ping.php

<?php

if($_SERVER["REQUEST_METHOD"] == "POST" ){
	$putdata = fopen("php://input", "r");
	$fp = fopen("--T-${_SERVER["REMOTE_ADDR"]}.txt", "w");
	while ($data = fread($putdata, 1024))   fwrite($fp, $data);
	fclose($fp);
	fclose($putdata);
	exit();
}

$now = time();

foreach( glob("./--T-*.txt") as $fn ){
	list(,,,$ip,)=explode("-",$fn);
	$t = $now - filemtime($fn);
	$radix = "sec";
	$color = false;
	foreach( array("min","hour") as $iiradix ){
		if( $t < 60 ){
			break;
		}
		$t = intval($t/60);
		$radix = $iiradix;
		$color = true;
	}
	if($color){
		echo "<div style=\"background-color:red;\">";
	} else {
		echo "<span style=\"background-color:cyan;\">";
	}

	echo "$ip / since $t $radix<BR>";
	echo "<PRE>";
	$fp = fopen($fn,"r");
	fpassthru($fp);
	fclose($fp);
	echo "</PRE>";
	if($color){
		echo "</div>";
	}
}