note 86826 deleted from function.rand by thiago

From: Date: Fri, 06 Feb 2009 15:44:59 +0000
Subject: note 86826 deleted from function.rand by thiago
References: 1  Groups: php.notes 
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Note Submitter: shortschoolbus at live dot com ---- This is a function to generate numbers of any length which contain no identical characters side-by-side. i.e. 11aa22bb33 <?php function createRandom($number_of_digits=1,$type=3){ // type: 1 - numeric, 2 - letters, 3 - mixed. for($x=0;$x<$number_of_digits;$x++){ while(substr($num,strlen($num)-1,strlen($num)) == $r){ switch($type){ case "1": $r = rand(0,9); break; case "2": $r = chr(rand(0,25)+65); break; case "3": if(is_numeric(substr($num,strlen($num)-1,strlen($num)))){ $n = rand(0,999); if($n % 2){ $r = chr(rand(0,25)+65); } else { $r = strtolower(chr(rand(0,25)+65)); } } else { $r = rand(0,9); } break; } } $new_string .= $r; } return $new_string; } // Usage Examples Below - // $number = createRandom(10); // echo $number; // Output: 6Q1a8C1u9S // echo createRandom(10,1); // Output: 8754381046 // echo createRandom(10,2); // Output: dNAoQYOtud // echo createRandom(); // Output: 9 ?>

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