<?php

ini_set("intl.error_level", E_WARNING);
$tz = IntlTimeZone::createTimeZone('GMT+01:00');
print_r($tz);
$tz = intltz_create_time_zone('GMT+01:00');
print_r($tz);
?>
==DONE==
<?php

ini_set("intl.error_level", E_WARNING);
$tz1 = intltz_create_time_zone('Europe/Lisbon');
$tz2 = intltz_create_time_zone('Europe/Lisbon');
echo "Comparison to self:\n";
var_dump($tz1 == $tz1);
echo "Comparison to equal instance:\n";
var_dump($tz1 == $tz2);
echo "Comparison to equivalent instance:\n";
var_dump($tz1 == intltz_create_time_zone('Portugal'));
echo "Comparison to GMT:\n";
var_dump($tz1 == intltz_get_gmt());
?>
==DONE==