Introduction to PHP

Tags

Comments

Variables

Output Statements

Concatenation Operator

+ PHP Datatypes

Floating points

Constants (define)

Magic Constants

Operator Precedence

Arithmetic Operators

Assignment Operators

Bitwise Operators

Comparison Operators

Error Control Operators

Execution Operators

Incrementing
Decrementing Operators

Logical Operators

String Operators

Array Operators

+ PHP Control Statements

If else elseif statements

While do-while statements

For for-each statements

Break statement

Continue statement

Switch statement

Declare statement

Return statement

Include, include_once

Require, require_once

+ PHP Classes & Objects

Operator Precedence in PHP : Tutorial

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Next : PHP Arithmetic Operator

You must have learn BODMAS rule in alegbra,

ie. Order of operations

Brackets
Orders(ie Powers and roots)
Division
Multiplication
Addition
Subtraction

Operator Precedence specifies how tightly it binds two expressions together.

Example :

2 + 2 * 3 = 8, it is not 12 because multiplication (*) operator has a higher precedence than the addition (+) operator.

(2 + 2) * 3 = 12 , because now Brackets (Parentheses) are given more importance.

Prev : PHP Operators

Next : PHP Arithmetic Operator