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<?php $row = array ('name'=>'martin','tel'=>null, 'experience'=> 'high','password'=>'','occupation'=>''); $missing_values = array_filter($row, function($value) { return $value == ''; }); $error = []; print_r($missing_values); foreach($missing_values as $k=>$v){ $error[$k] = "$k can't be empty"; } print_r($error);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [tel] => [password] => [occupation] => ) Array ( [tel] => tel can't be empty [password] => password can't be empty [occupation] => occupation can't be empty )

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