Presentation
Presentation
Zeeshan Ahmed
Group No 3
Rashid Nawaz
Saad Sattar
Abdul Wahab
Functions in PHP
PHP Form
Post And Get Method
Usage of PHPMYADMIN
Making Database
MYSQL
PHP data base connectivity
Topics
Defination:
Functions are the group of statements that you can execute as a
single unit. Function definations are the lines of code that make
up a function
The syntax for defining a function is:
There are two types of functions.
Built-in functions.
User defined functions.
Functions in PHP
PHP has lots of built-in functions that we use all the time.
Some of the function are given below:
PHP Array Functions
PHP Calendar Functions
PHP File System Functions
PHP MySQL Functions
Math functions
Built-in Functions
PHP Array Functions:
These functions allow you to interact with and manipulate arrays
in various ways. Arrays are essential for storing, managing, and
operating on sets of variables. Some Array Functions are:
Array(), Array push(), Array pop() etc.
Example of Array():
Example Of Array push():
Example Of Array pop():
PHP Calendar Functions:
The calendar extension presents a series of functions to
simplify converting between different calendar formats. Some PHP
Calendar Functions are:
Cal info(), Cal days in month() etc.
Example of Cal info()
Example of Cal days in month().
PHP Filesystem Functions:
The filesystem functions are used to access and manipulate the
filesystem PHP provides you all the posible functions you may need
to manipulate a file.
List:
Copy(), delete(), file(), filetype() etc
MySQL Functions:
These are functions dealing with MySQL handling and logging or
to control the MySQL through PHP functions.
List:
mysql_close(), mysql_connect() etc.
Example:
Math functions:The math functions can handle values within the
range of integer and float types.
List:
hexdec(), sqrt(), sin() etc
Example of hexdec():
Example of sqrt():
Example of sin():
A user defined functionis a user-defined set of commands that
are carried out when the function is called.
Syntax:
Function functionName()
{
code to be executed;
}
NOTE:
A function should start with keywordfunctionand all the function
code should be put inside { and } brace.
A function name can start with a letter or underscore not a
number.
The function names are case-insensitive.
User Defined Functions
Information can be passed to functions through arguments. An
argument is just like a variable.
Arguments are specified after the function name, inside the
parentheses.
You can add as many arguments as you want, just separate them
with a comma.
PHP Function Arguments
User Defined Function Without Arguments
Examples
User Defined Function With One Argument
Examples
User Defined Function With One Argument
