代码：<?php function teacher_curl($url, $paras = array()) { $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); if (@$paras['Header']) { $Header = $paras['Header']; } else { $Header[] = "Accept:*/*"; $Header[] = "Accept-Encoding:gzip,deflate,sdch"; $Header[] = "Accept-Language:zh-CN,zh;q=0.8"; $Header[] = "Connection:close"; } curl_setopt($ch, CURLOPT_HTTPHEADER, $Header); if (@$paras['ctime']) { // 连接超时 curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $paras['ctime']); } else { curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30); } if (@$paras['rtime']) { // 读取超时 curl_setopt($ch, CURLOPT_TIMEOUT, $paras['rtime']); } if (@$paras['post']) { curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_POSTFIELDS, $paras['post']); } if (@$paras['header']) { curl_setopt($ch, CURLOPT_HEADER, true); } if (@$paras['cookie']) { curl_setopt($ch, CURLOPT_COOKIE, $paras['cookie']); } if (@$paras['refer']) { if ($paras['refer'] == 1) { curl_setopt($ch, CURLOPT_REFERER, 'http://m.qzone.com/infocenter?g_f='); } else { curl_setopt($ch, CURLOPT_REFERER, $paras['refer']); } } if (@$paras['ua']) { curl_setopt($ch, CURLOPT_USERAGENT, $paras['ua']); } else { curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36"); } if (@$paras['nobody']) { curl_setopt($ch, CURLOPT_NOBODY, 1); } curl_setopt($ch, CURLOPT_ENCODING, "gzip"); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); if (@$paras['GetCookie']) { curl_setopt($ch, CURLOPT_HEADER, 1); $result = curl_exec($ch); preg_match_all("/Set-Cookie: (.*?);/m", $result, $matches); $headerSize = curl_getinfo($ch, CURLINFO_HEADER_SIZE); $header = substr($result, 0, $headerSize); //状态码 $body = substr($result, $headerSize); //响应内容 $ret = [ "Cookie" => $matches, "body" => $body, "code" => $header ]; curl_close($ch); return $ret; } $ret = curl_exec($ch); if (@$paras['loadurl']) { $Headers = curl_getinfo($ch); $ret = $Headers['redirect_url']; } curl_close($ch); return $ret; }使用方法文档GET访问echo teacher_curl("http://api.4dn.net/djyule/djyule.php?id=385545");POST访问echo teacher_curl("http://api.4dn.net/djyule/djyule.php",[ 'post'=>[ 'id'=>'385545' ] ]);或echo teacher_curl("http://api.4dn.net/djyule/djyule.php ",[ 'post'=>'id=385545' ]);携带Cookie访问echo teacher_curl("http://api.4dn.net/djyule/djyule.php?id=385545 ",[ 'cookie'=>'cookie内容' ]);模拟访问来源Referecho teacher_curl("http://api.4dn.net/djyule/djyule.php?id=385545 ",[ 'refer'=>'http://api.4dn.net' ]);模拟UseaAgentecho teacher_curl("http://api.4dn.net/djyule/djyule.php?id=385545",[ 'ua'=>'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36' ]);文件上传echo teacher_curl("http://api.4dn.net/djyule/djyule.php?id=385545",[ 'post'=>[ 'file'=>new CURLFile(realpath("Curl.jpg")) ] ]);或echo teacher_curl("http://api.4dn.net/djyule/djyule.php?id=385545",[ 'post'=>new CURLFile(realpath("Curl.jpg")) ]);获取301跳转地址echo teacher_curl("https://mmbizurl.cn/s/RNHSo6Dek",[ 'loadurl'=>1 ]);查看返回Header信息echo teacher_curl("http://api.4dn.net/djyule/djyule.php?id=385545",[ 'header'=>1 ]);设置请求头信息echo teacher_curl("http://api.4dn.net/djyule/djyule.php?id=385545",[ 'Header'=>[ 'accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3 accept-encoding: gzip, deflate, br accept-language: zh-CN,zh;q=0.9 cache-control: max-age=0' ] ]);获取POST以后返回的Header、Body、Cookie内容echo teacher_curl("http://api.4dn.net/djyule/djyule.php?id=385545",[ 'post'=>[ 'user'=>123456, 'pwd'=>123 ], 'GetCookie'=>1 ]);

众所周知，linux的定时任务最低周期为一分钟，那么我们可以通过执行shell脚本的方法来实现秒级监控，也就是无限循环，但是会大量消耗资源，请谨慎添加。脚本:#!/bin/bash PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin export PATH step=1 注意:这里默认是1秒，可以改。 for (( i = 0; i＜60; i=(i+step) )); do curl -sS --connect-timeout 10 -m 60 '你要执行的url' echo "----------------------------------------------------------------------------" endDate=`date +"%Y-%m-%d %H:%M:%S"` echo "★[$endDate] Successful" echo "----------------------------------------------------------------------------" sleep $step done exit 0如图：执行周期随便填，添加完后一定要点执行，再看日志，一定先点执行，再看日志！ 

获取文件后缀的方法有很多种，差不多能总结出7,8种，原理基本上都分成两种。第一种：得到文件名中最后一个“.”的位置，然后再进行截取；第二种：用explode将文件名以“.”进行分割成数组，再取数组中最后一个值。具体实现源码参考：$file1 = 'e:/ddd/ww/file.doc.zip';$file2 = 'e:/ddd/ww/file.jpg.png';$suffix1 = end( explode('.', $file1) );//先把文件名以“.”分割成数组，再用end函数取数组最后一个值$suffix2 = substr( $file2, strrpos($file2, '.')+1 );//strrpos先计算出最后一个“.”的位置，再用substr截取echo $suffix1.'-'.$suffix2;