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PHP Reboot
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PHP Myth

Special thanks to

Let me introduce myself
Name: Kapil Sharma (Not comedian)
Working in web technologies since 2004.
Current: Tech lead at Ansh Systems.
Hobbies: Programming, Dreaming.
Vision: …

PHP Myth
What is Myth?
A traditional story, especially one concerning the early
history of a people or explaining a natural or social
phenomenon, and typically involving supernatural
beings or events.
A widely held but false belief or idea.

PHP Myth
Common PHP Myths
 PHP is crappy and there are lot of crappy PHP Programs.
 PHP is good only for web development.
 PHP is interpreted language so it is slow.
 PHP mix business and presentation logic.
 PHP is insecure.
 Development in PHP is slow.
 You can’t scale PHP applications well.
 You need to buy from Zend to make PHP work best.
 PHP is not good at OOPs.
 PHP is not good/sufficient for serious programmers.

You are BAD

Why explanation
 As PHP developer, we ideally do not need to give any
explanation.
 However a student learning PHP or new developers might feel
bad about them. Explanation is needed for them that they did
not made any mistake by selecting PHP.
 Explanation is needed to those stake holders who selected
PHP as language for their product.
 Explanation is needed to experienced PHP developers/
architects to remind them some of the possible mistakes that
might be possible in PHP.

What is Programming Language?
And who we are?
 A programming language is just a tool to fulfill business
requirements.
 As programmer (regardless of programming language) your
task is to solve business problem.
 As programmer, we solve business problems by using tool
(programming language) that fit best to solve problem.
 If other language fit best to solve a specific problem, I
recommend to go ahead and use that language.
 So as programmer, defend PHP on valid points but do not
offend any other language.

PHP is crappy and there are lot of crappy
PHP Programs
 Before we answer this myth, we must know PHP History.
 Development started in 1994 by Rasmus Lerdorf for his
Personal Home Page Tools.
 1995: Open Sourced
 April 1996: PHP FI (or PHP 2)
 1997: Zeev Surakshi and Andi Gutmans begin rewrite.
 1998: PHP 3. Renamed to ‘PHP: Hypertext Preprocessor’
 1999: PHP 4 with Zend Engine.
 July 2004: PHP 5
 June 2009: PHP 5.3
 March 2012: PHP 5.4
 June 2013 PHP 5.5

PHP Programs
 Disadvantages of being old language.
 Lot of old books and old tutorial available on internet.
 That old tutorial was correct at the time of writing but not
now. However students and new developers are still learning
from outdated tutorial.
 This is the biggest concern for world wide PHP community. Our
new members are learning wrong things.
 Phptherightway.com
 Phpmentoring.org
 Blogs phpdeveloper.org
 PHP-FIG
 PHPReboot.com (Pune local PHP Community)

PHP Programs
 Lets divide this myth in two parts:
1. Is PHP Crappy?
 Depends on what is your definitions of Crappy.
 Most of myths we discuss, falls under category of crappy.
 To answer if PHP is crappy or not, lets go through remaining
myths.
2. Is there lot of crappy PHP Programs?

Is there lot of crappy PHP Programs?
 Unfortunately Yes.

Is there lot of crappy PHP Programs?
 Unfortunately Yes.
Reasons:
 PHP is very simple and easy to learn.
 That means; There are lot of amateur programmers.
 Small companies, freelancer. (Lack of experience)
Solution:
 Conferences at global levels.
 Free resources on internet.
 Technical blogs, Twitter, Linked In.
 Local meetups.

PHP is good only for web development.
 This is fact but when PHP claimed otherwise.
 PHP first full-form was ‘Personal Home Page’.
 Is it a negative point? Not for me.
 PHP does what it is supposed to do.
 If you need desktop or mobile or embedded app or anything
else, PHP is not for you.

