) VALUES ( 11, 2, 28 )";
if (!$res = mysql_query($sql))
{
    // MAN PAGE: http://us.php.net/manual/en/function.mysql-error.php
    $errmsg = mysql_errno() . ' ' . mysql_error();
    echo "<br/>QUERY FAIL: ";
    echo "<br/>$sql <br/>";
    die($errmsg);
}


// QUERY TO FIND THE DATA WE JUST INSERTED
$sql = "SELECT * FROM divisa WHERE AÑO=11 AND MES=2 AND DIA=28";
if (!$res = mysql_query($sql))
{
    // MAN PAGE: http://us.php.net/manual/en/function.mysql-error.php
    $errmsg = mysql_errno() . ' ' . mysql_error();
    echo "<br/>QUERY FAIL: ";
    echo "<br/>$sql <br/>";
    die($errmsg);
}
$num = mysql_num_rows($res);
echo "<br/>$num ROWS FOUND";

// SHOW THE VALUES FOR THIS TABLE
$sql = "SHOW CREATE TABLE divisa";
if (!$res = mysql_query($sql))
{
    $errmsg = mysql_errno() . ' ' . mysql_error();
    echo "<br/>QUERY FAIL: ";
    echo "<br/>$sql <br/>";
    die($errmsg);
}
while ($show_creates = mysql_fetch_assoc($res))
{
    $my_creates[] = $show_creates["Create Table"];
}
var_dump($my_creates);

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