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<?php $input = [ [ 'Standort' => '', 'Letzte Meldung' => '', 'On-/Offline seit' => '04.05.2022 11:03', 'Online' => '', ], [ 'Standort' => 'Schweiz', 'Letzte Meldung' => '', 'On-/Offline seit' => '11.02.2022 14:59', 'Online' => '', ] ]; $keep = []; array_walk_recursive($input, function($v, $k) use(&$keep) { if (strlen($v)) { $keep[$k] = null; } }); var_export( $keep ? array_map(fn($row) => array_intersect_key($row, $keep), $input) : [] );
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => array ( 'Standort' => '', 'On-/Offline seit' => '04.05.2022 11:03', ), 1 => array ( 'Standort' => 'Schweiz', 'On-/Offline seit' => '11.02.2022 14:59', ), )

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