PHP Remote Download class sharing, PHP remote download sharing _php Tutorial

PHP Remote Download class sharing, PHP remote download sharing

Examples of this article for everyone to share the PHP remote download class, as follows

<?php/** * Download remote file class support breakpoint continuation */class httpdownload {private $m _url = ""; Private $m _urlpath = ""; Private $m _scheme = "http"; Private $m _host = ""; Private $m _port = "80"; Private $m _user = ""; Private $m _pass = ""; Private $m _path = "/"; Private $m _query = ""; Private $m _FP = ""; Private $m _error = ""; Private $m _httphead = "";  Private $m _html = ""; /** * Initialize */public function privateinit ($url) {$urls = ""; $urls = @parse_url ($url); $this->m_url = $url; if (Is_array ($urls)) {$this->m_host = $urls ["Host"], if (!empty ($urls ["scheme"]) $this->m_scheme = $urls ["scheme "]; if (!empty ($urls ["User"]) $this->m_user = $urls ["User"]; if (!empty ($urls ["Pass"]) $this->m_pass = $urls ["Pass"]; if (!empty ($urls ["Port"]) $this->m_port = $urls ["Port"]; if (!empty ($urls ["path"])) $this->m_path = $urls ["Path"]; $this->m_urlpath = $this->m_path; if (!empty ($urls ["Query"])) {$this->m_query = $urls ["Query"]; $this->m_urlpath. = "?". $this->m_query; }}}/** * Open the specified URL */fUnction OpenUrl ($url) {#重设各参数 $this->m_url = ""; $this->m_urlpath = ""; $this->m_scheme = "http"; $this->m_host = ""; $this->m_port = "80"; $this->m_user = ""; $this->m_pass = ""; $this->m_path = "/"; $this->m_query = ""; $this->m_error = ""; $this->m_httphead = ""; $this->m_html = ""; $this->close (); #初始化系统 $this->privateinit ($url); $this->privatestartsession (); }/** * Get the cause of an operation error */public function Printerror () {echo "error message:". $this->m_error; echo "Specific return header:
"; foreach ($this->m_httphead as $k = + $v) {echo "$k + $v
\ r \ n "; }}/** * Determine if the answer to the header sent with the Get method is correct */public function Isgetok () {if (Ereg ("^2", $this->gethead ("Http-state")) {return T Rue } else {$this->m_error. = $this->gethead ("Http-state"). "-". $this->gethead ("Http-describe"). "
"; return false; }}/** * see if the page returned is text type */public function Istext () {if (Ereg ("^2", $this->gethead ("Http-state") && eregi (" ^text ", $this->gethead (" Content-type ")) {return true;} else {$this->m_error. =" Content is non-text type
"; return false; }}/** * Determines whether the returned page is of a specific type */public function Iscontenttype ($ctype) {if (Ereg ("^2", $this->gethead ("Http-state")) && Amp $this->gethead ("content-type") = = Strtolower ($ctype)) {return true;} else {$this->m_error. = "wrong type". $this->ge THead ("Content-type"). "
"; return false; }}/** * Download the file using the HTTP protocol */public function Savetobin ($savefilename) {if (! $this->isgetok ()) return false; if (@feof ($t HIS-&GT;M_FP) {$this->m_error = "Connection is OFF!) "; return false; } $fp = fopen ($savefilename, "w") or Die ("Write File $savefilename failed! "); while (!feof ($this->m_fp)) {@fwrite ($fp, fgets ($this->m_fp,256)), @fclose ($this->m_fp); return true; }/** * Save page content as Text file */public function Savetotext ($savefilename) {if ($this->istext ()) {$this->savebinfile ($sa Vefilename);  } else {return "";}} /** * Use the HTTP protocol to get the contents of a Web page */public function gethtml () {if (! $this->istext ()) return ""; if ($this->m_html!= "") return $this->m_html; if (! $this->m_fp| | @feof ($this->m_fp)) return ""; while (!feof ($this->m_fp)) {$this->m_html. = fgets ($this->m_fp,256);} @fclose ($this->m_fp); return $this->m_html; }/** * Start HTTP session */public function Privatestartsession () {if (! $this->privateopenhost ()) {$this->m_error. = "Open Remote host Error! "; REturn false; if ($this->gethead ("http-edition") = = "http/1.1") {$HTTPV = "http/1.1";} else {$HTTPV = "http/1.0";} fputs ($this-&G T;M_FP, "GET". $this->m_urlpath. "$HTTPV \ r \ n"); Fputs ($this->m_fp, "Host:". $this->m_host. " \ r \ n "); Fputs ($this->m_fp, "Accept: */*\r\n"); Fputs ($this->m_fp, "user-agent:mozilla/4.0+ (compatible;+msie+6.0;+windows+nt+5.2) \ r \ n"); #HTTP1.1 The protocol must close the link after the document is closed, otherwise you cannot use feof to determine the end if ($HTTPV = = "http/1.1") {fputs ($this->m_fp, "connection:close\r\n\r") when reading the document. \ n "); } else {fputs ($this->m_fp, "\ r \ n");} $httpstas = Fgets ($this->m_fp,256); $httpstas = Split ("", $httpstas); $this->m_httphead["http-edition") = Trim ($httpstas [0]); $this->m_httphead["http-state") = Trim ($httpstas [1]); $this->m_httphead["http-describe"] = ""; for ($i =2; $i
 
  
m_httphead["Http-describe"]. = "". Trim ($httpstas [$i]);} while (!feof ($this->m_fp)) {$line = Str_replace ("\" "," ", Trim (fgets ($this->m_fp,256))), and if ($line = =" ") break; if (Ereg (":", $line)) {$lines = Split (":", $line); $this->m_httphead[strtolower (Trim ($lines [0])] = Trim ($lines [1]); }}}/** * Gets the value of an HTTP header */Public Function GetHead ($headname) {$headname = Strtolower ($headname); if (Isset ($this->m_  httphead[$headname]) {return $this->m_httphead[$headname];} else {return "";}} /** * Open Connection */public function Privateopenhost () {if ($this->m_host== "") return false; $this->m_fp = @fsockopen ($this ->m_host, $this->m_port, & $errno, & $errstr, 10);  if (! $this->m_fp) {$this->m_error = $errstr; return false;} else {return true;}}  /** * Close connection */public function close () {@fclose ($this->m_fp);}} #两种使用方法, respectively: #打开网页 $httpdown = new Httpdownload (); $httpdown->openurl ("http://www.google.com.hk"); echo $httpdown->gethtml (); $httpdown-&GT;CLOSE (); #下载文件 $file = new Httpdownload (); # Instantiate class $file->openurl ("Http://dldir1.qq.com/qqfile/qq/QQ8.2/17724/QQ8.2.exe"); # Remote File address $file->savetobin ("Qq.exe"); # Save path and file name $file->close (); # Freeing Resources
 

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http://www.bkjia.com/PHPjc/1119959.html www.bkjia.com true http://www.bkjia.com/PHPjc/1119959.html techarticle PHP Remote Download class sharing, PHP remote download Share This example for everyone to share the PHP remote download class, as follows PHP/** * Download remote file class Support Breakpoint continued */class Httpdownload {...

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