php 数字-字母和数字混合正则验证表达式_php

代码如下	复制代码
$str = '1-8732dsef83dfrese8732DEef83dfrESe';

//有朋友这样写的

代码如下	复制代码
var_dump(preg_match('/[0-9]+-[a-zA-Z0-9]{32}/',$str));

//可能存在的问题

代码如下	复制代码
$str= 'www1-8732dsef83dfrese8fdsfds3dfrESe-wfds111cn.netee'; $str = 'wwwfsdgwww.111cn.netwww1-873dfsfds32DEef83dfrESe-weeee'; //这两种形式的都会认为是匹配的。 //所以你应该修改成 var_dump(preg_match('/^[0-9]+-[a-zA-Z0-9]{32}$/',$str));

//正确的方法是

代码如下	复制代码
var_dump(preg_match('/^[0-9]+-[a-zA-Z0-9]{32}$/',$str));

//看看其它的方法正则表达式（汉字，字母，数字混合验证）
/*
首位汉字，
2-4位为字母，
第5位汉字，
6-14位为数字，
最后一位为汉字

代码如下

复制代码

[u4e00-u9fa5]{1}[a-za-z]{2,4}[u4e00-u9fa5]{5}[0-9]{6,14}[u4e00-u9fa5]{1}

^[u4e00-u9fa5uf900-ufa2d][a-za-z]{3}[u4e00-u9fa5uf900-ufa2d]d{9}[u4e00-u9fa5uf900-ufa2d]$

/*
我设置登录名和密码和会话变量，如...如果他们不从被保存到下一个页面，一个会话状态变量对大家都没好处，将它..因为它会返回“假“并重定向到登录页面？
*/

代码如下

复制代码

ob_clean();
ob_start();
//////////// SET COOKIE DIRECTORY
if (isset($_SERVER['HTTP_HOST'])) {
    if(strpos($_SERVER['HTTP_HOST'], ':') != -1){
   $domain = substr($_SERVER['HTTP_HOST'], 0, strpos($_SERVER['HTTP_HOST'], ':'));
    }
    else{
   $domain = $_SERVER['HTTP_HOST'];
    }
    $domain = preg_replace('`^www.`', '', $domain);
// Per RFC 2109, cookie domains must contain at least one dot other than the
// first. For hosts such as 'localhost', we don't set a cookie domain.
if (count(explode('.', $domain)) > 2) {
ini_set('session.cookie_domain', $domain);
}
}
//////////// END SET COOKIE DIRECTORY
//Start session
session_start();

//Include database connection details
require_once('config.php');

/////////////ERROR REPORTING . . . COMMENT OUT WHEN GOING LIVE! /////////////////////////////////
//echo ini_get('display_errors');
//if (!ini_get('display_errors')) {
//    ini_set('display_errors', 1);
//}
//echo ini_get('display_errors');
///////////// END OF ERROR REPORTING /////////////////////////////////

     //Domain Info used to header redirects
     $host = $_SERVER['HTTP_HOST'];
     $uri   = rtrim(dirname($_SERVER['PHP_SELF']), '/\');

//Array to store validation errors
$errmsg_arr = array();

//Validation error flag
$errflag = false;

//Connect to mysql教程 server
$link = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD);
if(!$link) {
die('Failed to connect to server: ' . mysql_error());
}

//Select database
$db = mysql_select_db(DB_DATABASE);
if(!$db) {
die("Unable to select database");
}

//Function to sanitize values received from the form. Prevents SQL injection
function clean($str) {
$str = @trim($str);
if(get_magic_quotes_gpc()) {
   $str = strips教程lashes($str);
}
return mysql_real_escape_string($str);
}

//Sanitize the POST values
$login = clean($_POST['login']);
$password = clean($_POST['password']);

//Input Validations
if($login == '') {
$errmsg_arr[] = 'Login ID missing';
$errflag = true;
}
if($password == '') {
$errmsg_arr[] = 'Password missing';
$errflag = true;
}

//If there are input validations, redirect back to the login form
if($errflag) {
$_SESSION['ERRMSG_ARR'] = $errmsg_arr;
session_write_close();

echo "<meta http-equiv=Refresh content=1;url='login-form.php'>";
//$extra1 = 'login-form.php';
//header("Location: http://$host$uri/$extra1");
exit;
}

//Create query
$qry="SELECT * FROM members WHERE login='$login' AND passwd='".md5($password)."'";
$result=mysql_query($qry);

//Check whether the query was successful or not
if($result) {
if(mysql_num_rows($result) == 1) {
   //Login Successful