PHP is interpreted language so slow.
 Fact: PHP is interpreted language and interpreted language are
slower then compiled language.
 Myth: PHP is slow.
 PHP was designed to be fast. With advanced technologies,
execution time gap is reducing.
 Again execution speed (difference of few milliseconds) matters
for enterprise apps.
 For enterprise apps, when you really need speed, PHP have
many solutions to scale up your application.

PHP mix business and presentation logic
 Myth
 Yes it is possible to mix business and presentation logic in PHP
but it is possible in other languages too.
 Even though it is possible, PHP do not recommend that. PHP
fully support MVC architecture and recommend to use MVC
architecture.
 So finally it depends on Programmer if he/she mix business
logic and presentation logic.
Solution:
 We need to educate students and new programmers about it
and PHP community is doing that frequently.

PHP is insecure
 This is one of the biggest myth about PHP.
 First understand, no thing is 100% secure on internet,
regardless of programming language.
 PHP provide all the tools to write secure web applications; as
secure as possible in any other language.
 So why there is security myth about PHP?
 PHP did some mistakes in the past, which is not valid today.
 One of biggest mistake of PHP was ‘register globals’.
 Again this was not security vulnerability at PHP’s end but a
potential risk which allow developers to write insecure
program.

PHP is insecure
If ( isAdminUser() ) {
$admin = true;
} if ($admin ) {
//load admin panel
}
Consider following code

PHP is insecure
If ( isAdminUser() ) {
$admin = true;
} if ($admin ) {
//load admin panel
}
Consider following code
Is there any issue with this code?
NEVER TAKE ANY DECISION BASED ON VARIABLE WHICH MIGHT
NOT BE INITIALIZED.
http://domain.com/page.php?admin=1

Development in PHP is slow
Myth
I say that myth but don’t know the source. Just a guess: Ruby on
Rails or DJango (Framework in Python).
Is that a fair comparison?
Do not compare framework with programming language.
PHP too have many frameworks, compare with them.
One of the PHP strength is, you can develop applications in PHP
very fast.
Obviously you need experienced developers.

Cant scale PHP application well

Need to buy from Zend
Myth
Zend is a company behind PHP.
Like any open source company, they provide few solution to
earn.
Some major Zend offerings are:
OP Code Cache.
Support
IDE (Zend Studio)
Zend Guard (Obfuscation)
Zend have products but they do not dominate market.

Not good at OOPs
Myth
OOPs was introduced in PHP with PHP 5.0 in 2004
Yes OOPs support in PHP was not good at that time.
By PHP 5.3, PHP developed very good OOPs support
PHP 5.4 support traits, not still supported in many OOPs
languages.

Not good for serious programmers
Myth
PHP contributed maximum number of web based open source
projects.
Some of them are dominating in their respective fileds like:
Joomla, Wordpress, Media wiki, Megento, SugarCRM (Just to
name few)
In my office, I work with many serious PHP programmers and
communicate with many over internet.
This is not a myth but rubbish.

Is everything right with PHP?
Do not shy, answer is ‘NO’
No thing is perfect in the world.
Not do PHP.
Yes there are quite a few issues with PHP.
But what is most important
PHP do what it is
supposed to do and do it
very well.

If someone say PHP is bad
Don’t
be
like
that

If someone say PHP is bad
Lets Debate

Real question
Which programming language is better?
How to become a better programmer?

How to become better programmer?

How to become better programmer?
Learning, study and most important; code.
Share knowledge.
Contribute to Open Source.
Communicate with other developers.
Read blogs.
Remain updated with technology.
Use twitter more then facebook.

PHP Reboot
PHP Reboot is an attempt to share news and new features of
PHP and related technologies.
My idea of doing this by regular meet-up like this one.
Problem: We cant hold/attend regular meetups.
Another way: share articles, news and tutorials through free
PHP Reboot Magazine and blogs.

Thank you
Contact information
Website: Phpreboot.com
Twitter: @phpreboot
Facebook: www.facebook.com/phreboot
Email: phpreboot@gmail.com
Mailing list: PHPReboot-list@meetup.com

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