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/**
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* 生成指定長度的隨機數字
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* <a href="http://my.oschina.net/arthor" target="_blank" rel="nofollow">@author</a> yangyingjie
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* @param $number
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* <a href="http://my.oschina.net/u/556800" target="_blank" rel="nofollow">@return</a> string
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*/
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function createRandNumberBySize($number)
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{
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$number = (int)$number;
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if ($number === 0) {
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return '';
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} else {
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$rankNumberString = "";
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for ($i = 0; $i < $number + 1; $i++) {
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if ($i !== 0 && $i % 2 === 0) {
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$rankNumberString .= mt_rand(11, 99);
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}
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}
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if ($number % 2 === 0) {
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return $rankNumberString;
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} else {
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return $rankNumberString . mt_rand(1, 9);
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}
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}
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}
作者:楊哥哥