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<?php
function array_display($array, $pre=FALSE) {
$tag = $pre ? 'pre' : 'p';
printf("<%s>%s</%s>\n", $tag, var_export($array, TRUE), $tag);
}
$arr = array(2, 'two', 0, 'NULL', NULL, 'FALSE', FALSE, 'empty', '');
$copy = array_filter($arr);
$reindexed = array_values($copy);
array_display($arr, TRUE);
print '<p>Filtered:</p>';
array_display($copy, TRUE);
print '<p>Filtered and reindexed:</p>';
array_display($reindexed, TRUE);
?>
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