Stupid bird php (3) operators and expressions

Php (3) operators and expressions (1) arithmetic operators & nbsp; & #43; & nbsp;-& nbsp; * & nbsp; & nbsp; % & nbsp; & #43; & #43; & nbsp; -- & lt ;? Php $ a100; $ a ++; $ a + 1; first use variables and then auto-Increment 1 + + $ a; stupid bird learning php (3) operators and expressions

I. arithmetic operators+-*/% + + --

 "; // 100 $ B = $ a % 3.3; // % converts the numbers on both sides into integers and then completes the division of echo" B = ". $ B;?>

II. string operators.

 "; Echo 'My name is :'. $ name. 'My age is :'. $ age. 'My height is :'. $ height. 'MI '.'
'; Echo' My name is: ', $ name,' my age is: ', $ age,' my height is: ', $ height, 'meters ','
';?>

III. assignment operators= + =-= * =/= % =. =

IV. Comparison operators><>====! = Or <>! =

5. logical operators& Or and | or! Or not

VI. bitwise operators& | ^ ~ <>>>>

7. Other operators? : ''@ =>->::& $