PHP正则匹配中文字母数字正则表达式

if(preg_match("/^d*$/",   "4312"))
{
echo   "全数字
";
}

if(preg_match("/^[a-z]*$/i",   "fdsFDfd"))
{
echo   "全字母
";
}

if(preg_match("/^[a-zd]*$/i",   "fd4fd34"))
{
echo   "有数字有字母
";
}

$username=$_REQUEST['username'];
if(!preg_match("/^[a-z0-9xa1-xff]{3,10}$/",$username))
 {
  echo"34r345";
  exit;
 }

$input_tag = $_POST['tag'];
$input_tag = explode(',', $input_tag);
$input_tag = array_unique($input_tag);
$input_tag = array_diff($input_tag, array(null));
$leng      = '';
$true      = '';
$comma     = '';
 
foreach ($input_tag as $v) {
    if (strlen($v) > 18) {
        $leng  .= $comma . $v;
        $comma = ',';
    }
 
    $true .= $comma . $v;
    $comma = ',';
}
 
$true = str_replace(',', '', $true);
if (!preg_match('/^[x80-xff_a-zA-Z0-9]+$/', $true)) {
    echo "<script>alert('不允许特殊符号的！！！');</script>";
    exit;
}
 
if (!empty($leng)) {
    echo "<script>alert('一个标签只能是6个汉字以内哦！！！');</script>";
    exit;
}

....
$ch = curl_init();
curl_setopt($ch, CURLOPT_HTTPHEADER, $header); //设置http头
curl_setopt($ch, CURLOPT_ENCODING, "gzip" ); //设置为客户端支持gzip压缩
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30 ); //设置连接等待时间
curl_setopt($ch, CURLOPT_URL, $url );
curl_exec( $ch );
if ($error = curl_error($ch) ) {
//出错处理
return -1;
}
fclose($fp);

$curl_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); //获取http返回值
if( $curl_code == 200 ) {
//正常访问url
}
//异常
....

curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_NOBODY, 1);

curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_NOBODY, 1);

curl_setopt($ch, CURLOPT_HEADER, 0); // make sure we get the body
curl_setopt($ch, CURLOPT_NOBODY, 0);

curl_setopt($ch, CURLOPT_HEADER, 0); // make sure we get the body
curl_setopt($ch, CURLOPT_NOBODY, 0);

<?
session_start();
$url = 'http://localhost/test/loginAct.php';
$post = 1;
$returntransfer = 1;
$port = 80;
$header = 0;
$nobody = 0;
$followlocation = 1;
$cookie_jar = $_SESSION['cookie_jar'];
$request = 'userName=huyan&pwd='.sha1(yanyan).'&ac=login';
$ch = curl_init();
$options = array(CURLOPT_URL => $url,
                    CURLOPT_HEADER => $header,
                    CURLOPT_NOBODY => $nobody,
                    CURLOPT_PORT => $port,
                    CURLOPT_POST => $post,
                    CURLOPT_POSTFIELDS => $request,
                    CURLOPT_RETURNTRANSFER => $returntransfer,
                    CURLOPT_FOLLOWLOCATION => $followlocation,
                    CURLOPT_COOKIEJAR => $cookie_jar,
                    CURLOPT_COOKIEFILE => $cookie_jar,
                    CURLOPT_REFERER => $url
                    );
curl_setopt_array($ch, $options);
$temp = curl_exec($ch);
curl_errno($ch);
curl_close($ch);
echo $temp;
?>

<?php
echo(mt_rand());
echo(mt_rand());
echo(mt_rand(10,100));
?>

输出类似：

3150906288
513289678
35

function generate_password( $length = 8 ) {
// 密码字符集，可任意添加你需要的字符
$chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()-_ []{}<>~`+=,.;:/?|';

$password = '';
for ( $i = 0; $i < $length; $i++ )
{
// 这里提供两种字符获取方式
// 第一种是使用 substr 截取$chars中的任意一位字符；
// 第二种是取字符数组 $chars 的任意元素
// $password .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
$password .= $chars[ mt_rand(0, strlen($chars) - 1) ];
}
return $password;
}

function get_password( $length = 8 )
{
    $str = substr(md5(time()), 0, 6);
    return $str;
}

<?php

/**

 * 返回数组的维度

 * @param  [type] $arr [description]

 * @return [type]      [description]

 */

function arrayLevel($arr){

    $al = array(0);

    function aL($arr,&$al,$level=0){

        if(is_array($arr)){

            $level++;

            $al[] = $level;

            foreach($arr as $v){

                aL($v,$al,$level);

            }

        }

    }

    aL($arr,$al);

    return max($al);

}

?>

function getmaxdim($vDim)
        {
                if(!is_array($vDim)) return 0;
                else
                {
                        $max1 = 0;
                        foreach($vDim as $item1)
                        {
                            $t1 = $this->getmaxdim($item1);
                            if( $t1 > $max1) $max1 = $t1;
                        }
                        return $max1 + 1;
                }
        }

验证过可以使用.

//测试
$arr=array('yiyi'=>1212,'haha'=>array('heihei'=>array(array("a")),"b"));
echo getmaxdim($arr);
//结果
4

/* Authentication type and info */
$cfg['Servers'][$i]['auth_type'] = ‘config’;
$cfg['Servers'][$i]['user'] = ‘root’;
$cfg['Servers'][$i]['password'] = ”;
$cfg['Servers'][$i]['port'] = ’3307′;
$cfg['Servers'][$i]['extension'] = ‘mysql’;
$cfg['Servers'][$i]['AllowNoPassword'] = true;
$cfg['Lang'] = ”;