--TEST--
getPreviousSibling() and getNextSibling()
--EXTENSIONS--
tidy
--FILE--
first
third
HTML);
$body = $tidy->body();
function format($str) {
if (is_null($str)) return $str;
return trim($str);
}
foreach ($body->child as $i => $child) {
echo "=== From the perspective of child $i ===\n";
echo "Previous: ";
var_dump(format($child->getPreviousSibling()?->value));
echo "Next: ";
var_dump(format($child->getNextSibling()?->value));
}
echo "=== html element has only the doctype as sibling ===\n";
echo "Previous: ";
var_dump(format($tidy->html()->getPreviousSibling()?->value));
echo "Next: ";
var_dump(format($tidy->html()->getNextSibling()?->value));
?>
--EXPECT--
=== From the perspective of child 0 ===
Previous: NULL
Next: string(15) ""
=== From the perspective of child 1 ===
Previous: string(16) "first
"
Next: string(16) "third
"
=== From the perspective of child 2 ===
Previous: string(15) ""
Next: NULL
=== html element has only the doctype as sibling ===
Previous: string(15) ""
Next: NULL