php代码

第一，黑名单过滤

函数is_spam($text，$file，$split = ‘:’，$regex = false){

$handle = fopen($file，’ Rb ‘)；

$contents = fread($handle，filesize($ file))；

fclose($ handle)；

$lines = explode(“n “，$ contents)；$ arr = array()；foreach($ lines as $ line){ list($ word，$count) = explode($split，$ line)；if($ regex)$ arr[$ word]= $ count；else $ arr[preg _ quote($ word)]= $ count；} preg_match_all(“~ “)。内爆(‘ | ‘，array_keys($arr))。” ~ “，$text，$ matches)；$ temp = array()；foreach($ matches[0]as $ match){ if(！in_array($match，$ temp)){ $ temp[$ match]= $ temp[$ match]+1；if($ temp[$ match]& gt；= $arr[$word])返回true} }返回false} $ file = ‘ spam.txt$str = ‘此字符串有猫，狗字’；if(is_spam($str，$file))回显“这是垃圾邮件”；else回显“这不是垃圾邮件”；阿瑟:3只狗:3只猫:2只猴子:2

第二，随机颜色生成器

函数randomColor() {

$ str = ‘ #

for($ I = 0；$ i & lt6 ;$i++) {

$randNum = rand(0，15)；

开关($randNum) {

案例10:$ rand num = ‘ A ‘；打破；

案例11:$ rand num = ‘ B ‘；打破；

案例12:$ rand num = ‘ C ‘；打破；

案例13:$ rand num = ‘ D ‘；打破；

案例14:$ rand num = ‘ E ‘；打破；

案例15:$ rand num = ‘ F ‘；打破；

}

$str。= $ randNum

}

返回$ str} $ color = random color()；

第三，从网上下载文件

set _ time _ limit(0)；//支持所有文件类型//此处URL:$ URL = ‘ http://som site . com/some _ video . flv ‘；$ pi = pathinfo($ URL)；$ ext = $ pi[‘ extension ‘]；$ name = $ pi[‘ filename ‘]；//创建新的cURL资源$ ch = cURL _ init()；//设置URL和其他合适的选项curl_setopt($ch，CURLOPT_URL，$ URL)；curl_setopt($ch，CURLOPT_HEADER，false)；curl_setopt($ch，CURLOPT_BINARYTRANSFER，true)；curl_setopt($ch，CURLOPT_AUTOREFERER，true)；curl_setopt($ch，CURLOPT_FOLLOWLOCATION，true)；curl_setopt($ch，CURLOPT_RETURNTRANSFER，true)；//抓取URL并传递给浏览器$ opt = curl _ exec($ ch)；//关闭cURL资源，释放系统资源cURL _ close($ ch)；$seFile = $name。’.’。$ extif(preg_match(“/[^0-9a-z._-]/i “，$ se file))$ se file = MD5(microtime(true))。’.’。$ ext$handle = fopen($seFile，’ WB ‘)；fwrite($handle，$ opt)；fclose($ handle)；

第四，Alexa/Google页面排名

function page_rank($page, $type = ‘alexa’){ switch($type){ case ‘alexa’: $url = ‘http://alexa.com/siteinfo/’; $handle = fopen($url.$page, ‘r’); break; case ‘google’: $url = ‘http://google.com/search?client=nclient-auto&ch=6-1484155081&features=Rank&q=info:’; $handle = fopen($url.’http://’.$page, ‘r’); break; } $content = stream_get_contents($handle); fclose($handle); $content = preg_replace(“~(n|t|ss+)~”,”, $content); switch($type){ case ‘alexa’: if(preg_match(‘~<div class=”data (down|up)”><img.+?>(.+?) </div>~im’,$content,$matches)){ return $matches[2]; }else{ return FALSE; } break; case ‘google’: $rank = explode(‘:’,$content); if($rank[2] != ”) return $rank[2]; else return FALSE; break; default: return FALSE; break; } } // Alexa Page Rank: echo ‘Alexa Rank: ‘.page_rank(‘techug.com’); echo ‘ ‘; // Google Page Rank echo ‘Google Rank: ‘.page_rank(‘techug.com’, ‘google’);函数page_rank($page，$ type = ‘ Alexa ‘){ switch($ type){ case ‘ Alexa ‘:$ URL = ‘ http://Alexa . com/siteinfo/’；$handle = fopen($url。$page，’ r ‘)；打破；case ‘ Google ‘:$ URL = ‘ http://Google . com/search？n client-auto & amp；ch=6-1484155081。特征=等级& ampq = info:’；$handle = fopen($url。http://’。$page，’ r ‘)；打破；} $ content = stream _ get _ contents($ handle)；fclose($ handle)；$ content = preg _ replace(” ~(n | t | ss+)~ “，”，$ content)；switch($ type){ case ‘ Alexa ‘:if(preg _ match(‘ ~ & lt；div class = ” data(down | up)” & gt；& ltimg。+?& gt(.+?)& lt/div & gt；~im ‘，$content，$ matches)){ return $ matches[2]；}else{返回FALSE}破；case ‘google’: $rank = explode(‘:’，$ content)；if($rank[2]！= ‘ ‘)返回$ rank[2]；否则返回FALSE打破；默认值:返回FALSE打破；} } // Alexa页面排名:echo ‘Alexa排名:’。page _ rank(‘ techug . com ‘)；回显“”；//Google Page Rank echo ‘ Google Rank:’。page_rank(‘techug.com ‘，’ Google ‘)；

