How to echo the first key value of an associative array without knowing the name of the key [duplicate]

Question

print_r of an array gives me this output:

Array (
    [id-1.txt] => uploads/id-1.jpg
    [id-2.txt] => uploads/id-2.jpg
    [id-3.txt] => uploads/id-3.jpg
)

How can i echo always the first key value ( so uploads/id-1.jpg in this case) without knowing the name of the key? Because the name of the keys are changing everytime...

So: catch always the first value which belongs to the first key, whatever the name of the key is...

Reading the question OP wants the first value, not the literal first key. — Progrock
– Progrock, Commented Mar 20, 2020 at 22:02
This is probably a more apt dupe, but it's very noisy! stackoverflow.com/questions/1921421/… — Progrock
– Progrock, Commented Mar 20, 2020 at 23:20

Progrock · Accepted Answer · 2020-03-20 22:02:57Z

1

<?php
$data =
[
    'id-1.txt' => 'uploads/id-1.jpg',
    'id-2.txt' => 'uploads/id-2.jpg',
    'id-3.txt' => 'uploads/id-3.jpg'
];

$copy = $data;

echo reset($copy);
unset($copy);

Output:

uploads/id-1.jpg

Here using a copy for no side effects.

edited Mar 20, 2020 at 22:02

answered Mar 20, 2020 at 21:56

Progrock

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2 Comments

Progrock Over a year ago

current($copy) will do if it's a fresh copy.

Progrock Over a year ago

No, when you copy the array you'll copy the pointer. So reset is a better choice here.

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