PHP随机生成英文字母

PHP随机生成英文字母

用处不多说，上代码，这里只要英文的话，把我加的域名去掉就好：

class GenRandWords {
	private static $_alphas = [
	        'a', 'b', 'c', 'd', 'e', 'f', 'g',
	        'h', 'i', 'j', 'k', 'l', 'm', 'n',
	        'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
	    ];
	// 生成
	private $_num = 1;
	// 单词最小长度
	private $_minLength = 3;
	// 单词最大长度
	private $_maxLength = 6;
	public function __construct($config = []) {
		if (isset($config['num']) && $config['num'] > 0) {
			$this->_num = $config['num'];
		}
		if (isset($config['minLength']) && $config['minLength'] > 0) {
			$this->_minLength = $config['minLength'];
		}
		if (isset($config['maxLength']) && $config['maxLength'] > 0) {
			$this->_maxLength = $config['maxLength'];
		}
	}
	public function generate() {
		$words = [];
		$num = $this->_num;
		while ($num--) {
			$words[] = $this->_genOneWord();
		}
		return $words;
	}
	private function _genOneWord() {
		$word = '';
		$wordLength = mt_rand($this->_minLength, $this->_maxLength);
		while ($wordLength--) {
			$index = mt_rand(0, 25);
			$word .= self::$_alphas[$index];
		}
		return $word;
	}
}
//用法
$config = [
'num' => 500,
];
$genRandWords = new GenRandWords($config);
$words = $genRandWords->generate();
foreach($words as $x=>$value) {
	echo $value.".ityinhu.com";
	echo "<br>";
}

可以用来生成二级域名，还是很不错的。