PHP生成随机或者唯一字符串

来源：互联网发布：vb程序改错数字金字塔编辑：程序博客网时间：2024/06/06 18:04
本文出至：新太潮流网络博客
/** * [生成随机字符串] * @E-mial wuliqiang_aa@163.com * @TIME   2017-04-07 * @WEB    http://blog.iinu.com.cn * @param  integer $length [生成的长度] * @param  integer $type   [生成的类型] * @return [type]   str       [description] * @php 随机码类型：0，数字+大写字母；1，数字；2，小写字母；3，大写字母；4，特殊字符；-1，数字+大小写字母+特殊字符 */function randCode($length = 5, $type = 0) {    $arr = array(1 => "0123456789", 2 => "abcdefghijklmnopqrstuvwxyz", 3 => "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 4 => "~@#$%^&*(){}[]|");    if ($type == 0) {        array_pop($arr);        $string = implode("", $arr);    } else if ($type == "-1") {        $string = implode("", $arr);    } else {        $string = $arr[$type];    }    $count = strlen($string) - 1;    for ($i = 0; $i < $length; $i++) {        $str[$i] = $string[rand(0, $count)];        $code .= $str[$i];    }    return $code;}/** * [生成唯一字符串] * @E-mial wuliqiang_aa@163.com * @TIME   2017-04-07 * @WEB    http://blog.iinu.com.cn * @ 0-存数字字符串；1-小写字母字符串；2-大写字母字符串；3-大小写数字字符串；4-字符； *   5-数字，小写，大写，字符混合 * @param  integer $type   [字符串的类型] * @param  integer $length [字符串的长度] * @param  integer $time   [是否带时间1-带，0-不带] * @return [string]  $str    [返回唯一字符串] */function randSole($type = 0,$length = 18,$time=0){    $str = $time == 0 ? '':date('YmdHis',time());    switch ($type) {        case 0:            for((int)$i = 0;$i <= $length;$i++){                if(mb_strlen($str) == $length){                    $str = $str;                }else{                    $str .= rand(0,9);                }            }            break;        case 1:            for((int)$i = 0;$i <= $length;$i++){                if(mb_strlen($str) == $length){                    $str = $str;                }else{                    $rand = "qwertyuioplkjhgfdsazxcvbnm";                    $str .= $rand{mt_rand(0,26)};                }            }            break;        case 2:            for((int)$i = 0;$i <= $length;$i++){                if(mb_strlen($str) == $length){                    $str = $str;                }else{                    $rand = "QWERTYUIOPLKJHGFDSAZXCVBNM";                    $str .= $rand{mt_rand(0,26)};                }            }            break;        case 3:            for((int)$i = 0;$i <= $length;$i++){                if(mb_strlen($str) == $length){                    $str = $str;                }else{                    $rand = "123456789qwertyuioplkjhgfdsazxcvbnmQWERTYUIOPLKJHGFDSAZXCVBNM";                    $str .= $rand{mt_rand(0,35)};                }            }            break;        case 4:            for((int)$i = 0;$i <= $length;$i++){                if(mb_strlen($str) == $length){                    $str = $str;                }else{                    $rand = "!@#$%^&*()_+=-~`";                    $str .= $rand{mt_rand(0,17)};                }            }            break;        case 5:            for((int)$i = 0;$i <= $length;$i++){                if(mb_strlen($str) == $length){                    $str = $str;                }else{                    $rand = "123456789qwertyuioplkjhgfdsazxcvbnmQWERTYUIOPLKJHGFDSAZXCVBNM!@#$%^&*()_+=-~`";                    $str .= $rand{mt_rand(0,52)};                }            }            break;    }    return $str;}
本文出至：新太潮流网络博客
阅读全文
0 0