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

0 vote212 views1 answer
Lity in Wordpress
PHP
0 vote221 views1 answer
Php check if variable is resource
PHP
0 vote241 views1 answer
Get page name wp
PHP Wordpress
46 votes215 views6 answers
Php for
PHP
0 vote218 views1 answer
Laravel simplexmlelement not found
PHP
2 votes218 views5 answers
Laravel drop table migration
PHP
1 vote270 views1 answer
Use of segment in laravel 8
PHP Laravel
1 vote277 views1 answer
Symfony call another controller
PHP Symfony
0 vote224 views2 answers
Php.ini path
PHP
0 vote239 views6 answers
The requested URL was not found on this server. Apache/2.4.47 (Win64) OpenSSL/1.1.1k PHP/7.3.28 Server at localhost Port 80 error in laravel
PHP Laravel