filter php array by value using array_filter

I am trying to filter an array which will produce a drill down list.
This array is built from JSON.

My array looks like this

Array
(
[0] => Array
(
[make] => somemake
[model] => somemodel
[variant] => somevariant
[fuel] => somefuel
[vehicle] => somedetailedinfo
)
[1] => Array
(
[make] => somemake
[model] => somemodel1
[variant] => somevariant1
[fuel] => somefuel1
[vehicle] => somedetailedinfo
)
[2] => Array
(
[make] => somemake
[model] => somemodel2
[variant] => somevariant2
[fuel] => somefuel
[vehicle] => somedetailedinfo
)
[3] => Array
(
[make] => somemake1
[model] => somemodel3
[variant] => somevariant3
[fuel] => somefuel1
[vehicle] => somedetailedinfo
)

)


I would like to filter this array by the make $make, which is set by the $_SERVER['QUERY_STRING'].

$make

$_SERVER['QUERY_STRING']

The new array should contain all items with the make $make.

$make

How do I do this using array_filter?

array_filter

1 Answer
1

This is fairly straight-forward. Note that null coalesce (??) is >= 7.0.

??

$make = $_GET['make'] ?? 'Chevy';
$vehicles = [[
'make' => 'Ford',
'model' => 'F-150',
'variant' => '4x4',
'fuel' => 'diesel',
'vehicle' => [range(1,3)],
],[
'make' => 'Ford',
'model' => 'Escort',
'variant' => 'XS',
'fuel' => 'gas',
'vehicle' => [range(1,3)],
],[
'make' => 'Chevy',
'model' => 'Cobalt',
'variant' => 'ES',
'fuel' => 'electric',
'vehicle' => [range(1,3)],
],[
'make' => 'Ford',
'model' => 'Explorer',
'variant' => '2x4',
'fuel' => 'gas',
'vehicle' => [range(1,3)],
],[
'make' => 'Mini',
'model' => 'Cooper',
'variant' => 'eTurbo',
'fuel' => 'electro-diesel',
'vehicle' => [range(1,3)],
],];

print_r(array_filter($vehicles, function($vehicle) use($make)
return $vehicle['make'] === $make;
));


Gives:

Array
(
[2] => Array
(
[make] => Chevy
[model] => Cobalt
[variant] => ES
[fuel] => electric
[vehicle] => Array
(
[0] => Array
(
[0] => 1
[1] => 2
[2] => 3
)
)
)
)


https://3v4l.org/B8T6v

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