php curl简单采集图片生成base64编码(并附curl函数参数说明)
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- 许多年前的代码突然拿来一用,特做此笔记(此处的code用来定位内部错误位置,非http code)
- <?php
- $url="http://c.hiphotos.baidu.com/image/w%3D210/sign=ed30880babec8a13141a50e1c7029157/d52a2834349b033be1a9503e17ce36d3d539bd35.gif";
- function curl_url($url,$type=0,$timeout=30){
- $msg = [‘code‘=>2100,‘status‘=>‘error‘,‘msg‘=>‘未知错误!‘];
- $imgs= [‘image/jpeg‘=>‘jpeg‘,
- ‘image/jpg‘=>‘jpg‘,
- ‘image/gif‘=>‘gif‘,
- ‘image/png‘=>‘png‘,
- ‘text/html‘=>‘html‘,
- ‘text/plain‘=>‘txt‘,
- ‘image/pjpeg‘=>‘jpg‘,
- ‘image/x-png‘=>‘png‘,
- ‘image/x-icon‘=>‘ico‘
- ];
- if(!stristr($url,‘http‘)){
- $msg[‘code‘]= 2101;
- $msg[‘msg‘] = ‘url地址不正确!‘;
- return $msg;
- }
- $dir= pathinfo($url);
- //var_dump($dir);
- $host = $dir[‘dirname‘];
- $refer= $host.‘/‘;
- $ch = curl_init($url);
- curl_setopt ($ch, CURLOPT_REFERER, $refer); //伪造来源地址
- curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//返回变量内容还是直接输出字符串,0输出,1返回内容
- curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);//在启用CURLOPT_RETURNTRANSFER的时候,返回原生的(Raw)输出
- curl_setopt($ch, CURLOPT_HEADER, 0); //是否输出HEADER头信息 0否1是
- curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout); //超时时间
- $data = curl_exec($ch);
- //$httpCode = curl_getinfo($ch,CURLINFO_HTTP_CODE);
- //$httpContentType = curl_getinfo($ch,CURLINFO_CONTENT_TYPE);
- $info = curl_getinfo($ch);
- curl_close($ch);
- $httpCode = intval($info[‘http_code‘]);
- $httpContentType = $info[‘content_type‘];
- $httpSizeDownload= intval($info[‘size_download‘]);
- if($httpCode!=‘200‘){
- $msg[‘code‘]= 2102;
- $msg[‘msg‘] = ‘url返回内容不正确!‘;
- return $msg;
- }
- if($type>0 && !isset($imgs[$httpContentType])){
- $msg[‘code‘]= 2103;
- $msg[‘msg‘] = ‘url资源类型未知!‘;
- return $msg;
- }
- if($httpSizeDownload<1){
- $msg[‘code‘]= 2104;
- $msg[‘msg‘] = ‘内容大小不正确!‘;
- return $msg;
- }
- $msg[‘code‘] = 200;
- $msg[‘status‘]=‘success‘;
- $msg[‘msg‘] = ‘资源获取成功‘;
- if($type==0 or $httpContentType==‘text/html‘) $msg[‘data‘] = $data;
- $base_64 = base64_encode($data);
- if($type==1) $msg[‘data‘] = $base_64;
- elseif($type==2) $msg[‘data‘] = "data:{$httpContentType};base64,{$base_64}";
- elseif($type==3) $msg[‘data‘] = "<img src=‘data:{$httpContentType};base64,{$base_64}‘ />";
- else $msg[‘msg‘] = ‘未知返回需求!‘;
- unset($info,$data,$base_64);
- return $msg;
- }
- $msg = curl_url($url,3);
- if($msg[‘status‘]==‘success‘) echo $msg[‘data‘];
- die;
- ?>
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