PHP is a programming language that has been used widely to make
interactive and dynamic web pages. Mastering PHP is a must if a programmer
wants to stay update to the development of technology. This article will give a
brief explanation about PHP introduction,
the basic structures, array functions and coding standards. Developing a web
page using PHP will make you able to create a login page, show pictures,
conduct surveys, create forums and other beneficial things. PHP is often called
as server-sided languages. It is because the program does not execute directly
on your computer, but you request that from your computer.
1. PHP Operators
There are many operators that you can use to conduct an operation on
values and variables. The operators are divided into some groups such as
arithmetic operators, assignment operators, logical operators, string
operators, comparison operators, array operators and increment/decrement
operators.
·
Arithmetic operators
are used when you want to perform arithmetical operations like multiplication,
subtraction, and addition.
·
Assignment operators
are used to writing a variable from a value.
·
Logical operators are
used when you want to merge conditional statements.
·
String operators are
made especially for strings.
The rest of the PHP operator will be used to perform other functions.
2. Control Structures
of PHP
Control structures are an important part of programming which gives
freedom to the script to perform different reactions depending on the user
input or the condition and handle repetitive tasks. To program
control structures basic you need to know that control structures are
divided into two types, control loops, and conditional statements.
·
Control loops allow
the user to perform repetitive task like sending emails and formatting data
from database with almost no effort.
·
Conditional
statements allow you test something and do some actions according to the result
of the test.
Both types of control structures only have a nested statement and it
does not need brackets. However, many programmers often use them in order to
make the code easier to understand.
3. Array Functions
The PHP array functions are used to
change and access arrays. It has been included in the PHP core so the users do
not need to perform an installation. There are so many array functions
available in PHP, here are some of the examples.
·
Function array() is
used to make an array
·
Function array
chunk() is used to create chunks of arrays
·
Function array count
values() is used to count an array’s value
·
Function array diff
key() is used to compare keys
There are still many other array functions and array constants which you
can learn so you will be able to perform many tasks on the program.
A coding standard is needed because many companies often develop
different coding types to suit their preference. PHP
coding standards are useful so your partner in developing a program will
be able to read the code you develop. It will also give you an insight when you
want to revise the code that has been abandoned for several times. The coding
standard is also useful for industry who want to develop high quality software.
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