PHP capture remote picture Save local

/** * Download remote picture to local * * @param $url string remote file Address * @param $filename string file name after save (the file name is randomly generated when empty, otherwise the original file name) * @param $fileType  The file type allowed by array * @param the path saved by the $dirName string file (the remainder of the path is automatically generated based on the time system) * @param $type int How to get the file remotely * @return JSON returns the file name, save path  * @author www.phpxs.com */function download_image ($url, $fileName = ", $dirName, $fileType = array (' jpg ', ' gif ', ' PNG '),    $type = 1) {if ($url = = ") {return false;     }//Get file original filename $defaultFileName = basename ($url);    Get file type $suffix = substr (STRRCHR ($url, '. '), 1);    if (!in_array ($suffix, $fileType)) {return false; }//Set file name after save $fileName = $fileName = = "? Time (). Rand (0, 9). '.' .     $suffix: $defaultFileName;        Gets the remote file resource if ($type) {$ch = Curl_init ();        $timeout = 30;        curl_setopt ($ch, Curlopt_url, $url);        curl_setopt ($ch, Curlopt_returntransfer, 1);        curl_setopt ($ch, Curlopt_connecttimeout, $timeout);        $file = curl_exec ($ch); Curl_cloSE ($ch);        } else {Ob_start ();        ReadFile ($url);        $file = Ob_get_contents ();    Ob_end_clean (); }//Set File save path//$dirName = $dirName. '/' . Date (' Y ', Time ()). '/' . Date (' m ', Time ()). '/' .    Date (' d ', Time ()); $dirName = $dirName. '/' .    Date (' Ym ', Time ());    if (!file_exists ($dirName)) {mkdir ($dirName, 0777, true); }//Save file $res = fopen ($dirName. '/' .    $fileName, ' a ');    Fwrite ($res, $file);     Fclose ($res);    Return Array (' fileName ' = = $fileName, ' savedir ' = $dirName);     }/** * Bulk Download the images in the blog to local */public function index () {global $_g;    $blogModel = Model (' blog ', ' blog ');     $list = $blogModel->order (' gid desc ')->limit (Ten)->findpage (); $page = GET_GPC (' page ')?    GET_GPC (' page '): 1;    $totalPages = $list [' TotalPages '];     $page = $page + 1; if ($page > $totalPages) {die (' Update complete!    '); } foreach ($list [' data '] as $val) {$content = $val [' content '];         $excerpt = $val [' excerpt '];         $_g[' iscontentupdate ' = $_g[' isexcerptupdate '] = false; /* Content */$content = Preg_replace_callback ("/src=\" (http:\/\/images\.cnblogs\.com\/cnblogs_com[^\ "]+) \"/", Function (            $matches) {global $_g;             $_g[' iscontentupdate ') = true;             Download remote picture to local $res = Download_image ($matches [1], ' old ', ' d:/php/xampp/htdocs/emlog/content/uploadfile '); Return the downloaded Image URL address return ' src= '/content/uploadfile/'. Date (' Ym ', Time ()). '/' . $res [' FileName '].         '"';         }, $content); /* Summary */$excerpt = Preg_replace_callback ("/src=\" (http:\/\/images\.cnblogs\.com\/cnblogs_com[^\ "]+) \"/", Function (            $matches) {global $_g;             $_g[' isexcerptupdate ') = true;             Download remote picture d to local $res = Download_image ($matches [1], ' old ', ' d:/php/xampp/htdocs/emlog/content/uploadfile '); Return the downloaded Image URL address return ' src= '/content/uploadfile/' . Date (' Ym ', Time ()). '/' . $res [' FileName '].         '"';         }, $EXCERPT);        /* Update Database */$where = array (' gid ' = $val [' gid ']);         $data = Array ();        if ($_g[' iscontentupdate ') {$data [' content '] = $content;        } if ($_g[' isexcerptupdate ') {$data [' excerpt '] = $excerpt;        if ($data) {$blogModel->where ($where)->save ($data);    }/* Update next page */$url = URL (' blog/main/index ', Array (' page ' = ' $page)); $msg = ' updating '. $page. '/' .    $totalPages; Redirect ($url, 2, $msg);}

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