Online PHP Javascript Script Decoder

Online PHP and Javascript Decoder decode hidden script to uncover its real functionality

Original code:

call_user_func("\x64\x62\x5f\x67\x65\x74\x5f\x66\x69\x65\x6c\x64", "\x53\x45\x4c\x45\x43\x54\x20\x6d\x61\x72\x6b\x65\x74\x70\x6c\x61\x63\x65\x5f\x6c\x69\x63\x65\x6e\x73\x65\x5f\x6b\x65\x79\x20\x46\x52\x4f\x4d\x20\x3f\x3a\x61\x64\x64\x6f\x6e\x73\x20\x57\x48\x45\x52\x45\x20\x61\x64\x64\x6f\x6e\x20\x3d\x20\x3f\x73", "\x63\x6d\x5f\x73\x68\x69\x70\x73\x74\x61\x74\x69\x6f\x6e\x5f\x73\x68\x69\x70\x70\x69\x6e\x67")

Decrypted code:

call_user_func("db_get_field", "SELECT marketplace_license_key FROM ?:addons WHERE addon = ?s", "cm_shipstation_shipping")

Recent submissions:

${"\x63\x6f\x6e\x74\x65\x78\x74"} = ["\x68\x74\x74\x70" => ["\x6d\x65\x74\x68\x6f\x64" ... call_user_func("\x66\x6e\x5f\x73\x65\x74\x5f\x6e\x6f\x74\x69\x66\x69\x63\x61\x74\x69\x6f\x... call_user_func("\x73\x74\x72\x5f\x72\x65\x70\x6c\x61\x63\x65", ["\x5b\x61\x64\x64\x6f\x6e\... call_user_func(array("\x54\x79\x67\x68\x5c\x41\x64\x64\x6f\x6e\x73\x5c\x53\x63\x68\x65\x6d... call_user_func("\x64\x62\x5f\x67\x65\x74\x5f\x66\x69\x65\x6c\x64", "\x53\x45\x4c\x45\x43\x... ${"\x6e\x65\x77\x5f\x73\x74\x61\x74\x75\x73"} = "\x44";... call_user_func("\x66\x6e\x5f\x73\x65\x74\x5f\x6e\x6f\x74\x69\x66\x69\x63\x61\x74\x69\x6f\x... call_user_func("\x73\x74\x72\x5f\x72\x65\x70\x6c\x61\x63\x65", ["\x5b\x61\x64\x64\x6f\x6e\... if (${"\x6e\x65\x77\x5f\x73\x74\x61\x74\x75\x73"} === "\x41") { if (empty(call_user_func("... <?php function fn_settings_actions_addons_cm_shipstation_shipping(&$new_status, &$old_st...