$a = array(
array(“title” => “题1”),
array(“title” => “”),
array(“title” => “题2”),
);
a=arrayvalues(arrayfilter(a = array_values(array_filter(a=arrayvalues(arrayfilter(a, function($t) { return KaTeX parse error: Expected 'EOF', got '}' at position 12: t['title'];}̲));
var_dump(a);