PART 5. PHP Array - Data Types

PART 4. PHP Data Types

In this Video, I will introduce you to PHP Data Types

Variables can store data of different types, and different data types can do different things.

PHP supports the following data types:

String
Integer
Float (floating point numbers - also called double)
Boolean
Array

PHP String
A string is a sequence of characters, like "Hello world!".

A string can be any text inside quotes. You can use single or double quotes:


PHP Integer
An integer data type is a non-decimal number between -2,147,483,648 and 2,147,483,647.

Rules for integers:

An integer must have at least one digit
An integer must not have a decimal point
An integer can be either positive or negative
Integers can be specified in: decimal (base 10), hexadecimal (base 16), octal (base 8), or binary (base 2) notation
In the following example $x is an integer. The PHP var_dump() function returns the data type and value:


PHP Float
A float (floating point number) is a number with a decimal point or a number in exponential form.

In the following example $x is a float. The PHP var_dump() function returns the data type and value:


PHP Boolean
A Boolean represents two possible states: TRUE or FALSE.


PHP Array
An array stores multiple values in one single variable.

In the following example $cars is an array. The PHP var_dump() function returns the data type and value:


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