How do I append a value to an array within an array in PHP?

Garry Pettet

Given this PHP array:

$options['systems'] = array(1, 2, 3)

How would I append the value 4 to the $systems array within the $options array?

user5066478

You could use array_push to push additional items like so:

array_push($options['systems'], 4);

Or the shorthand version:

$options['systems'][] = 4;

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edited at2021-04-16

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