代码：<?php /** * 检测文件的真实类型 * @param string $srcPath 文件路径 * @return string $realType 文件真实类型 */ $imgurl = 'https://ae01.alicdn.com/kf/HTB1w5xdS4TpK1RjSZR0762EwXXa7.png'; echo file_type_detect($imgurl); function file_type_detect($srcPath){ $types = array( 6677 => 'bmp', 7173 => 'gif', 7368 => 'mp3', 13780 => 'png', 255216 => 'jpg', ); $binary = curl_get($srcPath); $bytes = substr($binary, 0, 2); $head = @unpack('C2char', $bytes); $typeCode = intval($head['char1'].$head['char2']); $realType = isset($types[$typeCode]) ? $types[$typeCode] : $typeCode; return $realType; } function curl_get($url){ $ch=curl_init($url); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Linux; U; Android 4.4.1; zh-cn; R815T Build/JOP40D) AppleWebKit/533.1 (KHTML, like Gecko)Version/4.0 MQQBrowser/4.5 Mobile Safari/533.1'); curl_setopt($ch, CURLOPT_TIMEOUT, 10); $content=curl_exec($ch); curl_close($ch); return($content); } ?>

美化演示教程简介浏览器自带的alt和title提示太丑了，所以我们需要美化一下，百度有许多，不过对我们这些小白来说很难。第一步放以下js到公用js里面var sweetTitles = { x: 10, y: 20, tipElements: "a,span,img,div ", noTitle: false, init: function() { var b = this.noTitle; $(this.tipElements).each(function() { $(this).mouseover(function(e) { if (b) { isTitle = true } else { isTitle = $.trim(this.title) != '' } if (isTitle) { this.myTitle = this.title; this.title = ""; var a = "<div class='tooltip'><div class='tipsy-arrow tipsy-arrow-n'></div><div class='tipsy-inner'>" + this.myTitle + "</div></div>"; $('body').append(a); $('.tooltip').css({ "top": (e.pageY + 20) + "px", "left": (e.pageX - 20) + "px" }).show('fast') } }).mouseout(function() { if (this.myTitle != null) { this.title = this.myTitle; $('.tooltip').remove() } }).mousemove(function(e) { $('.tooltip').css({ "top": (e.pageY + 20) + "px", "left": (e.pageX - 20) + "px" }) }) }) } }; $(function() { sweetTitles.init() });第二步css也是/*tips*/ .tooltip { font-size:12px; position:absolute; padding:5px; z-index:100000; opacity:.8; font-family:Microsoft Yahei } .tipsy-arrow { position:absolute; width:0; height:0; line-height:0; border:6px dashed #000; top:0; left:20%; margin-left:-5px; border-bottom-style:solid; border-top:0; border-left-color:transparent; border-right-color:transparent } .tipsy-arrow-n { border-bottom-color:#666 } .tipsy-inner { background-color:#666; color:#FFF; max-width:200px; padding:5px 8px 4px 8px; text-align:center; border-radius:3px }

加群链接需要idkey的，该源码自动解析idkey，实现免idkey加群。例如：你的域名/qqun.php?qun=99968722代码如下：<?php /*免IDKEY加群 */ error_reporting(0); function get_curl($url, $post=0, $referer=0, $cookie=0, $header=0, $ua=0, $nobaody=0) { $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); if ($post) { curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_POSTFIELDS, $post); } if ($header) { curl_setopt($ch, CURLOPT_HEADER, true); } if ($cookie) { curl_setopt($ch, CURLOPT_COOKIE, $cookie); } if ($referer) { curl_setopt($ch, CURLOPT_REFERER, $referer); } if ($ua) { curl_setopt($ch, CURLOPT_USERAGENT, $ua); } else { curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Linux; U; Android 4.0.4; es-mx; HTC_One_X Build/IMM76D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0"); } if ($nobaody) { curl_setopt($ch, CURLOPT_NOBODY, 1); } curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); $ret = curl_exec($ch); curl_close($ch); return $ret; } $qun=isset($_GET['qun'])?$_GET['qun']:'99968722'; $data=get_curl('http://shang.qq.com/wpa/g_wpa_get?guin='.$qun.'&t='.time(),0,'http://qun.qq.com/join.html'); $arr=json_decode($data,true); $idkey=$arr['result']['data'][0]['key']; $url='http://shang.qq.com/wpa/qunwpa?idkey='.$idkey; header("Location:{$url}"); exit; ?>