PHP_PHP チュートリアルで乱数を取得した経験

関数:

ランダムな文字列を取得

乱数を取得するためのPHPパラメータ:

1, (int)$length = 32 #ランダムな文字の長さ
2, (int)$モード = 0 #ランダムな文字タイプ、0 は大文字と小文字、数字、1 は数字、2 は小文字、3 は大文字、4 は大文字と小文字、5 は大文字と数字、6 は小文字、数値

PHP は乱数定義クラスコードを取得します

<ol class="dp-xml"><li class="alt"><span><span class="tag"><</span><span> ?php   </span></span></li><li><span>class getRandstrClass   </span></li><li class="alt"><span>{   </span></li><li><span>function getCode ($</span><span class="attribute">length</span><span> = </span><span class="attribute-value">32</span><span>, $</span><span class="attribute">mode</span><span> = </span><span class="attribute-value">0</span><span>)   </span></li><li class="alt"><span>{   </span></li><li><span>switch ($mode) {   </span></li><li class="alt"><span>case '1':   </span></li><li><span>$</span><span class="attribute">str</span><span> = </span><span class="attribute-value">'1234567890'</span><span>;   </span></li><li class="alt"><span>break;   </span></li><li><span>case '2':   </span></li><li class="alt"><span>$</span><span class="attribute">str</span><span> = </span><span class="attribute-value">'abcdefghijklmnopqrstuvwxyz'</span><span>;   </span></li><li><span>break;   </span></li><li class="alt"><span>case '3':   </span></li><li><span>$</span><span class="attribute">str</span><span> = </span><span class="attribute-value">'ABCDEFGHIJKLMNOPQRSTUVWXYZ'</span><span>;   </span></li><li class="alt"><span>break;   </span></li><li><span>case '4':   </span></li><li class="alt"><span>$</span><span class="attribute">str</span><span> = </span><span class="attribute-value">'ABCDEFGHIJKLMNOPQRSTUVWXYZa<br />bcdefghijklmnopqrstuvwxyz'</span><span>;break;   </span></li><li><span>case '5':   </span></li><li class="alt"><span>$</span><span class="attribute">str</span><span> = </span><span class="attribute-value">'ABCDEFGHIJKLMNOPQRSTUVWXY<br />Z1234567890'</span><span>;   </span></li><li><span>break;   </span></li><li class="alt"><span>case '6':   </span></li><li><span>$</span><span class="attribute">str</span><span> = </span><span class="attribute-value">'abcdefghijklmnopqrstuvwxyz<br />1234567890'</span><span>;   </span></li><li class="alt"><span>break;   </span></li><li><span>default:   </span></li><li class="alt"><span>$</span><span class="attribute">str</span><span> = </span><span class="attribute-value">'ABCDEFGHIJKLMNOPQRSTUVWXYZa<br />bcdefghijklmnopqrstuvwxyz1234567890'</span><span>;   </span></li><li><span>break;   </span></li><li class="alt"><span>}   </span></li><li><span>$</span><span class="attribute">randString</span><span> = </span><span class="attribute-value">''</span><span>;   </span></li><li class="alt"><span>$</span><span class="attribute">len</span><span> = </span><span class="attribute-value">strlen</span><span>($str)-1;   </span></li><li><span>for($</span><span class="attribute">i</span><span> = </span><span class="attribute-value">0</span><span>;$i </span><span class="tag"><</span><span> $length;$i ++){   </span></li><li class="alt"><span>$</span><span class="attribute">num</span><span> = </span><span class="attribute-value">mt_rand</span><span>(0, $len);   </span></li><li><span>$randString </span><span class="attribute">.</span><span>= $str[$num];   </span></li><li class="alt"><span>}   </span></li><li><span>return $randString ;   </span></li><li class="alt"><span>}   </span></li><li><span>}   </span></li><li class="alt"><span class="tag">?></span><span>  </span></span></li></ol>

PHP は乱数の使用手順を取得します:

1. 上記のコードをrandom.phpとして保存します
2. 必要なページにrandom.phpを導入します

<ol class="dp-xml"><li class="alt"><span><span class="tag"><</span><span> ?php   </span></span></li><li><span>require_once('random.php');   </span></li><li class="alt"><span class="tag">?></span><span>  </span></span></li></ol>

3. 先ほど定義したクラス

<ol class="dp-xml">
<li class="alt"><span><span class="tag"><</span><span> ?php   </span></span></li><li><span>$</span><span class="attribute">code</span><span> = </span><span class="attribute-value">new</span><span> getRandstrClass();   </span></li><li class="alt"><span>$</span><span class="attribute">length</span><span> = </span><span class="attribute-value">32</span><span>;   </span></li><li><span>$</span><span class="attribute">mode</span><span> = </span><span class="attribute-value">0</span><span>;   </span></li><li class="alt"><span>$</span><span class="attribute">str</span><span> = $code-</span><span class="tag">></span><span>getCode($length, $mode);   </span></span></li>
<li><span>echo $str;   </span></li>
<li class="alt">
<span class="tag">?></span><span>   </span>
</li>
</ol>

を使用します。 以上がPHPで乱数を取得するための応用メソッドです。

http://www.bkjia.com/PHPjc/446045.htmlwww.bkjia.comtru​​ehttp://www.bkjia.com/PHPjc/446045.html技術記事関数: ランダムな文字列を取得して乱数を取得するための PHP パラメーター: 1. (int)$length = 32 #ランダムな文字の長さ 2. (int)$mode = 0 #ランダムな文字の種類、0 は大文字と小文字の英語と数字、1 は数字...