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Limitation of fwrite() , using multiple socket.


dadhich

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hi,

I am using fwrite() function to fetch web page contents, but it is not taking more then 8K data at a time.

I am using PHP 5.

Following is my code for getting page contents.

$hosts = array("example1.com","example2.com");

foreach ($hosts as $id => $host) {
	$s = stream_socket_client("$host:80", $errno, $errstr, $timeout, 
	STREAM_CLIENT_ASYNC_CONNECT|STREAM_CLIENT_CONNECT);

	if ($s) {
		$sockets[$id] = $s;
		$status[$id] = "in progress";

	} else {
		$status[$id] = "failed, $errno $errstr";
	}
}

  while (count($sockets)) {
	$read = $write = $sockets;
	$n = stream_select($read, $write, $e = null, $timeout);

	if ($n > 0) {
		foreach ($read as $r) {
			$id = array_search($r, $sockets);
			$data = fread($r,8194);					

			if (strlen($data) == 0) {
			if ($status[$id] == "in progress") {
				$status[$id] = "failed to connect";
			}
			fclose($r);
			unset($sockets[$id]);
			} else {
				$status[$id] .= $data;
			}
	  }

 

here i have opened  "n" no. of sockets for "n" no. of URL's , they are in array $sockets.

I want to fetch page content of all the pages simultaneously.

Thanks in advance.

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