Online PHP editor | refs for cFdds

<?php $books_sorted = [ ["title" => "In Search of Lost Time", 'others' => 'unuseful1'], ["title" => "Don Quixote", 'others' => 'unuseful2'], ["title" => "The Great Gatsby", 'others' => 'unuseful3'] ]; $books_available = [ ["title" => "Moby Dick", 'others' => 'unuseful4'], ["title" => "In Search of Lost Time", 'others' => 'unuseful5'], ["title" => "The Great Gatsby", 'others' => 'unuseful6'], ["title" => "War and Peace", 'others' => 'unuseful7'] ]; var_export( array_merge( array_uintersect( $books_sorted, $books_available, fn($a, $b) => $a['title'] <=> $b['title'] ), array_udiff( $books_available, $books_sorted, fn($a, $b) => $a['title'] <=> $b['title'] ), ) );