Zf2 how arrays will save your project

Zend Framework2
How arrays will save your project
in it2PROFESSIONAL PHP SERVICES

Michelangelo van Dam
PHP Consultant, Community Leader & Trainer
https://www.ﬂickr.com/photos/akrabat/8784318813

Schedule
Introduction to ZF2
The array
Challenges in development
Solutions offered in ZF2
More options

<?php
/**
* Zend Framework 2 Configuration Settings
*
*/
return array(
    'modules' => array(
        'Application',
        'In2itSsoProvider',
        'In2itCrmDashboard',
        'In2itCrmContactManager',
        'In2itCrmOrderManager',
        'In2itCrmProductManager',
    ),
    '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/'
    )
);

<?php
namespace In2itCrmDashboard;
use ZendModuleManagerFeatureConfigProviderInterface;
use ZendMvcModuleRouteListener;
use ZendMvcMvcEvent;
class Module implements ConfigProviderInterface
{
    public function getAutoloaderConfig()
    {
        return array(
            'ZendLoaderClassMapAutoloader' => array(
                __DIR__ . '/autoload_classmap.php',
            ),
            'ZendLoaderStandardAutoloader' => array(
                'namespaces' => array(
                    __NAMESPACE__ => __DIR__ . '/src/' . __NAMESPACE__,
                ),
            ),
        );
    }
    public function getConfig()
    {
        return include __DIR__ . '/config/module.config.php';
    }
}

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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

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
// 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' =>
}
*/

<?php
// 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' =>
}
*/

<?php
// 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' =>
}
*/

<?php
$query = "SELECT * FROM `contact` WHERE `age` > ? AND `gende
r` = ?";
$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;
}

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
0.92 seconds
• Data processing time for 63992 of 250000 records:  
5.57 seconds
6.49 seconds
• Memory consumption for 63992 of 250000 records:  
0.25MB

Loop with Iterators
0.92 seconds
• Data processing time for 63992 of 250000 records:  
5.57 seconds
6.49 seconds
• Memory consumption for 63992 of 250000 records:  
0.25MB <-> 217.75MB

–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/

PHPSheatSheets
http://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 you
Have a great conference
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Zf2 how arrays will save your project

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