PHP Exercises: Filter the collection using the given callback

PHP: Exercise-89 with Solution

Write a PHP program to filter the collection using the given callback.

Sample Solution:

PHP Code:

<?php
// Licence: https://bit.ly/2CFA5XY

// Function definition for 'reject' that takes an array of items and a filtering function as parameters
function reject($items, $func)
{
    // Use 'array_filter' to filter the items based on the given function
    // Use 'array_diff' to get the items that are not present in the filtered array
    // Use 'array_values' to reindex the resulting array
    return array_values(array_diff($items, array_filter($items, $func)));
}

// Call 'reject' with an array and an anonymous function filtering items with a length greater than 4, then display the result using 'print_r'
print_r(reject(['Green', 'Red', 'Black', 'White'], function ($item) {
    return strlen($item) > 4;
}));

?>

Sample Output:

Array
(
    [0] => Red
)

Flowchart:

PHP Code Editor:

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