mysql_connect("host", "user", "passwd");
$image=mysql("db", " pics,type from pictures id=$id");
Header("Cache-Control: public, must-revalidate");
Header("Vary: Content-ID");
Header("Content-ID: ".md5(mysql_result($image, 0, "pics")));
Header("Content-type: ".mysql_result($image, 0, "type"));
echo mysql_result($image, 0, "pics");
mysql_freeResult($image);
mysql_close();
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