zf2 how arrays will save your project

Zend Framework2How arrays will save your project

in it2PROFESSIONAL PHP SERVICES

Michelangelo van DamPHP Consultant, Community Leader & Trainer

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ScheduleIntroduction to ZF2

The array

Challenges in development

Solutions offered in ZF2

More options

ScheduleIntroduction to ZF2

The array

Challenges in development

Solutions offered in ZF2

More options

“The Array Framework”

<?php /**  * Zend Framework 2 Configuration Settings  *  */ return array(     'modules' => array(         'Application',         'In2it\\SsoProvider',         'In2it\\Crm\\Dashboard',         'In2it\\Crm\\ContactManager',         'In2it\\Crm\\OrderManager',         'In2it\\Crm\\ProductManager',     ),     'module_listener_options' => array(         'module_paths' => array(             './module',             './vendor'         ),         'config_glob_paths' => array(             '/home/dragonbe/workspace/Totem/config/autoload/{,*.}{global,local}.php'         ),         'config_cache_key' => 'application.config.cache',         'config_cache_enabled' => true,         'module_map_cache_key' => 'application.module.cache',         'module_map_cache_enabled' => true,         'cache_dir' => 'data/cache/'     ) );

<?phpnamespace In2it\Crm\Dashboard;

use Zend\ModuleManager\Feature\ConfigProviderInterface; use Zend\Mvc\ModuleRouteListener; use Zend\Mvc\MvcEvent;

class Module implements ConfigProviderInterface {     public function getAutoloaderConfig()     {         return array(             'Zend\Loader\ClassMapAutoloader' => array(                 __DIR__ . '/autoload_classmap.php',             ),             'Zend\Loader\StandardAutoloader' => array(                 'namespaces' => array(                     __NAMESPACE__ => __DIR__ . '/src/' . __NAMESPACE__,                 ),             ),         );     }

    public function getConfig()     {         return include __DIR__ . '/config/module.config.php';     } }

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ScheduleIntroduction to ZF2

The array

Challenges in development

Solutions offered in ZF2

More options

array_change_key_case array_chunk array_column

array_combine array_count_values

array_diff_assoc array_diff_key

array_diff_uassoc array_diff_ukey

array_diff array_fill_keys

array_fill array_filter array_flip

array_intersect_assoc array_intersect_key

array_intersect_uassoc array_intersect_ukey

array_intersect array_key_exists

array_keys array_map

array_merge_recursive array_merge

array_multisort array_pad array_pop

array_product

array_push array_rand

array_reduce array_replace_recursive

array_replace array_reverse array_search

array_shift array_slice

array_splice array_sum

array_udiff_assoc array_udiff_uassoc

array_udiff array_uintersect_assoc array_uintersect_uassoc

array_uintersect array_unique array_unshift array_values

array_walk_recursive array_walk

array arsort asort

compact count

current

each end

extract in_array

key_exists key

krsort ksort list

natcasesort natsort

next pos prev

range reset rsort

shuffle sizeof sort

uasort uksort usort

Do you know them?

array_search array_filter

? ? ? ??

? ? ??

??

???

? ? ?

count array_sum

array_product

? ? ? ??

? ? ??

??

???

? ? ?

array_diff array_intersect array_merge

? ? ? ??

? ? ??

??

???

? ? ?

// Let's take one value out of our array $array = ['apple', 'banana', 'chocolate'];

$newArray = []; foreach ($array as $value) {   if ('banana' !== $value) {       $newArray[] = $value;   } } echo implode(', ', $newArray);

// Outputs: apple, chocolate

<?php

// Let's take one value out of our array $array = ['apple', 'banana', 'chocolate'];

// I keep an ignore list as well $ignore = ['banana'];

// Ready for magic? echo implode(', ', array_diff($array, $ignore));

// Outputs: apple, chocolate

<?php

// I have one associative array $array = ['a' => 'apple', 'b' => 'banana', 'c' => 'chocolate'];

// And a similar value array $similar = ['banana', 'chocolate'];