动词 （verb的缩写）强制下载文件

$ filename = $ _ GET[‘ file ‘]；//从URL获取fileid查询文件ID $ Query = sprintf(” SELECT * FROM tableName WHERE ID = ‘ % s ‘ “，MySQL _ real _ escape _ string($ filename))；$ SQL = MySQL _ query($ query)；if(MySQL _ num _ rows($ SQL)& gt；0){ $ row = MySQL _ fetch _ array($ SQL)；//设置一些headers header(” Pragma:public “)；header(” Expires:0 “)；header(” Cache-Control:must-revalidate，post-check=0，pre-check = 0 “)；头(“内容类型:应用程序/强制下载”)；报头(“内容类型:应用/八位字节流”)；头(“内容类型:应用/下载”)；header(“内容-处置:附件；文件名= “。basename($row[‘FileName’])。”;”);头(“内容-传输-编码:二进制”)；header(“Content-Length:”。filesize($ row[‘ FileName ‘])；@ readfile($ row[‘ FileName ‘])；退出(0)；} else { header(” Location:/”)；退出；}

6.通过电子邮件显示用户的Grator头像。

$gratar_link = ‘http://www.gratar.com/atar/’ . md5($comment_author_email) . ‘?s=32’; echo ‘<img src=”‘ . $gratar_link . ‘” />’;$ gratar _ link = ‘ http://www . gratar . com/atar/’。md5($comment_author_email)。？s = 32’；回声’ & ltimg src= ” “。$gratar_link。”/>；；

第七，用cURL获得RSS订阅。

$ ch = curl _ init()；curl_setopt($ch，CURLOPT_URL，’ https://feedburner . Google . com/API/awareness/1.0/GetFeedData？id = 7 qkrmib 4 r 9 rscbplq 5 qgadiiq 4’)；curl_setopt($ch，CURLOPT_RETURNTRANSFER，1)；curl_setopt($ch，CURLOPT_CONNECTTIMEOUT，2)；$ content = curl _ exec($ ch)；$ subscribers = get _ match(‘/circulation = “(。*)”/isU ‘，$ content)；curl _ close($ ch)；八、时差计算功能前($ TERM) {

$periods = array(“秒”、”分”、”小时”、”日”、”周”、”月”、”年”、”十年”)；$lengths = array(“60 “，” 60 “，” 24 “，” 7 “，” 4.35 “，” 12 “，” 10 “)；$ now = time()；$ difference = $ now-$ time；$ tense = ” agofor($ j = 0；$ difference & gt= $ lengths[$ j]& amp；& amp$ j & lt计数(长度)-1；$ j++){ $ difference/= $ lengths[$ j]；} $ difference = round($ difference)；如果($差！= 1) { $periods[$j]。= ” s}返回“$ difference $ periods[$ j]’ ago ‘”；}

八、截取图片

$ filename = ” test.jpglist($w，$h，$type，$ attr)= getimagesize($ filename)；$ src _ im = imagecreatefromjpeg($ filename)；$ src _ x = ‘ 0//begin x $ src _ y = ‘ 0 ‘；//begin y $ src _ w = ‘ 100 ‘；//width $ src _ h = ‘ 100 ‘；//height $ dst _ x = ‘ 0 ‘；//destination x $ dst _ y = ‘ 0 ‘；//destination y $ dst _ im = imagecreatetruecolor($ src _ w，$ src _ h)；$ white = imagecolorlallocate($ dst _ im，255，255，255)；imagefill($dst_im，0，0，$ white)；imagecopy($dst_im，$src_im，$dst_x，$dst_y，$src_x，$src_y，$src_w，$ src _ h)；头(” Content-type:image/png “)；imagepng($ dst _ im)；image destroy($ dst _ im)；

九、检查网站是否宕机。

功能访问($url){

$agent = “Mozilla/4.0(兼容；MSIE 5.01windows NT 5.0)”；$ ch = curl _ init()；curl_setopt ($ch，CURLOPT_URL，$ URL)；curl_setopt($ch，CURLOPT_USERAGENT，$ agent)；curl_setopt ($ch，CURLOPT_RETURNTRANSFER，1)；curl_setopt ($ch，CURLOPT_VERBOSE，false)；curl_setopt($ch，CURLOPT_TIMEOUT，5)；curl_setopt($ch，CURLOPT_SSL_VERIFYPEER，FALSE)；curl_setopt($ch，CURLOPT_SSLVERSION，3)；curl_setopt($ch，CURLOPT_SSL_VERIFYHOST，FALSE)；$ page = curl _ exec($ ch)；//echo curl _ error($ ch)；$httpcode = curl_getinfo($ch，curl info _ HTTP _ CODE)；curl _ close($ ch)；if(＄httpcode & gt；= 200 & amp& amp$ httpcode & lt300)返回true否则返回false} if(访问(” http://www.google.com”)) echo“网站OK”。”n”；else echo“网站宕机”；