It is a presentation about basic pros and cons of PHP. I tried to figure out why so hated language is still a popular choice for web development and over 80% of web is powered by it.

1. W H Y D O I L O V E A N D H AT E P H P ?
Ł U K A S Z C H R U Ś C I E L
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2. – FA B I E N P O T E N C I E R
„People hate PHP as a Language
People like PHP as a Platform”
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3. Silex
Twig
PHP-CS-FIXER
Pimple
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4. T H I S G U Y K N O W S W H AT
H E I S S AY I N G !
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5. /295
https://scontent-cdg2-1.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/11988277_940537889346397_4268350028529041140_n.jpg?oh=21667a717b8f08e939ce38a7a95e0117&oe=566A7EDA

6. H AT E
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7. • http://webonastick.com/php.html
• http://phpsadness.com/
• http://eev.ee/blog/2012/04/09/php-a-fractal-of-bad-design/
• http://whydoesitsuck.com/why-does-php-suck/
• http://pythonhaspower.com/posts/2014/06/php-i-python-biznesowe-por
%C3%B3wnanie-budowy-aplikacji/
And many more…
B A D O P I N I O N
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8. (bool) „true” => true
(bool) „1” => true
(bool) 1 => true
(bool) -1 => true
(bool) 0 => false
(bool) „” => false
(bool) array() => ?
(bool) „false” => ?
(bool) „0” => ?
I N C O N S I S T E N C Y - B O O L E A N S
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9. (bool) „true” => true
(bool) „1” => true
(bool) 1 => true
(bool) -1 => true
(bool) 0 => false
(bool) „” => false
(bool) array() => false
(bool) „false” => true
(bool) „0” => false
I N C O N S I S T E N C Y - B O O L E A N S
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http://php.net/manual/en/language.types.boolean.php

10. I N C O N S I S T E N C Y - D O C S
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http://php.net/manual/en/class.datetime.php http://php.net/manual/pl/class.datetime.php

11. strpos(haystack, needle, offset)
array_search(needle, haystack, strict)
urlencode()
utf8_encode()
get_class()
array_merge()
strlen()
str_pad()
I N C O N S I S T E N C Y - N A M I N G
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12. E A S Y T O U S E : (
Fast to set up
Used even for complicated projects
Flexible
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13. I T I S N O T 2 0 0 4 A N Y M O R E
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14. L E T ’ S FA C E T H E T R U T H
facebook.com
baidu.com
wikipedia.org
twitter.com
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http://w3techs.com/technologies/details/pl-php/all/all
http://w3techs.com/technologies/overview/programming_language/all

15. L O V E
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16. R U L E S
SOLID
KISS
YAGNI
DRY
Object Calisthenics
Clean Code
OOP
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17. T O O L S
Silex
Symfony
Drupal
Laravel
Behat
PHPSpec
Codeception
Typo3
Sylius
PHPUnit
Twig
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Joomla
WordpressZend

18. L E A R N I N G F R O M O T H E R S
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19. C O M M U N I T Y
MIT
Open Source
Packagist
Composer
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20. PA C K A G I S T - S TAT I S T I C S
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https://packagist.org/statistics

21. E A S Y T O U S E !
Fast to set up
Good even for complicated projects
Flexible
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22. P H P S P E C - M A G I C A L F L E X I B I L I T Y
function it_calculates_tax_as_percentage_of_given_base (
TaxRateInterface $rate
) {
$rate->getAmount()->willReturn(0.23);
$this->calculate(10000, $rate)->shouldReturn(2300);
}
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23. F U T U R E
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24. P H P 7
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25. W H AT ’ S N E W O R W H AT ’ S B E T T E R
• Performance
• Exceptions on fatals
• Scalar typehints
• Return typehints
• Removal of many deprecated features
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And much more…
http://talks.php.net/fluent15#/php7

26. P E R F O R M A N C E
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http://talks.php.net/fluent15#/wpbench
http://talks.php.net/fluent15#/drupalbench

27. – A L M U A L I M
„You are not free to do what you want”
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28. „With great flexibility comes great responsibility”
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29. Q U E S T I O N S ?
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Łukasz Chruściel
@lukaszchrusciel
https://github.com/lchrusciel