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Modern PHP
is Amazing
You Can Use It
Today
@stauffermatt
A N D
Why
How
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Matt Stauffer
@stauffermatt
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Gainesville
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My history
Graphic
Design
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My history
Graphic
Design Frontend
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My history
Graphic
Design Frontend
Hacky PHP
& Wordpress
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My history
Graphic
Design Frontend
Hacky PHP
& Wordpress
Left for 5 years
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My history
Graphic
Design Frontend
Hacky PHP
& Wordpress CodeIgniter
Left for 5 years
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My history
Graphic
Design Frontend
Hacky PHP
& Wordpress CodeIgniter
Expression
Engine
Left for 5 years
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My history
Graphic
Design Frontend
Hacky PHP
& Wordpress CodeIgniter
Expression
Engine Rails
Left for 5 years
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My history
Graphic
Design Frontend
Hacky PHP
& Wordpress CodeIgniter
Expression
Engine Rails Laravel
Left for 5 years
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My history
Graphic
Design Frontend
Hacky PHP
& Wordpress CodeIgniter
Expression
Engine Rails Laravel
General
Good
Developer-y
Stuff
Left for 5 years
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Who are we?
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Who are we?
Self-taught
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Who are we?
Self-taught
Wordpress, EE, CI, etc.
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Who are we?
Self-taught
Wordpress, EE, CI, etc.
Bootstrappy small-to-medium companies
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Who are we?
Self-taught
Wordpress, EE, CI, etc.
Bootstrappy small-to-medium companies
“Lone cowboy” types*
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Our tools are
holding us back.
THE PROBLEM:
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Our tools are
holding us back.
THE PROBLEM:
(certain of)
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Our tools are
holding us back.
THE PROBLEM:
(certain of)
THE SOLUTION:
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Our tools are
holding us back.
THE PROBLEM:
(certain of)
Fix (or ditch) them.
THE SOLUTION:
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Disclaimers:
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Disclaimers:
1. You might already know this
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Disclaimers:
1. You might already know this
2. This may be totally overwhelming
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Disclaimers:
1. You might already know this
2. This may be totally overwhelming
3. Easiest in modern environments
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Disclaimers:
1. You might already know this
2. This may be totally overwhelming
3. Easiest in modern environments
4. One size fits some
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5 LESSONS TO MAKE YOUR PHP BETTER
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Embrace the Object
Object Oriented PHP
LESSON 1
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Classic PHP is
{ procedural }
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'Chuck E Cheese',
'screenshot' =>
'images/portfolio/
chuck01.jpg'
Procedural PHP
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'Chuck E Cheese',
'screenshot' =>
'images/portfolio/
chuck01.jpg'
contact-us.ph
if(isset($_POST))
$results = va
if ($results
include_o
} else {
$errors =
}
Procedural PHP
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hydrate($properties);
}
!
public function getRelatedImages()
{
if ($this->cache_images === null) {
$this->cacheRelatedImages();
}
!
return $this->cache_images;
}
!
protected function hydrate(array $properties)
Object-Oriented PHP
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hydrate($properties);
}
!
public function getRelatedImages()
{
if ($this->cache_images === null) {
$this->cacheRelatedImages();
}
!
return $this->cache_images;
}
!
protected function hydrate(array $properties)
Name Object-Oriented PHP
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hydrate($properties);
}
!
public function getRelatedImages()
{
if ($this->cache_images === null) {
$this->cacheRelatedImages();
}
!
return $this->cache_images;
}
!
protected function hydrate(array $properties)
Name
Properties
Object-Oriented PHP
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hydrate($properties);
}
!
public function getRelatedImages()
{
if ($this->cache_images === null) {
$this->cacheRelatedImages();
}
!
return $this->cache_images;
}
!
protected function hydrate(array $properties)
Name
Properties
Constructor
Object-Oriented PHP
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hydrate($properties);
}
!
public function getRelatedImages()
{
if ($this->cache_images === null) {
$this->cacheRelatedImages();
}
!
return $this->cache_images;
}
!
protected function hydrate(array $properties)
Name
Properties
Constructor
Public method
Object-Oriented PHP
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hydrate($properties);
}
!
public function getRelatedImages()
{
if ($this->cache_images === null) {
$this->cacheRelatedImages();
}
!
return $this->cache_images;
}
!
protected function hydrate(array $properties)
Name
Properties
Constructor
Public method
Protected method
Object-Oriented PHP
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!
!
!
!
!
!
