PHP check if any posted vars are empty - form all fields required

Question

Is there a simpler function to something like this   if  isset   POST  Submit           if    POST  login              POST  password              POST  confirm              POST  name              POST  phone              POST  email                    echo  error  all fields are required         else           echo  proceed

User · Answer

I just wrote a quick function to do this. I needed it to handle many forms so I made it so it will accept a string separated by ','.

//function to make sure that all of the required fields of a post are sent. Returns True for error and False for NO error  
//accepts a string that is then parsed by "," into an array. The array is then checked for empty values.
function errorPOSTEmpty($stringOfFields) {
        $error = false;
            if(!empty($stringOfFields)) {
                // Required field names
                $required = explode(',',$stringOfFields);
                // Loop over field names
                foreach($required as $field) {
                  // Make sure each one exists and is not empty
                  if (empty($_POST[$field])) {
                    $error = true;
                    // No need to continue loop if 1 is found.
                    break;
                  }
                }
            }
    return $error;
}

So you can enter this function in your code, and handle errors on a per page basis.

$postError = errorPOSTEmpty('login,password,confirm,name,phone,email');

if ($postError === true) {
  ...error code...
} else {
  ...vars set goto POSTing code...
}

User · Answer

empty and isset should do it   if  isset   POST  submit     exit      vars   array  login    password   confirm    name    email    phone     verified   TRUE  foreach  vars as  v       if  isset   POST  v      empty   POST  v             verified   FALSE         if   verified        error here      exit        process here

User · Answer

Personally I extract the POST array and then have if   login      password  then echo fill out the form

User · Answer

foreach   POST as  key  gt  value        if empty trim  value           echo   key input required of value

User · Answer

I did it like this    missing   array     foreach    POST as  key   gt   value    if   value          array push  missing   key      if  count  missing   gt  0      echo  Required fields found empty       foreach   missing as  k   gt   v    echo  v           else     unset  missing        do your stuff here with the   POST

User · Answer

if  isset    POST  login      amp  amp   strlen    POST  login             valid   POST  login   is set and its value is greater than zero   else       error either   POST  login   is not set or   POST  login   is empty form field

User · Answer

Something like this      Required field names  required   array  login    password    confirm    name    phone    email        Loop over field names  make sure each one exists and is not empty  error   false  foreach  required as  field      if  empty   POST  field           error   true         if   error      echo  All fields are required      else     echo  Proceed

User · Answer

Note   Just be careful if 0 is an acceptable value for a required field  As  Harold1983- mentioned  these are treated as empty in PHP   For these kind of things we should use isset instead of empty    requestArr      POST  data     Requested data   requiredFields     emailType    emailSubtype     missigFields    this- gt checkRequiredFields  requiredFields   requestArr    if   missigFields         errorMsg    Following parmeters are mandatory       missigFields      return  errorMsg        Function  to check whether the required params is exists in the array or not  private function checkRequiredFields  requiredFields   requestArr         missigFields              Loop over the required fields and check whether the value is exist or not in the request params      foreach   requiredFields as  field    enter code here          if  empty  requestArr  field                  array push  missigFields   field                        missigFields   implode        missigFields       return  missigFields

User · Answer

I use my own custom function     public function areNull         if  func num args      0  return false       arguments   func get args        foreach   arguments as  argument           if  is null  argument   return true      endforeach      return false     var   areNull  username    password    etc      I m sure it can easily be changed for you scenario  Basically it returns true if any of the values are NULL  so you could change it to empty or whatever

[php] PHP: check if any posted vars are empty - form: all fields required

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