PHP TUTORIALS

Tuesday 18 February 2014

PHP Data Types

PHP Data Types

Today i will teach you. how we can use PHP data types.
There are Seven types of PHP Data Types.

String.
Integer.
Floating point numbers,
Boolean.
Array.
Object.
NULL.

String Data type:-The string is a sequence of characters. we can be any text inside quotes. we have used single or double quotes. you can see below in examples
Example of String Data types:-

<html>
<head>
<title>String data type</title>
</head>
<body>
<?php 
$x= "Hello PHP";
$y= "Welcome to PHP";
echo $x;
echo "<br>";
echo $y;
?>
</body>
</html>

Output
Hello PHP
Welcome to PHP
Integer Data type:-Integer is a basic data types. We can assign which has no of fractional part to int type but int is a 2 Byte space.
Importants Rules:
Integer is a least one digit (0-9).
Integer cannot contain comma or blanks.
Integer must not have a decimal point.
Integer can be either positive or negative values.
Now we can assign a value between the above range below example. In this example we have used different variables like as negative number, hexadecimal number ,octal numbers and we have used PHP var_dump(); function returns the data type.
Example

<html>
<head>
<title>Integer Data types</title>
</head>
<body>
<?php 
$y = 4567;
var_dump($y);
echo "<br>"; 
$y = -254; // negative number 
var_dump($y);
echo "<br>"; 
$y = 0x8C; // hexadecimal number
var_dump($y);
echo "<br>";
$y = 047; // octal number
var_dump($y);
?> 

</body>
</html>

Output
int(4567)
int(-254)
int(140)
int(39)

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Tuesday 18 February 2014

PHP Data Types

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