validate fields with only letters

rrzavaleta

Hi I need to validate fields in the editor that only allow letters , I tried something like this

public static function sololetras ( $val, $data, $opts, $host ) {
        $cfg = Validate::_extend( $opts, null, array(
            'message' => "Este campo solo permite letras"
        ) );

        $common = Validate::_common( $val, $cfg );
        if ( $common !== null ) {
            return $common;
        }
        return ! ereg('[^A-Za-z]', $val ) ?
            $cfg['message'] :
            true;
            
    }

but without results , I hope can help

allan

Aside from ereg being deprecated in PHP 5.3 ( http://php.net/manual/en/function.ereg.php ) that looks like it should work. Have you added debugging code to it to see where it is going wrong?

Allan

rrzavaleta

Hi allan , I just want to share how you can validate fields to allow only letters .
Perhaps there is another way , but this is how I fixed.

In the file add the following function Validate.php

public static function sololetras ( $val, $data, $opts, $host ) {
        $cfg = Validate::_extend( $opts, null, array(
            'message' => "Este campo solo permite letras"
        ) );
        

        $common = Validate::_common( $val, $cfg );
        if ( $common !== null  ) {
            return $common;
        }
        
        if( is_numeric ($val ))
            {
            return $cfg['message'];
            }
            else {
            $permitidos = "abcdefghijklmnñopqrstuvwxyzABCDEFGHIJKLMNÑOPQRSTUVWXYZ ";
              for ($i=0; $i<strlen($val); $i++){    
      if (strpos($permitidos, substr($val,$i,1))===false){
                return $cfg['message'];
      }
   }
    
            return true;
            }

        
    }

allan

Thanks for sharing your solution! Using a regular expression would probably be more efficient, but if it works, then that is great!

Allan