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PHP日常实用小Tips

2006-07-20 09:11:34  编辑来源:互联网  宽屏版  评论

本文为【PHP日常实用小Tips】的汉字拼音对照版显示拼音

fuwuqixueyuan1.jianyipanduanipdizhihefaxing

if(!strcmp(long2ip(sprintf("%u",ip2long($ip))),$ip)) echo "is ipn";

2.emaildezhengzepanduan

eregi("^[_.0-9a-zA-Z-]+@([0-9a-zA-Z][0-9a-zA-Z_-]+.)+[a-zA-Z]$", $email);

3.jianceipdizhihemaskshifouhefadelizi

$ip = '192.168.0.84';

$mask = '255.255.255.0';

$network = '192.168.0';

$ip = ip2long($ip);

$mask = ip2long($mask);

$network = ip2long($network);

if( ($ip & $mask) == $network) echo "valid ip and maskn";

?>

4.guanyubiaodanshuaxin

wenweishenmewozaidianjiliulanqidehou退tuianniuhousuoyouziduandexinxidoubeiqingkongle

dazheshiyouyunizainidebiaodantijiaoyemianzhong使shiyongle session_start hanshugaihanshuhuiqiangzhidangqianyemianbubeihuancunjiejuebanfaweizainide Session_start hanshuhoujiaru header("Cache-control: private"); zhuyizaibenxingzhiqiannidePHPchengxubunengyourenheshuchu

buchonghuanyoujiyusessiondejiejuefangfazaisession_startqianjiashang

session_cache_limiter('nocache');// qingkongbiaodan

session_cache_limiter('private'); //buqingkongbiaodanzhizaisessionshengxiaoqijian

session_cache_limiter('public'); //buqingkongbiaodanrutongmei使shiyongsessionyiban

keyizaisession_start();qianjiashangsession_cache_limiter("private,max-age=10800");

5.kuaisugaodingwenjianxiazaitoubushuchu

header("Content-type: application/x-download");

header("Content-Disposition: attachment; filename=$file_download_name;");

header("Accept-Ranges: bytes");

header("Content-Length: $download_size");

echo 'xxx'

6.yongheadershuchuftpxiazaifangshi,bingqiezhichiduandianxuchuan

yigelizi:

header('Pragma: public');

header('Cache-Control: private');

header('Cache-Control: no-cache, must-revalidate');

header('Accept-Ranges: bytes');

header('Connection: close');

header("Content-Type: audio/mpeg");

header("Location:ftp://download:1bk3l4s3k9s2@218.30.116.103/1001/kalilajiao/kalilajiao.rmvb");

7.zhengzepipeizhongwen

ereg("^[".chr(0xa1)."-".chr(0xff)."]+$", $str);

8.piliangtihuanwenbenlimiandechaojilianjie

function urlParse($str = '')

{

if ('' == $str) return $str;

$types = array("http", "ftp", "https");

$replace = << ''.htmlentities('1').htmlentities('2').''

EOPHP;

$ret = $str;

while(list(,$type) = each($types))

{

$ret = preg_replace("|($type://)([^s]*)|ie ", $replace, $ret);

}

return $ret;

}

?>

原文
【 服务器学院】1.简易判断ip地址合法性   if(!strcmp(long2ip(sprintf("%u",ip2long($ip))),$ip)) echo "is ipn";   2.email的正则判断   eregi("^[_.0-9a-zA-Z-]+@([0-9a-zA-Z][0-9a-zA-Z_-]+.)+[a-zA-Z]$", $email);   3.检测ip地址和mask是否合法的例子   $ip = '192.168.0.84';   $mask = '255.255.255.0';   $network = '192.168.0';   $ip = ip2long($ip);   $mask = ip2long($mask);   $network = ip2long($network);   if( ($ip & $mask) == $network) echo "valid ip and maskn";   ?>   4.关于表单刷新   问:为什么我在点击浏览器的后退按钮后,所有字段的信息都被清空了?   答:这是由于你在你的表单提交页面中使用了 session_start 函数。该函数会强制当前页面不被缓存。解决办法为,在你的 Session_start 函数后加入 header("Cache-control: private"); 注意在本行之前你的PHP程序不能有任何输出。   补充:还有基于session的解决方法,在session_start前加上   session_cache_limiter('nocache');// 清空表单   session_cache_limiter('private'); //不清空表单,只在session生效期间   session_cache_limiter('public'); //不清空表单,如同没使用session一般   可以在session_start();前加上session_cache_limiter("private,max-age=10800");   5.快速搞定文件下载头部输出   header("Content-type: application/x-download");   header("Content-Disposition: attachment; filename=$file_download_name;");   header("Accept-Ranges: bytes");   header("Content-Length: $download_size");   echo 'xxx'   6.用header输出ftp下载方式,并且支持断点续传   一个例子:   header('Pragma: public');   header('Cache-Control: private');   header('Cache-Control: no-cache, must-revalidate');   header('Accept-Ranges: bytes');   header('Connection: close');   header("Content-Type: audio/mpeg");   header("Location:ftp://download:1bk3l4s3k9s2@218.30.116.103/1001/咖哩辣椒/咖喱辣椒.rmvb");   7.正则匹配中文   ereg("^[".chr(0xa1)."-".chr(0xff)."]+$", $str);   8.批量替换文本里面的超级链接   function urlParse($str = '')   {    if ('' == $str) return $str;   $types = array("http", "ftp", "https");   $replace = << ''.htmlentities('1').htmlentities('2').''   EOPHP;   $ret = $str;   while(list(,$type) = each($types))   {    $ret = preg_replace("|($type://)([^s]*)|ie ", $replace, $ret);   }   return $ret;   }   ?>
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