远程采集接口图片案例

<?php

header('Content-type: application/json');

//图片接口地址(这里又要拿小诗梦开刀了)
$url = 'https://cdn.mom1.cn/?mom=302';
// 图片存放文件夹
$path = 'images/';
//获取图片真实地址
$url = imgget($url);
//获取文件名
$filenames = basename($url);

$file_c = $path.$filenames;

if(file_exists($file_c)){
  //文件已经存在
  echo json_encode(array('url'=>$url,'filename'=>$filenames,'state'=>'202'));
}else{
  if(download($url,$path)){
    //采集成功
    echo json_encode(array('url'=>$url,'filename'=>$filenames,'state'=>'200'));
  }else{
    //采集失败
    echo json_encode(array('url'=>$url,'filename'=>$filenames,'state'=>'201'));
  }

}


function imgget($url){
  // 获取图片真实地址
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_VERBOSE, true);
  curl_setopt($ch, CURLOPT_HEADER, true);
  curl_setopt($ch, CURLOPT_NOBODY, true);
  curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_TIMEOUT, 20);
  curl_setopt($ch, CURLOPT_AUTOREFERER, true);
  curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
  // 下面两行为不验证证书和 HOST，建议在此前判断 URL 是否是 HTTPS
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
  curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
  // $ret 返回跳转信息
  $ret = curl_exec($ch);
  // $info 以 array 形式返回跳转信息
  $info = curl_getinfo($ch);

  // 记得关闭curl
  curl_close($ch);
  // 跳转后的 URL 信息
  return $info['url'];
}

function download($url, $path = 'images/')
{
  //远程下载保存
  if (! file_exists ( $path )) {
    mkdir ( "$path", 0777, true );
  }
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
  $file = curl_exec($ch);
  curl_close($ch);
  $filename = pathinfo($url, PATHINFO_BASENAME);
  $resource = fopen($path . $filename, 'a');
  fwrite($resource, $file);
  fclose($resource);
  return true;
}