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PHP生成随机中文字符串

PHP中文网Original: 2016-05-24 09:12:031470browse

<?php
function unicode_decode($name) {
     
    // 转换编码，将Unicode编码转换成可以浏览的utf-8编码
    $pattern = &#39;/([\w]+)|(\\\u([\w]{4}))/i&#39;;
    preg_match_all($pattern, $name, $matches);
    if (!empty($matches)) {
        $name = &#39;&#39;;
        for ($j = 0; $j < count($matches[0]); $j++) {
            $str = $matches[0][$j];
            if (strpos($str, &#39;\\u&#39;) === 0) {
                $code = base_convert(substr($str, 2, 2), 16, 10);
                $code2 = base_convert(substr($str, 4), 16, 10);
                $c = chr($code) . chr($code2);
                $c = iconv(&#39;UCS-2&#39;, &#39;UTF-8&#39;, $c);
                $name.= $c;
            } else {
                $name.= $str;
            }
        }
    }
    return $name;
}
if ($_SERVER[&#39;REQUEST_METHOD&#39;] == &#39;POST&#39;) {
} else {
    $str = "";
    for ($i = 0; $i < 100; $i++) {
        $str.= "\\u" . dechex(rand(19968, 40895));
    }
    $content.= unicode_decode($str);
}
?>
<!DOCTYPE>
<html>
    <head>
        <title>blog</title>
    </head>
    <body>
        <span><?php
echo $_COOKIE["uid"] ?></span>
        <form action="<?php
htmlspecialchars($_SERVER[&#39;PHP_SELF&#39;]) ?>" method="post" accept-charset="utf-8">
            <input type="text" name="title">
            <br>
            <textarea name="content" id="" cols="30" rows="10"><?php
echo $content; ?></textarea>
            <br>
            <input type="submit" name=&#39;submit&#39;>
        </form>
    </body>
</html>

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