= $item->title; ?>
!Images
!-
getRelatedImages() as $image): ?>
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PHP is an
OOP late bloomer
2007 2015
2011
2003
1999
1995
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PHP is an
OOP late bloomer
2007 2015
2011
2003
1999
1995
PHP
released
1995
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PHP is an
OOP late bloomer
2007 2015
2011
2003
1999
1995
PHP 5.3
(true OOP)
PHP
released
1995
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PHP is an
OOP late bloomer
2007 2015
2011
2003
1999
1995
PHP 5.3
(true OOP)
PHP
released
1995
PHP 5.2
EOL’ed
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PHP is an
OOP late bloomer
2007 2015
2011
2003
1999
1995
PHP 5.3
(true OOP)
PHP
released
1995
5.3 50%
adoption
PHP 5.2
EOL’ed
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CodeIgniter
taught me OOP
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CodeIgniter
taught me OOP
some OOP-y things
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1) Separation of Concerns
(MVC)
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2) Single Responsibility Principle
3) Modules
4) Singletons
(Libraries)
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CodeIgniter libraries are
usually just wrappers around
a few related functions
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CodeIgniter Developer
!= (necessarily)
OOP Developer
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brandon ruined me
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What OOP isn’t
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What OOP isn’t
Taking all of your old DB-
related functions & bundling
them into a "model"
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Taking all of your old
functions & bundling them
into a "library"
What OOP isn’t
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echo
createFullDisplayNameForContactReversed(
$prefix,
$first_name,
$middle_name,
$last_name,
$suffix,
etc.);
What OOP isn’t
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What OOP is
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What OOP is
things
that do
things
to other
things
thing
thing
thing
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Windows:Mac/*nix
::
Procedural:OOP
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Foundations Of OOP
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Interfaces
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SOLID
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SOLID
1. Single Responsibility
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SOLID
1. Single Responsibility
2. Open-Closed
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SOLID
1. Single Responsibility
2. Open-Closed
3. Liskov Substitution
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SOLID
1. Single Responsibility
2. Open-Closed
3. Liskov Substitution
4. Interface Segregation
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SOLID
1. Single Responsibility
2. Open-Closed
3. Liskov Substitution
4. Interface Segregation
5. Dependency Inversion
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thing2
thing1
Tight Coupling
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thing2
thang
thing1
Tight Coupling
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thing2
thing1
injected
Off Limits
Law of Demeter
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Why OOP?
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Sharing & Reuse
Why OOP?
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Lower cost of debug
Why OOP?
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Lower cost of
comprehension
Why OOP?
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Limited interfaces
Why OOP?
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Lower cost of
change
Why OOP?
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Refactor Time
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* @param array $contact Contact
* @param array $options Options
* @return string Full name
*/
function returnContactFullName( array $contact, $options = array()
{
// Tack middle name onto first
if ($contact['contact_mname'] != '') {
$contact['contact_fname'] .= ' ' . $contact['contact_mname'];
}
if ($contact['contact_sp_mname'] != '') {
$contact['contact_sp_fname'] .= ' '.$contact['contact_sp_mname'
}
!
if ( ! empty($contact['contact_sp_fname']) || ( ! empty($contact[
empty($contact['contact_sp_title']))) {
// Contact has a spouse.
// Prep title
$contact_title = $spouse_title = NULL;
!
if (
(empty($contact['contact_title']) && empty($contact['contact_
in_array('no_title', $options)
) {
// No titles. Go without.
} elseif (empty($contact['contact_sp_title'])) {
// Title for contact but not spouse. Only can handle if Mr.
if ($contact['contact_title'] == 'Mr' || $contact['contact_ti
$contact['contact_sp_title'] = str_replace('Mr', 'Mrs', $co
$contact_title = $contact['contact_title'];
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*
* @todo Get this out of the helper
* @param array $contact Contact
* @param array $options Options
* @return string Full name
*/
function returnContactFullName( array $contact, $options = array() )
{
// Tack middle name onto first
if ($contact['contact_mname'] != '') {
$contact['contact_fname'] .= ' ' . $contact['contact_mname'];
}
if ($contact['contact_sp_mname'] != '') {
$contact['contact_sp_fname'] .= ' '.$contact['contact_sp_mname'];
}
!
if ( ! empty($contact['contact_sp_fname']) || ( ! empty($contact['contact_title']) && !
empty($contact['contact_sp_title']))) {
// Contact has a spouse.
// Prep title
$contact_title = $spouse_title = NULL;
!
if (
(empty($contact['contact_title']) && empty($contact['contact_sp_title'])) ||
in_array('no_title', $options)
) {
// No titles. Go without.
