PHP Decode

<?php 
$tabela4 = "visitas"; 
 
$ip = $_SERVER["REMOTE_ADDR"]; 
$host = gethostbyaddr("$ip"); 
 
// PEGA DIA, MS, ANO e HORA 
$dia = date("d"); 
$mes = date("m"); 
$ano = date("Y"); 
$dia_semana = date("w"); 
$h = date("H"); 
$m = date("i"); 
$s = date("s"); 
$h2 = date("H")+1; 
 
$hora1 = "$h:$m:$s"; 
 
$dataH = "$ano-$mes-$dia"; 
 
$wh1 = "AND data LIKE ('".$dataH." $h:%:%')"; 
 
$busca = "SELECT * FROM $tabela4 WHERE ip='$ip' $wh1"; 
//echo $busca; 
	if(!mysql_num_rows(mysql_query($busca))){ 
	//echo "NAO TEM"; 
	$sql3 = "INSERT INTO visitas VALUES('$ip','$dataH $hora1','$dia_semana','$host');"; 
	$contador = mysql_query($sql3); 
	} else { 
	//echo "JA TEM"; 
	} 
 
?>