PHP DATA TYPES
variable can store data of differenet types and different data types can do different things.
PHP supports the following data types:
- String
- Integer
- Float
- Boolean
- Array
- Object
- Null
- Resource
PHP String
A string is sequence of characters, like "Hello world".
Example
<!DOCTYPE html>
<html>
<head>
<title> PHP Data types String </title>
</head>
<body>
<h1> </h1>
<?php
$x = "Hello world";
<html>
<head>
<title> PHP Data types String </title>
</head>
<body>
<h1> </h1>
<?php
$x = "Hello world";
$y ="kumar Atul jaiswal";
echo $x;
Hello world
kumar Atul jaiswal
PHP Integer
A int data type is non decimal number between -2,123, 437,765, and 2,134, 345, 55676.
Rules for Integers :
- A integer have must at least one digit.
- A integer must not have a decimal point.
- A integer can be either positive or negative.
- Integer can be specified in three formats : decimal ( 10 based ), hexadecimal (16-based - prefixed with 0x ) or octal ( 8 based - prefixed with 0).
NOTE :- $x is an integer. The php var_dump() function return the data type and value.
Example
<!DOCTYPE html>
<html>
<head>
<title> PHP Data types Integers </title>
</head>
<body>
<h1> </h1>
<?php
$x = 58796;
<html>
<head>
<title> PHP Data types Integers </title>
</head>
<body>
<h1> </h1>
<?php
$x = 58796;
Output
PHP Float
A float ( floating point number ) is a number with a decimal point or a number with exponential form.
NOTE :- $x is a float. The php var_dump() function return the data type and value.
Example
<!DOCTYPE html>
<html>
<head>
<title> PHP Data types Float </title>
</head>
<body>
<h1> </h1>
<?php
$x = 87.996;
<html>
<head>
<title> PHP Data types Float </title>
</head>
<body>
<h1> </h1>
<?php
$x = 87.996;
var_dump( $x );
Output
PHP Boolean
A Boolean represent two possible states : TRUE or FALSE.
These data types provide output as 0 or 1. In PHP, value of True is one and the value of False is nothing.
- x = true;
- y = false;
Syntax
<?php
$foo = True; // assign the value TRUE to $foo
?>
Example
<!DOCTYPE html>
<html>
<head>
<title> PHP Data types Boolean</title>
</head>
<body>
<h1> </h1>
<?php
$x= True; // assign the value TRUE to $b
echo $x;
<html>
<head>
<title> PHP Data types Boolean</title>
</head>
<body>
<h1> </h1>
<?php
$x= True; // assign the value TRUE to $b
echo $x;
Output
1
Booleans are often used in conditional testing, so, you will learn about conditional testing in a later blog post of this tutorial.
PHP Array
An array store multiple values in one single variable.
In This example below $cars is an array. The php var_dump() function returns the data type and value.
<!DOCTYPE html>
<html>
<head>
<title> PHP Data types Array </title>
</head>
<body>
<h1> </h1>
<?php
$cars = array ("Jaguar XJ", "Audi ", "Range rover ", " Mercedes-Benz S-Class");
<html>
<head>
<title> PHP Data types Array </title>
</head>
<body>
<h1> </h1>
<?php
$cars = array ("Jaguar XJ", "Audi ", "Range rover ", " Mercedes-Benz S-Class");
var_dump( $cars);
Output
array(4) { [0] => string(8) "JaguarXJ" [1]=> string[4] "Audi" [2]=> string(10) "RangeRover" [3]=> string(8) "Mercedes");
NOTE :- We will soon consider the topic on Boolean, Array, Object etc.
Have a Nice Stay Here : - )
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