how to check multiple $_POST variable for existence using isset()?

Question

I need to check if $_POST variables exist using single statement isset.

if (isset$_POST[\'name\']  &&  isset$_POST[\'number\']  &&am         


        

Answer 1

$variables = array('name', 'number', 'address');

foreach($variables as $variable_name){

   if(isset($_POST[$variable_name])){
      echo 'Variable: '.$variable_name.' is set
';
   }else{
      echo 'Variable: '.$variable_name.' is NOT set
';
   }

}

Or, Iterate through each $_POST key/pair

foreach($_POST as $key => $value){

   if(isset($value)){
      echo 'Variable: '.$key.' is set to '.$value.'
';
   }else{
      echo 'Variable: '.$key.' is NOT set
';
   }

}

The last way is probably your easiest way - if any of your $_POST variables change you don't need to update an array with the new names.