php中的Base62类(适用于数值转字符串)

Base62类源码:复制代码 代码如下:class Base62 { private $string = “vPh7zZwA2LyU4bGq5tcVfIMxJi6XaSoK9CNp0OWljYTHQ8REnmu31BrdgeDkFs”; public function base62_encode($str) { $out = ”; for($t=floor(log10($str)/log10(62)); $t>=0; $t–) { $a = floor($str / pow(62, $t)); $out =