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<?php $input = [ "Lincoln Crown", "Crown Court", "go holiday", "house fire", "John Hinton", "Hinton Jailed" ]; $output = []; $blacklist = []; foreach ($input as $string) { $words = explode(' ', $string); foreach ($words as $word) { if (in_array($word, $blacklist)) { continue 2; } } array_push($blacklist, ...$words); $output[] = $string; } var_export($blacklist); echo "\n"; var_export($output);
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => 'Lincoln', 1 => 'Crown', 2 => 'go', 3 => 'holiday', 4 => 'house', 5 => 'fire', 6 => 'John', 7 => 'Hinton', ) array ( 0 => 'Lincoln Crown', 1 => 'go holiday', 2 => 'house fire', 3 => 'John Hinton', )

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