curl 抓取图片

<?php
////字体大小
//$size = 30;
////字体类型，本例为宋体
//$font ="c:/windows/fonts/simsun.ttc";
////显示的文字
//$text = "我的定制爱车";
////创建一个长为750高为1260的空白图片
//$img = imagecreate(750, 1260);
////给图片分配颜色
//imagecolorallocate($img, 0xff,0xff,0xff);
////设置字体颜色
//$black = imagecolorallocate($img, 0, 0, 0);
////将ttf文字写到图片中
//imagettftext($img, $size, 0, 220, 70, $black, $font, $text);
//
//$img1 = imagecreatefrompng("C:/Users/14189/Pictures/1.png");
//
//imagecopymerge($img, $img1, 50, 970, 0, 0, 200, 200, 100);
//
////发送头信息
//header('Content-Type: image/gif');
////输出图片
//imagegif($img);
//?>

<?php

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;

}
$url="http://pic15.nipic.com/20110628/1369025_192645024000_2.jpg";
$msg = curl_url($url,3);
if($msg['status']=='success')
    print_r($msg);die;
    echo $msg['data'];
die;
?>