PHP Gets a remote picture class instance

Example, a PHP get remote picture class. Code: if (! defined (' BasePath ')) exit (' No direct script access allowed '); /* * Remote access to picture class * * Requires the curl extension to be turned on * Simulates the PHP upload principle, creates a cache directory, and stores the remotely acquired files in the cache directory. */ Class url_pic{ protected $cache; Cache path Public function __construct ($cache = ") { if (!emptyempty ($cache)) { $this->cache = $cache; } Else { $this->cache = ' uploads/cache/'; } } Set the cache directory Public Function Set_cache ($cache = ") { if (!emptyempty ($cache)) { $this->cache = $cache; } } /* * Get remote pictures to save files to the cache folder * * $url get a link to a remote file * $error * @return 777 Returns the folder cannot be created * @return file name in cache */ Public Function Get_file ($url, $error =777) { $path = $this->build_folder ($this->cache); if ($path ==false) return $error; $curl = Curl_init (); Set the URL you need to crawl curl_setopt ($curl, Curlopt_url, $url); Set Header curl_setopt ($curl, Curlopt_header, 0); Sets the curl parameter, which requires the result to be saved to a string or output to the screen. curl_setopt ($curl, Curlopt_returntransfer, 1); Run Curl, request a Web page $file = curl_exec ($curl); Close URL Request Curl_close ($curl); Write a file to the obtained data $filename = $this->cache.date ("Ymdhis"); if (Self::build_file ($file, $filename) ==false) { return false; } return $filename; } Create a folder Public Function Build_folder ($dir) { if (!is_dir ($dir)) { if (!mkdir ($dir, 0777,true) | |!chmod ($DIR, 0777)) { return false; } } return true; } /* * Move_uploaded_file method for moving files to simulate PHP * * $cache Cache file path * $filename the absolute path of the file name that needs to be generated * * @return $filename */ Public Function Move_file ($cache, $filename) { $file = @file_get_contents ($cache); if (Self::build_file ($file, $filename) ==false) { return false; } Unlink ($cache); Clear Cached pictures return $filename; } /* * Generate Files * $file files or binary streams that need to be written * $newname the absolute path of the file name that needs to be generated */ protected static function Build_file ($file, $filename) { $write = @fopen ($filename, "w"); if ($write ==false) { return false; } if (fwrite ($write, $file) ==false) { return false; } if (fclose ($write) ==false) { return false; } return true; } } Copy Code

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