Data types in PHP




PHP has eight types of data types.It is mainly divided in two types

  1. scalar (single-value) types
  2. compound (collection) types
  3. special types



scalar (single-value) types:

It consists integers, floating-point numbers, strings, and booleans.

compound (collection) types:




It consists arrays and objects.

special types:

Consists resource and NULL.

Let Us see one by one in details.

 

Integers:-

Are whole numbers like 1,2,3,4,5,6,7,8,9……..etc. Yhe range if accepated values is –2,147,483,648 to +2,147,483,647.It can be also written in decimal, octal, or hexadecimal.

Floating-Point Numbers

It is also called as real numbers. It represents numeric value in decimal digits. It allows  numbers between 1.7E–308 and 1.7E+308 with 15 digits of accuracy.

Example: 3.14, 26.11, etc.

Strings:-

PHP supports creating and manipulating strings.It is a sequence of characters.It is written in single or double quotes.

Example: ‘santosh’ , ‘gaurav’ etc.

Booleans:-

It represents true or false state.In PHP, the following values are false:
• The keyword false
• The integer 0
• The floating-point value 0.0

• An array with zero elements
• An object with no values or functions
• The NULL value.

Arrays:-

It holds a group of values, which you can identify by position.The number zero will be first position.

Objects:-

PHP also supports object-oriented programming (OOP).

NULL:-

The NULL value represents a variable that has no value

Example: $post = NULL;

 

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Gaurav Sontakke
Trainer at Orange Computer
My Self Gaurav Sontakke From Nanded having intrest from last 14 Yrs in RedHat Linux and Windows Server Configuration . Also in PHP MySql, Bootstrap, HTML, CSS, Javascript, Angular JS programming Language.
www.vinaycomputers.in is my official website.

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