Array_filter php

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
);

Source: stackoverflow.com

Php filter array

$numbers = [-2, 4, -6, 8, 10];

function isPositive($number)
{
  return $number > 0;
}

$filteredArray = array_filter($numbers, "isPositive");

Php array filter

<?php

$arr = ['a' => 1, 'b' => 2, 'c' => 3, 'd' => 4];

var_dump(array_filter($arr, function($k) {
    return $k == 'b';
}, ARRAY_FILTER_USE_KEY));

var_dump(array_filter($arr, function($v, $k) {
    return $k == 'b' || $v == 4;
}, ARRAY_FILTER_USE_BOTH));
?>

Source: php.net

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]

Source: php.net

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);

-2

Array_filter php

$var = [
  'first' => 'one',
  'second' => null,
  'third' => 'three',
];


$filteredArray = array_filter($var);
// output: ['first'=>'one,'third'=>'three']

-2

Similar codes

1 vote273 views1 answer
Laravel artisan call with confirm
PHP Laravel
-2 votes261 views1 answer
Create multidimensional array php for loop
PHP
0 vote254 views1 answer
Php git pull webhook
PHP
0 vote265 views1 answer
Laravel model insert multiple
PHP Laravel
0 vote237 views1 answer
Merge Cell phpoffice phpexcel
PHP
0 vote417 views2 answers
Laravel collection remove duplicates
PHP
0 vote271 views1 answer
Install phpstorm in ubuntu stable
PHP
2 votes275 views1 answer
Josn header php
PHP
0 vote259 views2 answers
Get taxonomies
PHP
0 vote292 views1 answer
Show selected value in dropdown laravel
PHP Laravel