doti3/bar/src/date.php

#!/usr/bin/env php
<?php

require __DIR__.'/base/block.php';

$format = $argv[1] ?? 'd/m/Y';

$fullText = pspan(emoji(0xf073).' '.date($format), color('date'), '#444').' ';

if (getenv('BLOCK_BUTTON') === '1') {
    $command = 'export DISPLAY=:0; gnome-calendar';
    pclose(popen($command, 'r'));
}

echo block(
    'date',
    [
        'full_text' => $fullText,
        'separator' => false,
        'separator_block_width' => 0,
    ]
);