How Can I Implode an Array with Commas, Inserting \'and\' Before the Last Item?

Implode an Array with Commas, Adding "And" Before the Last Item

Question:

You have an array of items and want to convert it into a string, but with "and" added before the last item instead of a comma. For example:

1 => coke, 2 => sprite, 3 => fanta

should become:

coke, sprite and fanta

Answer:

One way to achieve this is using the following code:

echo join(' and ', array_filter(array_merge(array(join(', ', array_slice($array, 0, -1))), array_slice($array, -1)), 'strlen'));

Or, for increased verbosity:

$last  = array_slice($array, -1);
$first = join(', ', array_slice($array, 0, -1));
$both  = array_filter(array_merge(array($first), $last), 'strlen');
echo join(' and ', $both);

This approach handles all cases, including arrays with no, one, or two items, without the need for additional if-else statements.

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