后端开发|php教程
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后端开发-php教程
求解释这个函数是什么意思？
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function uc_fopen($url, $limit = 0, $post = \, $cookie = \, $bysocket = FALSE, $ip = \, $timeout = 15, $block = TRUE) {
$return = \;
$matches = parse_url($url);
!isset($matches[host]) && $matches[host] = \;
!isset($matches[path]) && $matches[path] = \;
!isset($matches[query]) && $matches[query] = \;
!isset($matches[port]) && $matches[port] = \;
$host = $matches[host];
$path = $matches[path] ? $matches[path].($matches[query] ? ?.$matches[query] : \) : /;
$port = !empty($matches[port]) ? $matches[port] : 80;
if($post) {
$out = "POST $path HTTP/1.0\r\n";
$out .= "Accept: */*\r\n";
//$out .= "Referer: $boardurl\r\n";
$out .= "Accept-Language: zh-cn\r\n";
$out .= "Content-Type: application/x-www-form-urlencoded\r\n";
$out .= "User-Agent: $_SERVER[HTTP_USER_AGENT]\r\n";
$out .= "Host: $host\r\n";
$out .= Content-Length: .strlen($post)."\r\n";
$out .= "Connection: Close\r\n";
$out .= "Cache-Control: no-cache\r\n";
$out .= "Cookie: $cookie\r\n\r\n";
$out .= $post;
} else {
$out = "GET $path HTTP/1.0\r\n";
$out .= "Accept: */*\r\n";
//$out .= "Referer: $boardurl\r\n";
$out .= "Accept-Language: zh-cn\r\n";
$out .= "User-Agent: $_SERVER[HTTP_USER_AGENT]\r\n";
$out .= "Host: $host\r\n";
$out .= "Connection: Close\r\n";
$out .= "Cookie: $cookie\r\n\r\n";
}
if(function_exists(fsockopen)) {
$fp = @fsockopen(($ip ? $ip : $host), $port, $errno, $errstr, $timeout);
} elseif (function_exists(pfsockopen)) {
$fp = @pfsockopen(($ip ? $ip : $host), $port, $errno, $errstr, $timeout);
} else {
$fp = false;
}
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if(!$fp) {
return \;
} else {
stream_set_blocking($fp, $block);// 让程序无阻塞
stream_set_timeout($fp, $timeout);
@fwrite($fp, $out);
$status = stream_get_meta_data($fp);//作用于读取流时的时间控制
if(!$status[ imed_out]) {
while (!feof($fp)) {
if(($header = @fgets($fp)) && ($header == "\r\n" || $header == "\n")) {
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