Question

我想生成该数组的所有代码组合

"2", "3", "4", "6", "7", "8", "9", "Q", "W", "R", "T", "Y", "P", "D", "F", "G", "H", "J", "K", "X", "C", "V", "B", "M"

有效代码必须有25个符号，并且有5个段由＆＃34组成; - ＆＃34;

例如

34267-89QWR-TYPDF-GHJKX-CVBMG

43267-89QWR-TYPDF-GHJKX-CVBMG

生成每个组合脚本后必须instert到表那个代码。我尝试使用它，但它只生成该数组的所有组合，但不生成25个符号的代码。请帮帮我

<?php

require 'config.php';

function pc_permute($items, $perms = array()) {
    if (empty($items)) { 
        $result = join('', $perms);

        mysql_query("INSERT INTO gen (code) VALUES ('$result');") or die ('Wystąpił błąd w zapytaniu lub kod nie zostal dodany.');

    } else {
        for ($i = count($items) - 1; $i >= 0; --$i) {
             $newitems = $items;
             $newperms = $perms;
             list($foo) = array_splice($newitems, $i, 1);
             array_unshift($newperms, $foo);
             pc_permute($newitems, $newperms);
         }
    }
}

$arr = array("2", "3", "4", "6", "7", "8", "9", "Q", "W", "R", "T", "Y", "P", "D", "F", "G", "H", "J", "K", "X", "C", "V", "B", "M");

pc_permute($arr);

?>

如果你能帮助我，我会很开心。

PS。请添加声明在一个sement中不能是相同的simbols

例如：

AAAAB-AAAAB-AAAAB-AAAAB-AAAAB 良好的组合

AAAAA-AAAAA-AAAAA-AAAAA-AAAAA 坏组合

AAAAA-AAAAB-AAAAB-AAAAB-AAAAB BAD COMBINATION

Answer 1

function generateId($arr, $max) { //$max sets the amount of characters you want it to be
    $results = '';
    for($i = 0;$i < $max;$i++) {
        if($i % 5 == 0 && $i > 0) { //appends '-' every 5 characters
            $results .= '-';
        }
        $rand = rand(0, (count($arr) - 1));
        $results .= $arr[$rand];
    }
    if(preg_match('/(.)\\1{4}/', $results)) return generateId($arr, $max); //checks if 5 characters repeat
    else return $results;
}

$id = generateId($arr, 25); //pass your array of characters as argument

建议在MySQL中生成和分割记录

1 个答案: