blocktrail / blocktrail-sdk-php

            throw new \InvalidArgumentException("Can't store Primary Mnemonic on server without a passphrase");

        }

        if ($primaryPrivateKey) {

            if (is_string($primaryPrivateKey)) {

                $primaryPrivateKey = [$primaryPrivateKey, "m"];

            }

        } else {

            $primaryPrivateKey = BIP32::master_key(BIP39::mnemonicToSeedHex($primaryMnemonic, $password), 'bitcoin', $this->testnet);

        }

        if (!$storePrimaryMnemonic) {

            $primaryMnemonic = false;

            $backupPublicKey = $options['backup_public_key'];

        }

        if ($backupPublicKey) {

            if (is_string($backupPublicKey)) {

                $backupPublicKey = [$backupPublicKey, "m"];

            }

        } else {

            $backupPublicKey = BIP32::extended_private_to_public(BIP32::master_key(BIP39::mnemonicToSeedHex($backupMnemonic, ""), 'bitcoin', $this->testnet));

        }

        // create a checksum of our private key which we'll later use to verify we used the right password

        $checksum = BIP32::key_to_address($primaryPrivateKey[0]);

            throw new \InvalidArgumentException("Can't init wallet with Primary Mnemonic without a passphrase");

        }

        if ($primaryPrivateKey) {

            if (is_string($primaryPrivateKey)) {

                $primaryPrivateKey = [$primaryPrivateKey, "m"];

            }

        } else {

            // convert the mnemonic to a seed using BIP39 standard

            $primarySeed = BIP39::mnemonicToSeedHex($primaryMnemonic, $password);

            // create BIP32 private key from the seed

            $primaryPrivateKey = BIP32::master_key($primarySeed, $this->network, $this->testnet);

        }

        $this->primaryPrivateKey = BIP32Key::create($primaryPrivateKey);