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PHP Map
Aimeos
September 04, 2020
Programming
1
44
PHP Map
Easy to use and elegant handling for PHP arrays using Map objects
Aimeos
September 04, 2020
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Transcript
PHP Array > Map
Aimeos E-Commerce framework
Why?
$list = [ ['id' => '1', 'value' => 'value1'], ['id'
=> '2', 'value' => 'value2'], null ]; Starting point
$list[] = ['id' => '3', 'value' => 'value3']; unset($list[0]); $list
= array_filter($list); sort($list); $pairs = array_column($list, 'value', 'id'); $value = reset($pairs) ?: null; Current way
Solutions
Laravel collections CakePHP collections Arrayy Underscore.php
(ceased) Others
php-map.org
$value = map( $list ) ->push(['id' => '3', 'value' =>
'value3']) ->remove(0) ->filter() ->sort() ->col('value', 'id') ->first(); Using Map
$map[] = ['id' => '3', 'value' => 'value3']; $value =
$map[0]; count($map); foreach($map as $key => value) {} Still possible
More than array
map() new Map() Map::from() Creating maps
map([1, 2, 3]) map(new Map()) map($iterator) map('abc')
Almost all array methods supported Array methods
concat() collapse() duplicates() flat() countBy()
groupBy() Additional methods except() only() pull() take() skip() ...
each() every() nth() pipe() some()
... Accepting closures
$map->each( function( $val, $key ) { echo $key . ':
' . $val; } ); Closure example
concat() every() find() flat() includes()
join() keys() Like Javascript map() pop() push() reduce() reverse() some() ...
Useful methods map([1,2,3])->join(','); // '1,2,3' Map::split('1,2,3'); // map([1,2,3]) map(['a'=>1,'b'=>2])->toUrl(); //
'a=1&b=2' map(['a'=>1,'b'=>2])->toJson(); // '{"a":1,"b":2}'
Fluent interface $map->push( 'value' ) ->remove( 0 ) ->filter() ->sort();
$e = new \RuntimeException('not found'); map([])->first($e); Find or fail
Map::method( 'strrev', function($sep) { return strrev(join($sep, $this->list)); } ); Map::from(['c',
'b', 'a'])->strrev(' > '); // returns 'a > b > c' Custom methods
jQuery style
class MyClass { private $code; private $status = 0; public
function __construct( $code ) { $this->code = $code; } public function setStatus( int $s ) { $this->stat = $s; return $this; } public function getCode() { return $this->code; } } Example class
$objects = Map::from( [ 'a' => new MyClass( 'x' ),
'b' => new MyClass( 'y' ) ] ); Example Map
$result = $objects ->setStatus(1) ->getCode() ->toArray(); Operations on objects
// status of all object is 1 // $result contains:
['a' => 'x', 'b' => 'y'] Result
?
Aimeos php-map.org Twitter: @aimeos facebook.com/Aimeos