php curl简单图片生成base64编码

使用方法：

创建index.php 文件复制下面代码保存即可

<?php 
$url=$_GET['url'];
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);
	$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);
	$info = curl_getinfo($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;
?>

调用方法：

http://4dn.net/index.php?url=图片地址