///////////////////////////////////////////////    THIS LINE APPEARS TO CAUSE IE7 SOME PROBLEMS!!!!!!! //////////////////////////////////////////
//   session_regenerate_id (TRUE);
///////////////////////////////////////////////    THIS LINE APPEARS TO CAUSE IE7 SOME PROBLEMS!!!!!!! //////////////////////////////////////////
   $member = mysql_fetch_assoc($result);
   $_SESSION['SESS_MEMBER_ID'] = $member['member_id'];
   $_SESSION['SESS_FIRST_NAME'] = $member['firstname'];
   $_SESSION['SESS_LAST_NAME'] = $member['lastname'];
   $_SESSION['SESS_ADDRESS'] = $member['address'];
   $_SESSION['SESS_CITY'] = $member['city'];
   $_SESSION['SESS_STATE'] = $member['state'];
   $_SESSION['SESS_LOGIN'] = $member['login'];
   $_SESSION['SESS_CAPTAIN'] = $member['captain'];
   $_SESSION['SESS_TEAM'] = $member['team_name'];
   $_SESSION['SESS_MANUAL_TEAM'] = $member['manual_team'];

   session_write_close();

//echo "<meta http-equiv=Refresh content=1;url='member-index.php'>";

$extra2 = 'member-index.php';
header("Location: http://$host$uri/$extra2");
exit;

}else {
   //Login failed

//echo "<meta http-equiv=Refresh content=1;url='login-failed.php'>";

$extra3 = 'login-failed.php';
header("Location: http://$host$uri/$extra3");
exit;
}
}else {
die("Query failed");
}

//方法二

代码如下

复制代码

if (isset($_SERVER['HTTP_HOST'])) {
    if(strpos($_SERVER['HTTP_HOST'], ':') != -1){
   $domain = substr($_SERVER['HTTP_HOST'], 0, strpos($_SERVER['HTTP_HOST'], ':'));
    }
    else{
   $domain = $_SERVER['HTTP_HOST'];
    }
    $domain = preg_replace('`^www.`', '', $domain);
// Per RFC 2109, cookie domains must contain at least one dot other than the
// first. For hosts such as 'localhost', we don't set a cookie domain.
if (count(explode('.', $domain)) > 2) {
ini_set('session.cookie_domain', $domain);
}
}

$time = time();
$days = 86400*30;
$sql = "select * from test where $time-updated<$days order by click_num desc limit 10 ";
$db ='daydb';
$query = mysql_db_query($db,$sql,mysql_connect('localhost','root','root'));
if( $query )
{
while( $rs = mysql_fetch_array( $query ) )
{
echo $rs['id'],$rs['title'];
}
}
else
{
echo 'query失败';
}

//实例二查询一年点击排行代码
$days = 86400*365; //这里要讲86400代表一天。
$sql = "select * from test where $time-updated<$days order by click_num desc limit 10 ";
/*
time() 这个函数是获取当前服务器时间的时间截
mysql_db_query sql查询执行直接带数据库教程
mysql_connect 数据库连接
mysql_fetch_array 把当前记录保存到一个数组里
本站原创教程转载注明来源http://www.111cn.net/phper/php.html
*/

/*
语法:
setcookie(name,value,expire,path,domain,secure)
name,cookie名称必填
value, cookie值，必写

其它的可写，不过来说明一来功能
expire 过期时间如: time()+3600*24
path 路径如:/根目录，也可以指定二级目录如 /111cn.net/
domain 域名，这个就是做了二级域名是要注明了，如果我你让所有二级域都可以访问这个cookie的话就如这样设置:".111cn.net" 那么，s.111cn.net,down.111cn.net等都可以访问这个cookie哦。
secure 一般为1

下面来看个cookie实例，
*/
$value='www.111cn.net';
setcookie('loadDomain',$value,time()+3600*24,'/','.111cn.net'); //设置cookis

//下面读取cookie的值,在php中用$_COOKIE带cookie的名称就OK了。如下。
if( isset($_COOKIE['loadDomain'] ) )
{
$cookis = $_COOKIE['loadDomain'];
header("location:$cookis");
}

//本站原创教程转载注明来源www.111cn.net

//第一个：
function   &strAppOne()   {
	static   $v   =   0;
	$v++;
	echo   $v.nl2br("
");
	return   $v;
}
strAppOne();
$b   =&   strAppOne();
$b   +=   10;
strAppOne();
print_r($b);

/**输出:
*1

*2

*13

*/

//第二个：
function   &strAppTwo()   {
	static   $v   =   0;
	$v++;
	echo   $v.nl2br("
");  
	return   $v;  
}  
strAppTwo();  
$b   =   strAppTwo();  
$b   +=   10;  
strAppTwo();
print_r($b);

/**输出:
*1

*2

*3

*12

*/

//第三个：
function   strAppThree()   {
	static   $v   =   0;
	$v++;
	echo   $v.nl2br("
");
	return   $v;
}
strAppThree();
$b   =&   strAppThree();
$b   +=   10;
strAppThree();
print_r($b);

/**输出:
*1

*2

*3

*12

*/

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