<?php $numbers = [ ['number' => 3], ['number' => 4], ['number' => 6], ['number' => 9], ]; $keyValues = [ ['key' => 1, 'val' => 'one'], ['key' => 3, 'val' => 'three'], ['key' => 5, 'val' => 'five'], ['key' => 7, 'val' => 'seven'], ['key' => 9, 'val' => 'nine'], ]; var_export( array_uintersect( $keyValues, $numbers, fn($a, $b) => ($a['number'] ?? $a['key']) <=> ($b['number'] ?? $b['key']) ) );
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