if ($this->allow_compare == true) {
if ($v1 > $v2) {
return 1;
} else {
if ($v1 < $v2) {
return -1;
} else {
return 0;
}
}
} else {
throw new Exception('Compare exception');
}
}
}
$heap = new myHeap();
$heap->insert(1);
$heap->insert(2);
$heap->insert(3);
$heap->insert(4);
$heap->allow_compare = false;
try {
$heap->extract();
} catch (Exception $e) {
echo "Compare Exception: " . $e->getMessage() . PHP_EOL;
}
try {
$heap->top();
} catch (Exception $e) {
echo "Corruption Exception: " . $e->getMessage() . PHP_EOL;
}