} elseif (empty($contact['contact_sp_title'])) {
// Title for contact but not spouse. Only can handle if Mr.
if ($contact['contact_title'] == 'Mr' || $contact['contact_title'] == 'Mr.') {
$contact['contact_sp_title'] = str_replace('Mr', 'Mrs', $contact['contact_title'])
$contact_title = $contact['contact_title'];
Extract refactor
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*
* @todo Get this out of the helper
* @param array $contact Contact
* @param array $options Options
* @return string Full name
*/
function returnContactFullName( array $contact, $options = array() )
{
// Tack middle name onto first
if ($contact['contact_mname'] != '') {
$contact['contact_fname'] .= ' ' . $contact['contact_mname'];
}
if ($contact['contact_sp_mname'] != '') {
$contact['contact_sp_fname'] .= ' '.$contact['contact_sp_mname'];
}
!
if ( ! empty($contact['contact_sp_fname']) || ( ! empty($contact['contact_title']) && !
empty($contact['contact_sp_title']))) {
// Contact has a spouse.
// Prep title
$contact_title = $spouse_title = NULL;
!
if (
(empty($contact['contact_title']) && empty($contact['contact_sp_title'])) ||
in_array('no_title', $options)
) {
// No titles. Go without.
} elseif (empty($contact['contact_sp_title'])) {
// Title for contact but not spouse. Only can handle if Mr.
if ($contact['contact_title'] == 'Mr' || $contact['contact_title'] == 'Mr.') {
$contact['contact_sp_title'] = str_replace('Mr', 'Mrs', $contact['contact_title'])
$contact_title = $contact['contact_title'];
Extract refactor
$this->appendMiddleNames();
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*
* @todo Get this out of the helper
* @param array $contact Contact
* @param array $options Options
* @return string Full name
*/
function returnContactFullName( array $contact, $options = array() )
{
// Tack middle name onto first
if ($contact['contact_mname'] != '') {
$contact['contact_fname'] .= ' ' . $contact['contact_mname'];
}
if ($contact['contact_sp_mname'] != '') {
$contact['contact_sp_fname'] .= ' '.$contact['contact_sp_mname'];
}
!
if ( ! empty($contact['contact_sp_fname']) || ( ! empty($contact['contact_title']) && !
empty($contact['contact_sp_title']))) {
// Contact has a spouse.
// Prep title
$contact_title = $spouse_title = NULL;
!
if (
(empty($contact['contact_title']) && empty($contact['contact_sp_title'])) ||
in_array('no_title', $options)
) {
// No titles. Go without.
} elseif (empty($contact['contact_sp_title'])) {
// Title for contact but not spouse. Only can handle if Mr.
if ($contact['contact_title'] == 'Mr' || $contact['contact_title'] == 'Mr.') {
$contact['contact_sp_title'] = str_replace('Mr', 'Mrs', $contact['contact_title'])
$contact_title = $contact['contact_title'];
Extract refactor
if ($this->hasSpouse()) {
$this->appendMiddleNames();
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*
* @todo Get this out of the helper
* @param array $contact Contact
* @param array $options Options
* @return string Full name
*/
function returnContactFullName( array $contact, $options = array() )
{
// Tack middle name onto first
if ($contact['contact_mname'] != '') {
$contact['contact_fname'] .= ' ' . $contact['contact_mname'];
}
if ($contact['contact_sp_mname'] != '') {
$contact['contact_sp_fname'] .= ' '.$contact['contact_sp_mname'];
}
!
if ( ! empty($contact['contact_sp_fname']) || ( ! empty($contact['contact_title']) && !
empty($contact['contact_sp_title']))) {
// Contact has a spouse.
// Prep title
$contact_title = $spouse_title = NULL;
!
if (
(empty($contact['contact_title']) && empty($contact['contact_sp_title'])) ||
in_array('no_title', $options)
) {
// No titles. Go without.
