1--TEST--
2Test date_format() function : timezone offset
3--FILE--
4<?php
5
6$tz = array("UTC", "Europe/London", "Europe/Berlin", "America/Chicago");
7
8foreach ($tz as $zone) {
9    echo $zone, "\n";
10    date_default_timezone_set($zone);
11
12    $date = date_create("2020-03-10 22:30:41");
13
14    var_dump( date_format($date, "O") );
15    var_dump( date_format($date, "P") );
16    var_dump( date_format($date, "p") );
17}
18
19echo "Z\n";
20$date = date_create("2020-03-10 22:30:41Z");
21
22var_dump( date_format($date, "p") );
23
24?>
25--EXPECT--
26UTC
27string(5) "+0000"
28string(6) "+00:00"
29string(1) "Z"
30Europe/London
31string(5) "+0000"
32string(6) "+00:00"
33string(6) "+00:00"
34Europe/Berlin
35string(5) "+0100"
36string(6) "+01:00"
37string(6) "+01:00"
38America/Chicago
39string(5) "-0500"
40string(6) "-05:00"
41string(6) "-05:00"
42Z
43string(1) "Z"
44