<?php $_POST=['submit'=>'','firstname'=>'legit','lastname'=>'n0tl3g!t']; $errors=[]; foreach($_POST as $key=>$value){ if(in_array($key,['firstname','lastname']) && !ctype_alpha($value)){ $errors[]="$key field contains invalid value: $value"; } } var_export($errors);
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Value for `_results` contains invalid data `array`