} elseif (empty($contact['contact_sp_title'])) {
// Title for contact but not spouse. Only can handle if Mr.
if ($contact['contact_title'] == 'Mr' || $contact['contact_title'] == 'Mr.') {
$contact['contact_sp_title'] = str_replace('Mr', 'Mrs', $contact['contact_title'])
$contact_title = $contact['contact_title'];
Extract refactor
if ($this->hasSpouse()) {
if ( ! $this->hasTitles()) {
$this->appendMiddleNames();
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*
* @todo Get this out of the helper
* @param array $contact Contact
* @param array $options Options
* @return string Full name
*/
function returnContactFullName( array $contact, $options = array() )
{
// Tack middle name onto first
if ($contact['contact_mname'] != '') {
$contact['contact_fname'] .= ' ' . $contact['contact_mname'];
}
if ($contact['contact_sp_mname'] != '') {
$contact['contact_sp_fname'] .= ' '.$contact['contact_sp_mname'];
}
!
if ( ! empty($contact['contact_sp_fname']) || ( ! empty($contact['contact_title']) && !
empty($contact['contact_sp_title']))) {
// Contact has a spouse.
// Prep title
$contact_title = $spouse_title = NULL;
!
if (
(empty($contact['contact_title']) && empty($contact['contact_sp_title'])) ||
in_array('no_title', $options)
) {
// No titles. Go without.
} elseif (empty($contact['contact_sp_title'])) {
// Title for contact but not spouse. Only can handle if Mr.
if ($contact['contact_title'] == 'Mr' || $contact['contact_title'] == 'Mr.') {
$contact['contact_sp_title'] = str_replace('Mr', 'Mrs', $contact['contact_title'])
$contact_title = $contact['contact_title'];
Extract refactor
if ($this->hasSpouse()) {
if ( ! $this->hasTitles()) {
$this->duplicateSpouseTitleIfNeeded();
$this->appendMiddleNames();
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contact_array = $contact_array;
$this->options = $options;
$this->processContactArray();
}
!
public function output()
{
return $this->getFullName();
}
!
protected function getFullName()
{
if ($this->hasSpouse()) {
return $this->getFullNameWithSpouse();
} else {
return $this->getFullNameIndividual();
}
Extract refactor result
output();
Example use:
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Instant Re-use
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Lone cowboys
vs.
Jetsons
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Learn from those who
came before you
Design Patterns &
Coding Standards
LESSON 2
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Design Patterns
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The Human
Brain Identifies
Patterns
https://www.flickr.com/photos/flamephoenix1991/8376271918/
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What are
Design Patterns?
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No content
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“Gang of Four”
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Familiar Patterns
Module
Observer
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Familiar Patterns
(but not by name)
Singleton
Adapter
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Not set in stone
23 patterns in “Design Patterns”
13 patterns in “Code Complete”
49 patterns on WIkipedia
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Standards
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db
->set('tnt_org_ini', $new_ini)
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You shouldn’t be able to identify
who wrote a piece of code just by
looking at it.
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Sublime Text is not
the Sistine Chapel.
Consistency over
cleverness.
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def. Standards
agreements within any group to
adhere to a convention. Benefits:
consistency, interoperability,
comprehension
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PSRs (FIG)
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PSRs (FIG)
PSR-0/4: Autoloading
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PSRs (FIG)
PSR-0/4: Autoloading
PSR-1 & PSR-2: Coding Standards
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PSRs (FIG)
PSR-0/4: Autoloading
PSR-1 & PSR-2: Coding Standards
PSR-3: Logger Interface
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PHPCS
http://philsturgeon.co.uk/blog/2013/08/php-static-analysis-in-sublime-text
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How do I get started?
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read
Gang of Four
Head First Design Patterns
PHP Objects, Patterns, and Practice
Brandon Savage’s “PHP Design Patterns”
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skim
read your old code
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consider
next time you write
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standardize
create internal standards
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contact_array = $contact_array;
$this->options = $options;
$this->processContactArray();
}
!
public function output()
{
return $this->getFullName();
}
!
protected function getFullName()
{
if ($this->hasSpouse()) {
return $this->getFullNameWithSpouse();
PSR-4 Name Class
output();
Example use:
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Lone cowboys
vs.
Jetsons
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Play nice with others
Composer, Packagist, & Code Reuse
LESSON 3
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Sharing just got easy
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What's a Package
Manager?
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History of PHP
shareability
PEAR
PHPScripts.org
Composer
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{
"name": "mattstauffer/peersconf",
"description": "PeersConf Demo",
"require": {
"nesbot/carbon": "1.6.*",
"php": ">=5.3.0",
"laravel/framework": "4.0.*",
"dflydev/markdown": "1.0.*",
"iron-io/iron_mq": "1.4.*",
"filp/whoops": "1.0.*",
"bugsnag/bugsnag": "2.*",
"mockery/mockery": "0.*",
"psr/log": "1.0.*",
"imagine/imagine": "v0.5.0",
"iron-io/iron_worker": "1.4.1"
},
"autoload": {
"psr-0": {
"PeersConf": "application/",
},
},
"config": {
},
"require-dev": {
"fzaninotto/Faker": "dev-master",
"phpunit/phpunit": "3.7.*"
composer.json
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Next Time You Need a
Package/Library
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No content
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No content
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How do I use
Composer today?
