PHP (Personal Home Page)

Hello friends in my previous blogs

PHP (Personal Home Page) - Day 1
PHP (Personal Home Page) - Day 2
PHP (Personal Home Page) - Day 3

I already describe you about the basic concept of PHP and about its syntax, tags and its variables. Now I describe the some more programming approaches in PHP.

Data type - in php there are 6 basic and 2 special data types are present.

Integer
Float/double
String
Array
Boolean
Object
Null
Resource

How to identify the data type used in a program

Output

gettype() - it is used to identify data type of the variable.

String- any thing define within the single codes (‘ ’) and double codes (“ ”) is called string. By default string hold null value.

Output

Some string functions are

Strlen();
Strpos();
Strtoupper();
Strtolower();
Strrev();
Substr();
Crypt();
Ucfirst();
Ucwords();
Is_string();

Phpinfo(); Tag

Output

This tag produce all the information about your system, server, configuration, environment etc.