wei.png
<?php
/*
* 位运算符号
*
* 位， 按位运算
*
*
*
* hello world
*
* hello world
*
* h e l l o
*
* 104 - 是由32位0 和 1 （二进制组成）
*
*
* 104 = 64 + 32 + 8
*
* 0 0000000 00000000 00000000 01101000 = 104
*
*
*
* boolean || boolean = boolean
*
* 12 ^ 13 =
*
* 12= 8 + 4
* 13= 8 + 4 + 1
* 00000000 00000000 00000000 00001100
* 00000000 00000000 00000000 00001101 ^
* --------------------------------------------
* 00000000 00000000 00000000 00000001
*
* 12
*
* 65 = 64 + 1 = 1000001
* 97 = 64 + 32 + 1 = 1100001 |
* ------------------------------------------
* 0100000
* 0 0000000 00000000 00000000 00001100
* 1 1111111 11111111 11111111 11110011
*
* 00000000 00000000 00000000 00001100
* 000000 00000000 0000000000 00110000 << 2
* 00000000 00000000 00000000 00000011 >> 2
*
*
* 00000001
* 00000100
*
*
*
*
* */
var_dump(12 >>> 2);
