Remove the line that found in array while processes a code PHP - php

Question

i have the following code which getting some links from remote.
Now the code while processesing and found the hash [if($done==true)] keep sending request to the host even if the hash have been found in the link.
i need the code stop sending requests to the host that we found its hash, and keep working on the other hosts, so it will be exclude all founded hosts from the the second foreach [foreach (file("hosts.txt")] and not send more request to them.
please if any one can help to fix my code .
sorry about bad english.
$MAXPROCESS=50;
$execute=0;
$Arr = array();
foreach (file("hashes.txt") as $hashkey => $hash)
{
$hash = trim($hash);
$pid = pcntl_fork();
$execute++;
if ($execute >= $MAXPROCESS)
{
while (pcntl_waitpid(0, $status) != -1)
{
$status = pcntl_wexitstatus($status);
$execute =0;
//sleep(1);
flush();
//echo " [$ipkey] Child $status completed\n";
}
}
if (!$pid)
{
foreach (file("hosts.txt") as $hostkey => $hosts)
{
$host = trim($hosts);
if(!in_array($host,$Arr))
{
$done = CHECK_URL($host.$hash.'.xml');
if($done==true)
{
$Arr[] = $host;
echo "\n\r\n\r".$host." : Found [$hashkey] ------------\n\r\n\r";
}else{
echo $host." : error [$hashkey]\n";
}
}else{
return false;
}
flush();
}
exit;
}
}
function CHECK_URL($url)
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.7.3) Gecko/20041001 Firefox/0.10.1" );
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT, 5 );
curl_setopt( $ch, CURLOPT_TIMEOUT, 5 );
$result = curl_exec($ch);
$response = curl_getinfo($ch);
//if($response['http_code']=="200" || preg_match('/xml/i', $result))
if($response['http_code']=="200")
{
file_put_contents('hash.found.txt', $url."\n", FILE_APPEND);
return true;
}
curl_close($ch); // Close the curl stream
}
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