PHP Operator - PHP Basic Introductory Tutorial_PHP Tutorial

Operators are the basic content used in any development language. Let me introduce some basic knowledge and usage of PHP operators. The

operator is used to operate on values.

PHP Operators

This section lists the various operators used in PHP:

Arithmetic operators

运算符	说明	例子	结果
+	Addition	x=2 x+2	4
-	Subtraction	x=2 5-x	3
*	Multiplication	x=4 x*5	20
/	Division	15/5 5/2	3 2.5
%	Modulus (division remainder)	5%2 10%8 10%2	1 2 0
++	Increment	x=5 x++	x=6
–	Decrement	x=5 x–	x=4

Assignment operator

运算符	说明	例子
=	x=y	x=y
+=	x+=y	x=x+y
-=	x-=y	x=x-y
*=	x*=y	x=x*y
/=	x/=y	x=x/y
.=	x.=y	x=x.y
%=	x%=y	x=x%y

Comparison operators

运算符	说明	例子
==	is equal to	5==8 returns false
!=	is not equal	5!=8 returns true
>	is greater than	5>8 returns false
<	is less than	5<8 returns true
>=	is greater than or equal to	5>=8 returns false
<=	is less than or equal to	5<=8 returns true

Logical operators

运算符	说明	例子
&&	and	x=6 y=3(x < 10 && y > 1) returns true
||	or	x=6 y=3(x==5 || y==5) returns false
!	not	x=6 y=3!(x==y) returns true

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