{"id":21651,"date":"2022-11-14T15:36:01","date_gmt":"2022-11-14T10:06:01","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-generate-random-number-of-6-digit-length-with-at-least-n-unique-digits-in-php\/"},"modified":"2022-11-14T15:36:01","modified_gmt":"2022-11-14T10:06:01","slug":"solved-generate-random-number-of-6-digit-length-with-at-least-n-unique-digits-in-php","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-generate-random-number-of-6-digit-length-with-at-least-n-unique-digits-in-php\/","title":{"rendered":"[Solved] Generate random number of 6 digit length with at-least n unique digits in php"},"content":{"rendered":"

[ad_1]
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Asker Comment: 4 unique and 2 repetitive digits. But they should also have 3 unique
\n and 3 repetitive digits, 2 unique and 4 repetitive digits in random
\n number.<\/p>\n<\/blockquote>\n

Ok, I think I finally<\/em> understand, so I have tweaked the algorithm to match every possible rule<\/strong> you’re expecting from 0 to 6 unique, though as you will see ive not changed much to my original answers code<\/em>. Ive even added a sort flag so as to sort the int’s incase that is also a requirement. Im determined!! <\/p>\n

<?php\n\/\/\nfunction random_number_with_dupe($len = 6, $dup = 1, $sort = false) {\n    if ($dup < 1) {\n        throw new InvalidArgumentException('Second argument is < 1');\n    }        \n\n    $num = range(0,9);\n    shuffle($num);\n\n    $num = array_slice($num, 0, ($len-$dup)+1);\n\n    if ($dup > 0) {\n        $k = array_rand($num, 1);\n        for ($i=0; $i<($dup-1); $i++) {\n            $num[] = $num[$k];\n        }\n    }\n\n    if ($sort) {\n        sort($num);\n    }\n\n    return implode('', $num);\n}\n<\/code><\/pre>\n
All unique.<\/strong><\/p>\n
for ($i=0; $i<5; $i++) {\n    echo random_number_with_dupe(6, 1, true).PHP_EOL;\n}\n\/*\n124579\n123679\n013568\n015789\n013578\n*\/\n<\/code><\/pre>\n
4 unique and 2 repetitive digits.<\/strong><\/p>\n
for ($i=0; $i<5; $i++) {\n    echo random_number_with_dupe(6, 2, true).PHP_EOL;\n}\n\/*\n235699\n037789\n034677\n012249\n033569\n*\/\n<\/code><\/pre>\n
3 unique and 3 repetitive digits.<\/strong><\/p>\n
for ($i=0; $i<5; $i++) {\n    echo random_number_with_dupe(6, 3, true).PHP_EOL;\n}\n\/*\n015559\n011147\n111239\n677789\n456777\n*\/\n<\/code><\/pre>\n
2 unique and 4 repetitive digits.<\/strong><\/p>\n
for ($i=0; $i<5; $i++) {\n    echo random_number_with_dupe(6, 4, true).PHP_EOL;\n}\n\/*\n068888\n022229\n018888\n333378\n000058\n*\/\n<\/code><\/pre>\n
1 unique and 5 repetitive digits.<\/strong><\/p>\n
for ($i=0; $i<5; $i++) {\n    echo random_number_with_dupe(6, 5, true).PHP_EOL;\n}\n\/*\n788888\n066666\n799999\n355555\n244444\n*\/\n<\/code><\/pre>\n
0 unique and 6 repetitive digits.<\/strong><\/p>\n
for ($i=0; $i<5; $i++) {\n    echo random_number_with_dupe(6, 6, true).PHP_EOL;\n}\n\/*\n888888\n333333\n777777\n888888\n777777\n*\/\n<\/code><\/pre>\n
All rules.<\/strong><\/p>\n
for ($i=0; $i<6; $i++) {\n    echo random_number_with_dupe(6, $i+1, true).PHP_EOL;\n}\n\/*\n345789\n003569\n245666\n000089\n777778\n555555\n*\/\n<\/code><\/pre>\n
All rules (random).<\/strong><\/p>\n
for ($i=0; $i<6; $i++) {\n    echo random_number_with_dupe(6, mt_rand(1, 6), true).PHP_EOL;\n}\n\/*\n225678\n222222\n111359\n444444\n777778\n233349\n*\/\n<\/code><\/pre>\n
Working example:<\/strong><\/p>\n
https:\/\/3v4l.org\/3OCkc<\/a><\/p>\n
Original<\/h2>\n
How about this, every number is unique. Use 0 to 9 for the entropy and then shuffle.<\/p>\n
<?php\nfunction random_number($len = 6) {\n    $num = range(0,9);\n    shuffle($num);\n    return implode('', array_slice($num, 0, $len));\n}\n\nfor ($i=0; $i<10; $i++) {\n    echo random_number(6).PHP_EOL;\n}\n<\/code><\/pre>\n
Result:<\/p>\n
357964\n365870\n392576\n285196\n278915\n712960\n751032\n517420\n943257\n380162\n<\/code><\/pre>\n
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Edit<\/strong> <\/p>\n
\n
Asker Comment: This I can do but the requirement is different. They need
\n  at-least 2 unique numbers. with 1 duplicate<\/strong>.<\/p>\n<\/blockquote>\n
<?php\nfunction random_number_with_1_dupe($len = 6) {\n    $num = range(0,9);\n    shuffle($num);\n\n    $num = array_slice($num, 0, $len-1);\n\n    $dup = array_rand($num, 1);\n    $num[] = $num[$dup];\n\n    return implode('', $num);\n}\n\nfor ($i=0; $i<10; $i++) {\n    echo random_number_with_1_dupe(6).PHP_EOL;\n}\n\n564795\n698756\n937414\n760897\n706383\n784626\n520166\n614055\n798057\n295809\n<\/code><\/pre>\n
Edit v4.0<\/strong><\/p>\n
\n
I need a random number without these two rules : 1 unique and 5
\n  repetitive digits. 0 unique and 6 repetitive digits. Rules applicable
\n  : All unique. 4 unique and 2 repetitive digits. 3 unique and 3
\n  repetitive digits. 2 unique and 4 repetitive digits.<\/p>\n<\/blockquote>\n
The second argument is the rule<\/em>, so you would to do:<\/p>\n
echo random_number_with_dupe(6, mt_rand(1, 4), true).PHP_EOL;<\/code><\/p>\n
If you want something inbetween you would define a rules array and pick out a random one.<\/p>\n
$rules = [\n    1,3,5\n];\n\necho random_number_with_dupe(6, $rules[array_rand($rules)], true);\n<\/code><\/pre>\n<\/p><\/div>\n
<\/div>\n<\/div>\n
            12<\/span> <\/p><\/div>\n<\/div>\n
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solved Generate random number of 6 digit length with at-least n unique digits in php <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] Asker Comment: 4 unique and 2 repetitive digits. But they should also have 3 unique and 3 repetitive digits, 2 unique and 4 repetitive digits in random number. Ok, I think I finally understand, so I have tweaked the algorithm to match every possible rule you’re expecting from 0 to 6 unique, though as … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[339],"class_list":["post-21651","post","type-post","status-publish","format-standard","hentry","category-solved","tag-php"],"yoast_head":"\n[Solved] Generate random number of 6 digit length with at-least n unique digits in php - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-generate-random-number-of-6-digit-length-with-at-least-n-unique-digits-in-php\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Generate random number of 6 digit length with at-least n unique digits in php - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Asker Comment: 4 unique and 2 repetitive digits. 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