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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 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.15, 8.5.0
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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