{"id":2103,"date":"2014-03-25T15:06:03","date_gmt":"2014-03-25T07:06:03","guid":{"rendered":"http:\/\/www.huzs.top\/?p=2103"},"modified":"2014-03-25T15:09:10","modified_gmt":"2014-03-25T07:09:10","slug":"php%e7%94%9f%e6%88%90%e9%9a%8f%e6%9c%ba%e5%af%86%e7%a0%81%e7%9a%84%e5%87%a0%e7%a7%8d%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.huzs.top\/?p=2103","title":{"rendered":"php\u751f\u6210\u968f\u673a\u5bc6\u7801\u7684\u51e0\u79cd\u65b9\u6cd5"},"content":{"rendered":"

\u4f7f\u7528PHP\u5f00\u53d1\u5e94\u7528\u7a0b\u5e8f\uff0c\u5c24\u5176\u662f\u7f51\u7ad9\u7a0b\u5e8f\uff0c\u5e38\u5e38\u9700\u8981\u751f\u6210\u968f\u673a\u5bc6\u7801\uff0c\u5982\u7528\u6237\u6ce8\u518c\u751f\u6210\u968f\u673a\u5bc6\u7801\uff0c\u7528\u6237\u91cd\u7f6e\u5bc6\u7801\u4e5f\u9700\u8981\u751f\u6210\u4e00\u4e2a\u968f\u673a\u7684\u5bc6\u7801\u3002\u968f\u673a\u5bc6\u7801\u4e5f\u5c31\u662f\u4e00\u4e32\u56fa\u5b9a\u957f\u5ea6\u7684\u5b57\u7b26\u4e32\uff0c\u8fd9\u91cc\u6211\u6536\u96c6\u6574\u7406\u4e86\u51e0\u79cd\u751f\u6210\u968f\u673a\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\uff0c\u4ee5\u4f9b\u5927\u5bb6\u53c2\u8003\u3002
\u65b9\u6cd5\u4e00\uff1a<\/p>\n

1\u3001\u5728 33 \u2013 126 \u4e2d\u751f\u6210\u4e00\u4e2a\u968f\u673a\u6574\u6570\uff0c\u5982 35\uff0c
2\u3001\u5c06 35 \u8f6c\u6362\u6210\u5bf9\u5e94\u7684ASCII\u7801\u5b57\u7b26\uff0c\u5982 35 \u5bf9\u5e94 #
3\u3001\u91cd\u590d\u4ee5\u4e0a 1\u30012 \u6b65\u9aa4 n \u6b21\uff0c\u8fde\u63a5\u6210 n \u4f4d\u7684\u5bc6\u7801<\/p>\n

\u8be5\u7b97\u6cd5\u4e3b\u8981\u7528\u5230\u4e86\u4e24\u4e2a\u51fd\u6570\uff0cmt_rand ( int $min , int $max )\u51fd\u6570\u7528\u4e8e\u751f\u6210\u968f\u673a\u6574\u6570\uff0c\u5176\u4e2d $min \u2013 $max \u4e3a ASCII \u7801\u7684\u8303\u56f4\uff0c\u8fd9\u91cc\u53d6 33 -126 \uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u8c03\u6574\u8303\u56f4\uff0c\u5982ASCII\u7801\u8868\u4e2d 97 \u2013 122 \u4f4d\u5bf9\u5e94 a \u2013 z \u7684\u82f1\u6587\u5b57\u6bcd\uff0c\u5177\u4f53\u53ef\u53c2\u8003 ASCII\u7801\u8868\uff1b chr ( int $ascii )\u51fd\u6570\u7528\u4e8e\u5c06\u5bf9\u5e94\u6574\u6570 $ascii \u8f6c\u6362\u6210\u5bf9\u5e94\u7684\u5b57\u7b26\u3002<\/p>\n

