array filter use key
$my_array = ['foo' => 1, 'hello' => 'world'];
$allowed = ['foo', 'bar'];
$filtered = array_filter(
$my_array,
function ($key) use ($allowed) {
return in_array($key, $allowed);
},
ARRAY_FILTER_USE_KEY
);array filter use key
$my_array = ['foo' => 1, 'hello' => 'world'];
$allowed = ['foo', 'bar'];
$filtered = array_filter(
$my_array,
function ($key) use ($allowed) {
return in_array($key, $allowed);
},
ARRAY_FILTER_USE_KEY
);php array_filter
$array = [1, 2, 3, 4, 5];
$filtered = array_filter($array, function($item) {
return $item != 4; // Return (include) current item if expression is truthy
});
// $filtered = [1, 2, 3, 5]filter value in array php return single value
?php
$data= [
0 => [1, 'test1'],
1 => [2, 'test2'],
2 => [3, 'test3'],
];
$ids = array_map(function($item) {
return $item[0];
}, $data);
var_dump($ids);array_filter php
$var = [
'first' => 'one',
'second' => null,
'third' => 'three',
];
$filteredArray = array_filter($var);
// output: ['first'=>'one,'third'=>'three']Copyright © 2021 Codeinu
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