<?php
//没有图片增加默认图片,有图片路径，但是没有图片文件解决方案
$imgurl="https://www.wlphp.com/content/templates/FLY/img/1logo.png";
$imgurl="http://www.xsydcyydy.com/UpLoadFiles/shopStore/Logo/2016/12/shopStoreLogo20161226112348505013.jpg";
$imgurl="http://www.xsydcyydy.com/Content/images/logo.png";
$imgurl="";
print_r(get_file_header_info($imgurl));
//业务层
if(get_file_header_info($imgurl)['download_content_length']!="-1" && get_file_header_info($imgurl)['download_content_length']!="0"){
echo "有图片";
}else {
echo "无图片";
}
//函数
function get_file_header_info($url) {
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url); //设置URL
curl_setopt($curl, CURLOPT_HEADER, 1); //获取Header
curl_setopt($curl, CURLOPT_NOBODY, true); //Body就不要了吧，我们只是需要Head
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); //数据存到成字符串吧，别给我直接输出到屏幕了
$data = curl_exec($curl); //开始执行啦～
$return = curl_getinfo($curl); //我知道HTTPSTAT码哦～
curl_close($curl); //用完记得关掉他
return $return;
}
返回的结果1：
Array
(
[url] => https://www.wlphp.com/content/templates/FLY/img/1logo.png
[content_type] => text/html; charset=iso-8859-1
[http_code] => 404
[header_size] => 165
[request_size] => 88
[filetime] => -1
[ssl_verify_result] => 0
[redirect_count] => 0
[total_time] => 0.277952
[namelookup_time] => 0.034191
[connect_time] => 0.058239
[pretransfer_time] => 0.25233
[size_upload] => 0
[size_download] => 0
[speed_download] => 0
[speed_upload] => 0
[download_content_length] => -1
[upload_content_length] => 0
[starttransfer_time] => 0.277896
[redirect_time] => 0
[certinfo] => Array
(
)
[primary_ip] => 47.94.158.11
[redirect_url] =>
)
无图片
返回结果2：
Array
(
[url] => https://www.wlphp.com/content/templates/FLY/img/logo.png
[content_type] => image/png
[http_code] => 200
[header_size] => 255
[request_size] => 87
[filetime] => -1
[ssl_verify_result] => 0
[redirect_count] => 0
[total_time] => 0.25494
[namelookup_time] => 0.006586
[connect_time] => 0.031986
[pretransfer_time] => 0.228346
[size_upload] => 0
[size_download] => 0
[speed_download] => 0
[speed_upload] => 0
[download_content_length] => 2716
[upload_content_length] => 0
[starttransfer_time] => 0.254905
[redirect_time] => 0
[certinfo] => Array
(
)
[primary_ip] => 47.94.158.11
[redirect_url] =>
)
有图片
注意：
download_content_length 没有图片文件的时候，有的时候是-1，有的时候是0。
http_code不准确，不能作为参考。