    function create_password($pw_length = 8)
    {
        $randpwd = '';
        for ($i = 0; $i < $pw_length; $i++)
        {
            $randpwd .= chr(mt_rand(33, 126));
        }
        return $randpwd;
    }
    \/\/ \u8c03\u7528\u8be5\u51fd\u6570\uff0c\u4f20\u9012\u957f\u5ea6\u53c2\u6570$pw_length = 6
    echo create_password(6);<\/pre>\n
\u65b9\u6cd5\u4e8c\uff1a<\/p>\n
     1\u3001\u9884\u7f6e\u4e00\u4e2a\u7684\u5b57\u7b26\u4e32 $chars \uff0c\u5305\u62ec a \u2013 z\uff0cA \u2013 Z\uff0c0 \u2013 9\uff0c\u4ee5\u53ca\u4e00\u4e9b\u7279\u6b8a\u5b57\u7b26
     2\u3001\u5728 $chars \u5b57\u7b26\u4e32\u4e2d\u968f\u673a\u53d6\u4e00\u4e2a\u5b57\u7b26
     3\u3001\u91cd\u590d\u7b2c\u4e8c\u6b65 n \u6b21\uff0c\u53ef\u5f97\u957f\u5ea6\u4e3a n \u7684\u5bc6\u7801<\/p>\n
    function generate_password( $length = 8 ) {
        \/\/ \u5bc6\u7801\u5b57\u7b26\u96c6\uff0c\u53ef\u4efb\u610f\u6dfb\u52a0\u4f60\u9700\u8981\u7684\u5b57\u7b26
        $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()-_ []{}<>~`+=,.;:\/?|';
        $password = '';
        for ( $i = 0; $i < $length; $i++ )
        {
            \/\/ \u8fd9\u91cc\u63d0\u4f9b\u4e24\u79cd\u5b57\u7b26\u83b7\u53d6\u65b9\u5f0f
            \/\/ \u7b2c\u4e00\u79cd\u662f\u4f7f\u7528 substr \u622a\u53d6$chars\u4e2d\u7684\u4efb\u610f\u4e00\u4f4d\u5b57\u7b26\uff1b
            \/\/ \u7b2c\u4e8c\u79cd\u662f\u53d6\u5b57\u7b26\u6570\u7ec4 $chars \u7684\u4efb\u610f\u5143\u7d20
            \/\/ $password .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
            $password .= $chars[ mt_rand(0, strlen($chars) - 1) ];
        }
        return $password;
    }<\/pre>\n
\u65b9\u6cd5\u4e09\uff1a<\/p>\n
     1\u3001\u9884\u7f6e\u4e00\u4e2a\u7684\u5b57\u7b26\u6570\u7ec4 $chars \uff0c\u5305\u62ec a \u2013 z\uff0cA \u2013 Z\uff0c0 \u2013 9\uff0c\u4ee5\u53ca\u4e00\u4e9b\u7279\u6b8a\u5b57\u7b26
     2\u3001\u901a\u8fc7array_rand()\u4ece\u6570\u7ec4 $chars \u4e2d\u968f\u673a\u9009\u51fa $length \u4e2a\u5143\u7d20
     3\u3001\u6839\u636e\u5df2\u83b7\u53d6\u7684\u952e\u540d\u6570\u7ec4 $keys\uff0c\u4ece\u6570\u7ec4 $chars \u53d6\u51fa\u5b57\u7b26\u62fc\u63a5\u5b57\u7b26\u4e32\u3002\u8be5\u65b9\u6cd5\u7684\u7f3a\u70b9\u662f\u76f8\u540c\u7684\u5b57\u7b26\u4e0d\u4f1a\u91cd\u590d\u53d6\u3002<\/p>\n
    function make_password( $length = 8 )
    {
        \/\/ \u5bc6\u7801\u5b57\u7b26\u96c6\uff0c\u53ef\u4efb\u610f\u6dfb\u52a0\u4f60\u9700\u8981\u7684\u5b57\u7b26
        $chars = array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
        'i', 'j', 'k', 'l','m', 'n', 'o', 'p', 'q', 'r', 's',
        't', 'u', 'v', 'w', 'x', 'y','z', 'A', 'B', 'C', 'D',
        'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L','M', 'N', 'O',
        'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y','Z',
        '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '!',
        '@','#', '$', '%', '^', '&', '*', '(', ')', '-', '_',
        '[', ']', '{', '}', '<', '>', '~', '`', '+', '=', ',',
        '.', ';', ':', '\/', '?', '|');
        \/\/ \u5728 $chars \u4e2d\u968f\u673a\u53d6 $length \u4e2a\u6570\u7ec4\u5143\u7d20\u952e\u540d
        $keys = array_rand($chars, $length);
        $password = '';
        for($i = 0; $i < $length; $i++)
        {
            \/\/ \u5c06 $length \u4e2a\u6570\u7ec4\u5143\u7d20\u8fde\u63a5\u6210\u5b57\u7b26\u4e32
            $password .= $chars[$keys[$i]];
        }
        return $password;
    }<\/pre>\n
\u65b9\u6cd5\u56db\uff1a<\/p>\n
\u672c\u65b9\u6cd5\u662f\u672c\u6587\u88ab\u84dd\u8272\u7406\u60f3\u8f6c\u8f7d\u540e\uff0c\u4e00\u540d\u7f51\u53cb\u63d0\u4f9b\u7684\u4e00\u4e2a\u65b0\u65b9\u6cd5\uff0c\u7b97\u6cd5\u7b80\u5355\uff0c\u4ee3\u7801\u7b80\u77ed\uff0c\u53ea\u662f\u56e0\u4e3amd5()\u51fd\u6570\u7684\u8fd4\u56de\u503c\u7684\u7f18\u6545\uff0c\u751f\u6210\u7684\u5bc6\u7801\u53ea\u5305\u62ec\u5b57\u6bcd\u548c\u6570\u5b57\uff0c\u4e0d\u8fc7\u4e5f\u7b97\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u65b9\u6cd5\u3002\u7b97\u6cd5\u601d\u60f3\uff1a
     1\u3001time() \u83b7\u53d6\u5f53\u524d\u7684 Unix \u65f6\u95f4\u6233
     2\u3001\u5c06\u7b2c\u4e00\u6b65\u83b7\u53d6\u7684\u65f6\u95f4\u6233\u8fdb\u884c md5() \u52a0\u5bc6
     3\u3001\u5c06\u7b2c\u4e8c\u6b65\u52a0\u5bc6\u7684\u7ed3\u679c\uff0c\u622a\u53d6 n \u4f4d\u5373\u5f97\u60f3\u8981\u7684\u5bc6\u7801<\/p>\n

