在二维数组中，删除某元素的值为空的数据

$a = array(
array(“title” => “题1”),
array(“title” => “”),
array(“title” => “题2”),
);
$a=arra{y}_{v}alues(arra{y}_{f}ilter($a, function($t) { return KaTeX parse error: Expected 'EOF', got '}' at position 12: t['title'];}̲)); var_dump(a);