validate_fields, some suggestions

This suggestion is very import for all Webmaster:

Check USERNAME FIELD

Code:

function check_username($username, $field, $val, $type = "username", $required = "y"){

if($username == ""){
      $this->messages[] = $this->error_text(1, $field); // emputy
return false;
      }

if(strlen($username) < 5 ){
$this->messages[] = $this->error_text(23, $field); // too sort
return false;
      }

if(!eregi("[a-z]+[0-9]", $username)){
return true;
}else{
$this->messages[] = $this->error_text(22, $field); // not alphanumeric
return false;
}
return true;
}

Check PASSWORD FIELD

Code:

function check_password($password, $field, $val, $type = "password", $required = "y"){

if($password == ""){
      $this->messages[] = $this->error_text(1, $field); // vazio
return false;
      }

if(strlen($password) < 8 ){
$this->messages[] = $this->error_text(19, $field); // too sort
return false;
      }

if(eregi("[a-z]+[0-9]", $password)){
return true;
}else{
$this->messages[] = $this->error_text(20, $field); // alphanumeric
return false;
}
return true;
}

Check if USERNAME OR EMAIL IS IN DATABASE

Code:

function check_datacheck($datacheck, $val, $table, $fieldy, $required = "y"){

global $db;
$field = $val;

if(!get_magic_quotes_gpc()) {
      $datacheck = addslashes($datacheck);
      }
/* $datacheck = valor do campo. */
/* Verify that user is in database */
      $q = "SELECT ".$fieldy." FROM ".$table." WHERE ".$fieldy." = '$datacheck'";
      $result = $db->get_results($q);
      if($db->num_rows < 1){
         return true; //Indicates username is in database
      }else{
$this->messages[] = $this->error_text(21, $field);
return false;
}
}

Check for Brazilian Date dd/mm/aaa

Code:

function check_date($date, $field, $version = "us", $req = "n") {
if ($date == "") {
if ($req == "y") {
$this->messages[] = $this->error_text(1, $field);
return false;
} else {
return true;
}
} else {
$date_parts = explode("/", $date);
$month = $date_parts[1];

if ($version == "pt") {
$pattern = '/^([1-9]|0[1-9]|[12][1-9]|3[01])\D([1-9]|0[1-9]|1[012])\D(19[0-9][0-9]|20[0-9][0-9])$/'; // Brazilian pattern
$day = $date_parts[0];
$year = $date_parts[2];
} else {
$pattern = "/^(19|20)[0-9]{2}[-](0?[1-9]|1[0-2])[-](0?[1-9]|[1-2][0-9]|3[0-1])$/";
$day = $date_parts[2];
$year = $date_parts[0];
}
if (preg_match($pattern, $date) && checkdate(intval($month), intval($day), $year)) {
return true;
} else {
$this->messages[] = $this->error_text(10, $field);
return false;

}
}
}

Sort by $fieldname

Very thanks for this great script.

This is a exemple of previous mentioned:

http://www.screentools.com.br/validate/index.php

[Free WordPress Themes]

@ortlieb,

do you know this class? http://www.finalwebsites.com/snippets.php?id=10

 look, this is a general form field validation class, a user name or password is just a custom text field.

the function that is missing is a universal type validated by a custom regular expression,

in your case its just a regular text field with a length value.

what special with this brazilian date? the slashes?

I Love your validate_fields, I use and is very well...

I think about use in anothers forms with more possibility "Like a global Validate" without access_user_class.

In Brazilian date is used the slashes
I try $version == "eu" and not work for me.

Thanks

This PHP script is nice to use, but would be even better if you could put the reason of a non-valid field. The one I have in head is the number field, that would be nice to tell the user that the field is too long or whatever reason you might have in mind...
But for the rest of it, it's seems to work great!!!

Thanks

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