Protection des variables & expression régulière

[Plume]

Non, mais c'était juste pour la question xD

En réalité, je fais comme ça :

Code PHP :

<?php

    /**

     * Verify the validity of the email submited

     * @param string $mailSubmited

     * @return bool Return FALSE if an error is occured; TRUE if not.

     */

    function checkMail( string $mailSubmited )

    {

        if( ereg('^[-!#$%&\'*+\\./0-9=?A-Z^_`a-z{|}~]+' .

                '@' .

                '[-!#$%&\'*+\\/0-9=?A-Z^_`a-z{|}~]+\.' .

                '[-!#$%&\'*+\\./0-9=?A-Z^_`a-z{|}~]+$' ,

                $mailSubmited ) )

        {

            $aErrors[] = REGISTRATION_MAIL_ERROR;

            return FALSE;

        }



        $sqlInstance = Factory::Instanciate( 'MySQLDatabase' , 'include/configDB.php' );

        $mailSubmited = $this -> parseVariables( $mailSubmited );



        $sQuery = 'SELECT id_players FROM ' . TABLE_PLAYERS . ' WHERE email = \'' . $mailSubmited . '\'';

        $rQuery = $sqlInstance -> executeRequest( $sQuery );



        $sqlResultInstance = Factory::Instanciate( 'MySQLResult' , $rQuery );

        if( $sqlResultInstance -> numberRows() === 1 )

        {

            $aErrors[] = REGISTRATION_MAIL_ERROR2;

            return FALSE;

        }

        else

            return TRUE;

    }

?>