Ticket #25768: tests.php

$formats = array(
        // day
        'day' => '\d:d | \D:D | \j:j | \l:l | \N:N | \S:S | \w:w | \z:z',
        // week
        'week' => '\W:W',
        // month
        'month' => '\F:F | \m:m | \M:M | \n:n | \t:t',
        // year
        'year' => '\L:L | \o:o | \Y:Y | \y:y',
        // time
        'time' => '\a:a | \A:A | \B:B | \g:g | \G:G | \h:h | \H:H | \i:i | \s:s | \u:u',
        // timezone
        'timezone' => '\e:e | \I:I | \O:O | \P:P | \T:T | \Z:Z',
        // full date/time
        'full_date_time' => '\c:c | \r:r | \U:U',
        // escape test
        'escape' => 'F | \F | \\F | \\\F | \\\\F | \\\\\F | \\\\\\F'
);

$timestamps = array(
        'now local' => current_time('timestamp'),
        'now unix (GMT)' => time(),
);

$outputtemplate = '&nbsp;&nbsp;&nbsp;&nbsp;with %s: %s<br/>';

foreach ( $timestamps as $timestampkey => $timestamp ) {
        echo('<br/>');
        echo(sprintf('------ format timestamp %s (%s) ------</br>',
                $timestamp,
                $timestampkey
        ));
        foreach ( $formats as $formatkey => $format ) {
                echo(sprintf('format %s: %s</br>',
                        $formatkey,
                        $format
                ));
                echo(sprintf($outputtemplate,
                        'date_i18n()',
                        date_i18n($format, $timestamp, false)
                ));
                echo(sprintf($outputtemplate,
                        'date()',
                        date($format, $timestamp)
                ));
                echo(sprintf($outputtemplate,
                        'date_i18n(gmt)',
                        date_i18n($format, $timestamp, true)
                ));
        }
}