php curl采集

<?php set_time_limit(0); 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'&&$ext!='.png'&&$ext!='.jpeg'){ return array('file_name'=>'','save_path'=>'','error'=>3); } $filename=time().rand(0,10000).$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); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE ); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); $img=curl_exec($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); } 调用例子 getImage('https://gss1.bdstatic.com/5eN1dDebRNRTm2_p8IuM_a/res/img/richanglogo168_24.png','./Data','logo_curl_https2.png',1); ?>