Preventing certain characters in first/last name

[Ragonz]

Yesterday we had someone sign up with a last name of ; this caused our product platform to not create an account as it could not create a username with ; in it, is there a way to prevent certain characters being used in the first/last name fields of WHMCS?

[brian!]

11 hours ago, Ragonz said:

Yesterday we had someone sign up with a last name of ; this caused our product platform to not create an account as it could not create a username with ; in it, is there a way to prevent certain characters being used in the first/last name fields of WHMCS?

the usual two ways would be to..

• edit the checkout/register templates and add a html5 pattern to those two fields in either/both templates - should literally be only one line of code per field.

  <input type="text" name="firstname" id="inputFirstName" class="field" placeholder="{$LANG.orderForm.firstName}" value="{$clientsdetails.firstname}" pattern="[a-zA-Z ]+" oninvalid="this.setCustomValidity('Please use valid alphanumeric characters')" oninput="setCustomValidity('')" {if $loggedin} readonly="readonly"{/if} autofocus>

  
  so in the above example, i've coded the error message in English, but you could equally use a language string in that code to ensure the error was shown in the clients language.... for surnames, you will probably have to extend the pattern to use ' and - etc.

• use a ClientDetailsValidation action hook to check the format of those fields and return an error message if applicable.