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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 reject($items, $func)
{
    return array_values(array_diff($items, array_filter($items, $func)));
}
print_r(reject(['Green', 'Red', 'Black', 'White'], function ($item) {
    return strlen($item) > 4;
}));

?>

Sample Output: 

Array
(
    [0] => Red
)

Flowchart:

Flowchart: Filter the collection using the given callback.

PHP Code Editor:

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Previous: Write a PHP program to mutate the original array to filter out the values specified.
Next: Write a PHP program to return all elements in an given array except for the first one.

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PHP: Tips of the Day

Returns all elements in an array except for the first one

Example:

<?php
function tips_tail($items)
{
  return count($items) > 1 ? array_slice($items, 1) : $items;
}

print_r(tips_tail([1, 5, 7]));
?>

Output:

Array
(
    [0] => 5
    [1] => 7
)