MySQLクエリの各結果をテキストファイルに1つずつ入れる方法は？

Question

while($row= mysql_fetch_object($result)){ 
    $row->products_price=$row->products_price-($row->products_price*0.05); 
    echo $row->products_id ." ". $row->products_price."<br/>"; 
} 

は、どのように私は1つの行時間とtxtファイルに$row->products_id ." ". $row->products_priceを置くことができますか？

Answer 1

$content = ""; 
while ($row = mysql_fetch_object($result)){ 
    $row->products_price = $row->products_price-($row->products_price * 0.05); 
    $content .= $row->products_id . " " . $row->products_price . "\r\n"; 
} 
file_put_contents("filename.txt", $content, LOCK_EX); 

編集：（ヒカル-進藤のバージョン）

while ($row = mysql_fetch_object($result)){ 
    $row->products_price = $row->products_price-($row->products_price * 0.05); 
    file_put_contents("filename.txt", $row->products_id . " " . $row->products_price . "\r\n", FILE_APPEND | LOCK_EX); 
} 

Answer 2

$fh = fopen("myfile.txt", "w+"); 
while($row= mysql_fetch_object($result)) 
{ 
    $row->products_price=$row->products_price-($row->products_price*0.05); 
    fwrite($fh, $row->products_id ." ". $row->products_price."\r\n"); 
} 
fclose($fh);