<?php /** * PHP 非对称 加密 */ $config = array( "digest_alg" => "sha512", "private_key_bits" => 4096, //字节数 512 1024 2048 4096 等 "private_key_type" => OPENSSL_KEYTYPE_RSA, //加密类型 ); $res = openssl_pkey_new($config…

<? $start_time = microtime(true); $n=5000; // 圆周率的长度 $w = $n+10; $b =bcpow(10,$w); $rtemp=bcmul($left=$b, $right=4); $x1 =bcdiv($left=$rtemp, $right=5); $x2 =bcdiv($left=$b, $right=-239); $he=bcadd($left=$x1, $right=$x2); $n =$n*2; for ($i=3; $i<$n; $i =…

/* * 节气通用算法 */ function get_term($_year,$month,$day) { $year = substr($_year,-2)+0; $coefficient = array( array(5.4055,2019,-1),//小寒 array(20.12,2082,1),//大寒 array(3.87),//立春 array(18.74,2026,-1),//雨水 array(5.63),//惊蛰 array(20.646,2084,1),//春分 array(4.81),//清明…