实现下载远程图片并把它保存到本地有很多方法，比如 file_get_contents和 copy方法，如果对方网站设置了防盗链，这些方法就不那么友好了，这里附上使用curl实现下载远程图片并保存到本地的方法。
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 |
//方法一 function getImage($url,$save_dir='',$filename='',$type=0){ if(trim($url)==''){ return array('file_name'=>'','save_path'=>'','error'=>1); } if(trim($save_dir)==''){ $save_dir='./'; } if(trim($filename)==''){//保存文件名 $ext=strrchr($url,'.'); if($ext!='.gif'&&$ext!='.jpg'){ return array('file_name'=>'','save_path'=>'','error'=>3); } $filename=time().$ext; } if(0!==strrpos($save_dir,'/')){ $save_dir.='/'; } //创建保存目录 if(!file_exists($save_dir)&&!mkdir($save_dir,0777,true)){ return array('file_name'=>'','save_path'=>'','error'=>5); } //获取远程文件所采用的方法 if($type){ $ch=curl_init(); $timeout=5; curl_setopt($ch,CURLOPT_URL,$url); curl_setopt($ch,CURLOPT_RETURNTRANSFER,1); curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout); $img=curl_exec($ch); curl_close($ch); }else{ ob_start(); readfile($url); $img=ob_get_contents(); ob_end_clean(); } //$size=strlen($img); //文件大小 $fp2=@fopen($save_dir.$filename,'a'); fwrite($fp2,$img); fclose($fp2); unset($img,$url); return array('file_name'=>$filename,'save_path'=>$save_dir.$filename,'error'=>0); } //方法二 function api_image($page,$n){ $url = "http://api.avatardata.cn/Joke/QueryImgByTime"; $params = "key=d1091150c206481c83e30ecd52078d02&page=".$page."&rows=50&sort=desc&time=1496656686"; $ch = curl_init(); curl_setopt( $ch, CURLOPT_HTTP_VERSION , CURL_HTTP_VERSION_1_1 ); curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT , 60 ); curl_setopt( $ch, CURLOPT_USERAGENT , '' ); curl_setopt( $ch, CURLOPT_TIMEOUT , 60); curl_setopt( $ch, CURLOPT_RETURNTRANSFER , true ); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); curl_setopt( $ch , CURLOPT_URL , $url.'?'.$params ); $response = curl_exec( $ch ); $response = json_decode($response); curl_close( $ch ); if($data = $response->result){ return $data; }else{ echo "\n";var_dump('end by:'.$page.'image_id:'.$n);exit; } } $b = 6949; for ($i=19; $i >0 ; $i--) { echo 'page='.$i.'--image_id='.$b."\n"; $data = api_image($i,$b); foreach ($data as $value) { $uri = basename($value->url); $file_name = substr($uri,strpos($uri,'=')+1); $ext = pathinfo($file_name,PATHINFO_EXTENSION); // copy(htmlspecialchars_decode($value->url),$_SERVER['DOCUMENT_ROOT'].'joke_image/'.md5($b).$ext); if($ext == 'gif'){ copy(htmlspecialchars_decode($value->url),'/data/httpd/www/Suvan/suixingbiji/joke_image/'.$b++.'.'.$ext); }else{ continue; } } } |
