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#2 - PHP Data Types

There are eight fundamental data types in PHP. Here’s an overview of these eight types.

Data Types	Description	Example
String	A sequence of characters inside quotes	“Hello World”
Boolean	A boolean represent two states: true/false	true false
NULL	Shows absence of a value. An unassigned variable has the value null	$a; // variable a is null
Array	An array stores multiple values in a single variable	[1,2,3,4,5,6,7,8,9,10]
Integer	An integer represents a non-decimal number	100 -2 2000 1
Double	A double represents decimal or numbers in exponential form	3.14159 22.6 -3.1
Object	An instance of a class that inherits its attributes and methods	$person = new Person()
Resource	A resource data type is a reference to an external resource like a file or database	Database call

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<?php
 
//Output: string
echo gettype("Hello World");
 
//Output: boolean
echo(gettype(true));
 
//Output: array
echo gettype(["Welcome","To","AlgoDaily"]);
 
//Output: integer
echo gettype(100);
 
//Output: double
echo gettype(3.14149);
 
//Output: NULL
echo gettype(null);
 
?>

#2 - PHP Data Types

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