lib/BlockCypher/Crypto/Signer.php
public static function signMultiple($hexDataToSign, $privateKey)
    {
        ArgumentArrayValidator::validate($hexDataToSign, 'hexDataToSign');

        $signatures = array();
        foreach ($hexDataToSign as $tosign) {
            $signatures[] = self::sign($tosign, $privateKey);
        }
        return $signatures;
    }
public static function signMultiple($hexDataToSign, $privateKey)
    {
        ArgumentArrayValidator::validate($hexDataToSign, 'hexDataToSign');

        $signatures = array();
        foreach ($hexDataToSign as $tosign) {
            $signatures[] = self::sign($tosign, $privateKey);
        }
        return $signatures;
    }
public static function signMultiple ( $ hexDataToSign , $ privateKey ) { ArgumentArrayValidator :: validate ( $ hexDataToSign , 'hexDataToSign' ) ; $ signatures = array ( ) ; foreach ( $ hexDataToSign as $ tosign ) { $ signatures [ ] = self :: sign ( $ tosign , $ privateKey ) ; } return $ signatures ; }
Sign array of hex data deterministically using deterministic k.

@param string[] $hexDataToSign
@param PrivateKeyInterface|string $privateKey
@return string[]
Sign array of hex data deterministically using deterministic k .