Здрв,
вот не могу понять, ошибка при выполнении:
"Parse error: syntax error, unexpected T_STRING in Z:\home\test1.ru\www\ipscanner.php on line 36"

<?php
error_reporting(0);
$from = $_POST['ip1'];
$to = $_POST['ip2'];
$port1=$_POST['port1'];
$port2=$_POST['port2'];
$myFile = "ip_up.txt";
$fh = fopen($myFile, 'w');
$arry1 = explode(".",$from);
$arry2 = explode(".",$to);
$a1 = $arry1[0]; $b1 = $arry1[1]; $c1 = $arry1[2]; $d1 = $arry1[3];
$a2 = $arry2[0]; $b2 = $arry2[1]; $c2 = $arry2[2]; $d2 = $arry2[3];
while( $d2 >= $d1 || $c2 > $c1 || $b2 > $b1 || $a2 > $a1){
if($d1 > 255){
$d1 = 1;
$c1 ++;
}
if($c1 > 255){
$c1 = 1;
$b1 ++;
}
if($b1 > 255){
$b1 = 1;
$a1 ++;
}
$ip = '$a1.$b1.$c1.$d1';
for($i=$port1;$i<(int)$port2+1;$i++) {
$tB = microtime(true);
$fP = fSockOpen($ip, $i, $errno, $errstr, 1);
$tA = microtime(true);
if (!$fP) {echo $ip.":".$i." – down";}
else {



echo $ip . ":" .  $i . "–" . round(($tA – $tB) * 1000, 0) . 'ms';

fwrite($fh,$ip.\"r\"n);
}
echo "<br>";
flush();
}
$d1 ++;
}
echo '<a href="ip_up.txt">Download</a>';
?>

echo $ip . ":" . $i . "–" . round(($tA – $tB) * 1000, 0) . 'ms';

извиняйте - чайник ))

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