// I need to get the keys of similar items from original array $newSimilar = []; foreach ($array as $key => $value) {     if (in_array($value, $similar)) {         $newSimilar[$key] = $value;     } } $similar = $newSimilar; unset ($newSimilar);

var_dump($similar);

/* Outputs: array(2) {   'b' =>   string(6) "banana"   'c' =>   string(9) "chocolate" } */

<?php

// I have one associative array $array = ['a' => 'apple', 'b' => 'banana', 'c' => 'chocolate'];

// And a similar value array $similar = ['banana', 'chocolate'];

// I need to get the keys of similar items from original array $similar = array_intersect($array, $similar);

var_dump($similar);

/* Outputs: array(2) {   'b' =>   string(6) "banana"   'c' =>   string(9) "chocolate" } */

One more?

<?php

// I have one associative array $array = ['a' => 'apple', 'b' => 'banana', 'c' => 'chocolate'];

// I need to find a given value -> 'chocolate' $search = 'chocolate'; $searchResult = []; foreach ($array as $key => $value) {     if ($search === $value) {         $searchResult[$key] = $value;     } } var_dump($searchResult);

/* Outputs: array(1) {   'c' =>   string(9) "chocolate" } */

<?php

// I have one associative array $array = ['a' => 'apple', 'b' => 'banana', 'c' => 'chocolate'];

// I need to find a given value -> 'chocolate' $search = 'chocolate'; $searchResult = array_filter($array, function ($var) use ($search) {      return $search === $var; }); var_dump($searchResult);

/* Outputs: array(1) {   'c' =>   string(9) "chocolate" } */

ScheduleIntroduction to ZF2

The array

Challenges in development

Solutions offered in ZF2

More options

Lots of data

Lists of data rows

<?php

$query = "SELECT * FROM `contact` WHERE `age` > ? AND `gender` = ?"; $stmt = $pdo->prepare($query); $stmt->bindParam(1, $cleanAge); $stmt->bindParam(2, $cleanGender); $stmt->execute();

// A resultset of 63,992 entries stored in an array!!! $resultList = $stmt->fetchAll();

<?php

public function getSelectedContacts($age, $gender) {     $resultSet = $this->tableGateway->select(array(         'age' => $age,         'gender' => $gender,     ));    return $resultSet; }

Iterators!!!

Loop with arrays• Data fetching time for 63992 of 250000 records:

2.14 seconds

• Data processing time for 63992 of 250000 records: 7.11 seconds

• Total time for 63992 of 250000 records: 9.25 seconds

• Memory consumption for 63992 of 250000 records: 217.75MB

Loop with Iterators• Data fetching time for 63992 of 250000 records:

0.92 seconds

• Data processing time for 63992 of 250000 records: 5.57 seconds

• Total time for 63992 of 250000 records: 6.49 seconds

• Memory consumption for 63992 of 250000 records: 0.25MB

Loop with Iterators• Data fetching time for 63992 of 250000 records:

0.92 seconds

• Data processing time for 63992 of 250000 records: 5.57 seconds

• Total time for 63992 of 250000 records: 6.49 seconds

• Memory consumption for 63992 of 250000 records: 0.25MB <-> 217.75MB

ScheduleIntroduction to ZF2

The array

Challenges in development

Solutions offered in ZF2

More options

Iterators

Interfaces

Responsibility Separation

Modules

ScheduleIntroduction to ZF2

The array

Challenges in development

Solutions offered in ZF2

More options

–Michelangelo van Dam

“You dislike arrays because you don’t know them well enough to love them”

Links

• Array functions http://php.net/manual/en/ref.array.php

• Iterator http://php.net/manual/en/class.iterator.php

• SPL Iterators and DataStructures http://php.net/spl/

PHPSheatSheetshttp://phpcheatsheets.com/index.php

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Contact us

in it2PROFESSIONAL PHP SERVICES

Michelangelo van Dam michelangelo@in2it.be

www.in2it.be

PHP Consulting - Training - QA

Thank youHave a great conference

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