在PHP中将数组附加到数组，然后打印内容

Question

How would I go about creating a dictionary with values set to arrays in PHP?

Here's my pseudo:

$items = array();
array_push($items, $itemone => array("one", "two"));
array_push($items, $itemtwo => array("three", "four"));
array_push($items, $itemone => array("five", "six")); #overwrites existing

print $items[$itemone[0]] # prints five
print $items[$itemtwo[1]] # prints four

Answer 1

$items = array();

$items[] = array('one', 'two');
$items[] = array('three', 'four');
$items[] = array('five', 'six');

Using the [] syntax acts like a push but does not incur the overhead of a function call, see the PHP doc.

You can access $items[0], $items[1], etc...

echo $items[0][1]; // prints two

The array would look like:

[ ['one', 'two'], ['three', 'four'], ['five', 'six'] ]

If for some reason, you want to use associative keys you could do this:

$items = array();

$items['item-one'] = array('one', 'two');
$items['item-two'] = array('three', 'four');
$items['item-three'] = array('five', 'six');

Then the array would look like this:

[ 'item-one' => ['one', 'two'], 'item-two' => ['three', 'four'], 'item-three' => ['five', 'six'] ]

If I wanted to print three, then I'd do this:

echo $items['item-two'][0]; // prints three