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In my CMS...
Plugins
Dukt & Exp:resso for EE examples
Craft: Adrian Macneil “Cocktail Recipes”
TD’s Craft Guzzle for wrapping packages
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In my app...
Built into Laravel, Slim, Silex, Yii,
Symfony2, ZF2
Can be done in CI
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A few packages to try out
• Guzzle
• Twig
• Carbon
• Monolog
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Lone cowboys
vs.
Jetsons
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Be lazy
Delegating to third-party SAAS apps
LESSON 4
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Lone cowboys don’t delegate well.
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Rails FTW
on delegation
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Karani + PDF
PrinceXML
$3800
Docraptor
$.02-$.08/sheet
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(also)
gridonic/princexml-php
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The benefits of
3rd party services
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Limit the
requirements of your
domain knowledge
The benefits of
3rd party services
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Distribute
usefulness to
whole company
The benefits of
3rd party services
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Auto-all-the-things
The benefits of
3rd party services
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Consistency
The benefits of
3rd party services
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Worth trying:
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iron.io
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mailgun/mandrill/sendgrid
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bugsnag/getsentry
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New Relic
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TravisCI, Coveralls
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Scrutinizer/Sensio Labs
Insights/CodeClimate
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Lone cowboys
vs.
Jetsons
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Cover your butt
Testing & TDD
LESSON 5
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You’ve heard you
should test…
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What is
(automated software)
testing?
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The Matt Stauffer Authorized Definition
Testing: Making sure a piece of code
does what it's supposed to, so you can
find out if it’s broken*now*, rather than
when an angry customer emails you.
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Benefits of testing
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1. Catch bugs in dev
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2. Refactor with Confidence
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simple_john_doe, array());
!
$this->assertEquals($output_name, $name->output());
}
!
public function testHandlesSimpleIndividualReversed()
{
$output_name = 'Doe, John';
!
$name = new Name($this->simple_john_doe, array('reversed'));
!
$this->assertEquals($output_name, $name->output());
}
!
public function testHandlesDecoratedIndividual()
{
$output_name = 'Dr. John Edward Doe MD';
!
$name = new Name($this->decorated_john_doe, array());
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"What a pain to go back
and write all those tests"
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What is TDD?
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TDD != testing
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Red
Green
Refactor
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[red example]
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No content
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How do I get started
with testing?
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1. PHPUnit
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2. Write tests for
all bug fixes
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3. Write tests for
all new code
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4. Stick with just
unit tests for now
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How do I get started
in my
environment?
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Laravel: Built in
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Craft: Built in
(check out adrian macneil)
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CodeIgniter:
It can be done
https://bitbucket.org/kenjis/my-ciunit
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ExpressionEngine:
It can be done, ish
Stephen Lewis & Testee
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Lone cowboys
vs.
Jetsons
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Outro
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Recap
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Recap
1. Embrace the object
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Recap
1. Embrace the object
2. Learn from those who came before you
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Recap
1. Embrace the object
2. Learn from those who came before you
3. Play nice with others
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Recap
1. Embrace the object
2. Learn from those who came before you
3. Play nice with others
4. Be lazy
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Recap
1. Embrace the object
2. Learn from those who came before you
3. Play nice with others
4. Be lazy
5. Cover your butt
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Advanced stuff
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Exceptions
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HHVM
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Hack
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Vagrant
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Gitflow & PRs
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Chef/Puppet/
Capistrano/Envoy
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IRC
(party like it’s 1999)
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PHP 5.4
built in php server
traits
short array syntax
function array dereferencing
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PHP 5.5
generators
try/catch/finally
foreach(list)
expressions as empty() args
Array/string dereferencing
classname via ::class (alias get_class)
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PHP 5.6
Variadic functions
Argument unpacking
Constants assigned to expressions
Import namespaced functions
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No content
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No content
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Follow the FIG
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One Final Note
This is not what you “should do” because it’s nice.
!
This is what you “should do” because if you do it your
life will be better and you will make more money.
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Writing modular, reusable code.
Not reinventing the wheel.
No lone cowboys.
Learning from our peers & predecessors.
Finding the bugs before the clients do.
Having confidence to make changes in the future.
Reducing code rot & technical debt.
Making life easier.
Thanks. @stauffermatt