php-laravelHow can I filter an array in a Laravel application using PHP?

In order to filter an array in a Laravel application using PHP, you can use the array_filter function. This function takes a callback function as its first argument, which is used to determine whether a value should be included in the resulting array or not.

$array = [1, 2, 3, 4, 5];

$filteredArray = array_filter($array, function ($value) {
    return $value % 2 === 0;
});

print_r($filteredArray);

Output example

Array
(
    [1] => 2
    [3] => 4
)

The code above filters out all odd numbers from the $array and stores the resulting array in the $filteredArray variable. The callback function checks each element of the array to see if it is divisible by 2 ($value % 2 === 0) and returns true if it is, or false otherwise.

The array_filter function can also be used to filter an associative array, where the key-value pairs are preserved.

$assocArray = [
    'a' => 1,
    'b' => 2,
    'c' => 3,
    'd' => 4,
    'e' => 5
];

$filteredAssocArray = array_filter($assocArray, function ($value) {
    return $value % 2 === 0;
});

print_r($filteredAssocArray);

Output example

Array
(
    [b] => 2
    [d] => 4
)

The code above filters out all odd numbers from the $assocArray and stores the resulting array in the $filteredAssocArray variable.

Helpful links

• PHP array_filter() Function
• Laravel Arrays & Objects

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