    function get_password( $length = 8 )
    {
        $str = substr(md5(time()), 0, 6);
        return $str;
    }<\/pre>\n
\u65f6\u95f4\u6548\u7387\u5bf9\u6bd4<\/p>\n
     \u6211\u4eec\u4f7f\u7528\u4ee5\u4e0bPHP\u4ee3\u7801\uff0c\u8ba1\u7b97\u4e0a\u9762\u7684 4 \u4e2a\u968f\u673a\u5bc6\u7801\u751f\u6210\u51fd\u6570\u751f\u6210 6 \u4f4d\u5bc6\u7801\u7684\u8fd0\u884c\u65f6\u95f4\uff0c\u8fdb\u800c\u5bf9\u4ed6\u4eec\u7684\u65f6\u95f4\u6548\u7387\u8fdb\u884c\u4e00\u4e2a\u7b80\u5355\u7684\u5bf9\u6bd4\u3002<\/p>\n
        function getmicrotime()
    {
        list($usec, $sec) = explode(\" \",microtime());
        return ((float)$usec + (float)$sec);
    }
     
    \/\/ \u8bb0\u5f55\u5f00\u59cb\u65f6\u95f4
    $time_start = getmicrotime();
       
    \/\/ \u8fd9\u91cc\u653e\u8981\u6267\u884c\u7684PHP\u4ee3\u7801\uff0c\u5982:
    \/\/ echo create_password(6);
     
    \/\/ \u8bb0\u5f55\u7ed3\u675f\u65f6\u95f4
    $time_end = getmicrotime();
    $time = $time_end - $time_start;
     \/\/ \u8f93\u51fa\u8fd0\u884c\u603b\u65f6\u95f4
    echo \"\u6267\u884c\u65f6\u95f4 $time seconds\";
    ?><\/pre>\n
\u6700\u7ec8\u5f97\u51fa\u7684\u7ed3\u679c\u662f\uff1a
     \u65b9\u6cd5\u4e00\uff1a9.8943710327148E-5 \u79d2
     \u65b9\u6cd5\u4e8c\uff1a9.6797943115234E-5 \u79d2
     \u65b9\u6cd5\u4e09\uff1a0.00017499923706055 \u79d2
     \u65b9\u6cd5\u56db\uff1a3.4093856811523E-5 \u79d2<\/p>\n
     \u53ef\u4ee5\u770b\u51fa\u65b9\u6cd5\u4e00\u548c\u65b9\u6cd5\u4e8c\u7684\u6267\u884c\u65f6\u95f4\u90fd\u5dee\u4e0d\u591a\uff0c\u65b9\u6cd5\u56db\u8fd0\u884c\u65f6\u95f4\u6700\u77ed\uff0c\u800c\u65b9\u6cd5\u4e09\u7684\u8fd0\u884c\u65f6\u95f4\u7a0d\u5fae\u957f\u70b9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4f7f\u7528PHP\u5f00\u53d1\u5e94\u7528\u7a0b\u5e8f\uff0c\u5c24\u5176\u662f\u7f51\u7ad9\u7a0b\u5e8f\uff0c\u5e38\u5e38\u9700\u8981\u751f\u6210\u968f\u673a\u5bc6\u7801\uff0c\u5982\u7528\u6237\u6ce8\u518c\u751f\u6210\u968f\u673a\u5bc6\u7801\uff0c\u7528\u6237\u91cd\u7f6e\u5bc6\u7801\u4e5f\u9700\u8981\u751f\u6210\u4e00 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-2103","post","type-post","status-publish","format-standard","hentry","category-19"],"_links":{"self":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/posts\/2103","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2103"}],"version-history":[{"count":3,"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/posts\/2103\/revisions"}],"predecessor-version":[{"id":2106,"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/posts\/2103\/revisions\/2106"}],"wp:attachment":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}