Correct return value for PHP internal functions on failure

src/Reflection/SignatureMap/functionMap.php

@@ -489,7 +489,7 @@
 'bzerror' => ['array', 'bz'=>'resource'],
 'bzerrstr' => ['string', 'bz'=>'resource'],
 'bzflush' => ['bool', 'bz'=>'resource'],
-'bzopen' => ['resource', 'file'=>'string|resource', 'mode'=>'string'],
+'bzopen' => ['resource|false', 'file'=>'string|resource', 'mode'=>'string'],
 'bzread' => ['string', 'bz'=>'resource', 'length='=>'int'],
 'bzwrite' => ['int', 'bz'=>'resource', 'data'=>'string', 'length='=>'int'],
 'CachingIterator::__construct' => ['void', 'it'=>'iterator', 'flags='=>''],
@@ -1807,7 +1807,7 @@
 'dgettext' => ['string', 'domain_name'=>'string', 'msgid'=>'string'],
 'dio_close' => ['void', 'fd'=>'resource'],
 'dio_fcntl' => ['mixed', 'fd'=>'resource', 'cmd'=>'int', 'args='=>'mixed'],
-'dio_open' => ['resource', 'filename'=>'string', 'flags'=>'int', 'mode='=>'int'],
+'dio_open' => ['resource|false', 'filename'=>'string', 'flags'=>'int', 'mode='=>'int'],
 'dio_read' => ['string', 'fd'=>'resource', 'len='=>'int'],
 'dio_seek' => ['int', 'fd'=>'resource', 'pos'=>'int', 'whence='=>'int'],
 'dio_stat' => ['array|null', 'fd'=>'resource'],
@@ -2638,7 +2638,7 @@
 'exit' => ['', 'status'=>'string|int'],
 'exp' => ['float', 'number'=>'float'],
 'expect_expectl' => ['int', 'expect'=>'resource', 'cases'=>'array', 'match='=>'array'],
-'expect_popen' => ['resource', 'command'=>'string'],
+'expect_popen' => ['resource|false', 'command'=>'string'],
 'explode' => ['array<int,string>|false', 'separator'=>'string', 'str'=>'string', 'limit='=>'int'],
 'expm1' => ['float', 'number'=>'float'],
 'extension_loaded' => ['bool', 'extension_name'=>'string'],
@@ -2650,7 +2650,7 @@
 'fam_monitor_directory' => ['resource', 'fam'=>'resource', 'dirname'=>'string'],
 'fam_monitor_file' => ['resource', 'fam'=>'resource', 'filename'=>'string'],
 'fam_next_event' => ['array', 'fam'=>'resource'],
-'fam_open' => ['resource', 'appname='=>'string'],
+'fam_open' => ['resource|false', 'appname='=>'string'],
 'fam_pending' => ['int', 'fam'=>'resource'],
 'fam_resume_monitor' => ['bool', 'fam'=>'resource', 'fam_monitor'=>'resource'],
 'fam_suspend_monitor' => ['bool', 'fam'=>'resource', 'fam_monitor'=>'resource'],
@@ -2879,7 +2879,7 @@
 'fdf_get_version' => ['string', 'fdf_document='=>'resource'],
 'fdf_header' => ['void'],
 'fdf_next_field_name' => ['string', 'fdf_document'=>'resource', 'fieldname='=>'string'],
-'fdf_open' => ['resource', 'filename'=>'string'],
+'fdf_open' => ['resource|false', 'filename'=>'string'],
 'fdf_open_string' => ['resource', 'fdf_data'=>'string'],
 'fdf_remove_item' => ['bool', 'fdf_document'=>'resource', 'fieldname'=>'string', 'item'=>'int'],
 'fdf_save' => ['bool', 'fdf_document'=>'resource', 'filename='=>'string'],
@@ -4404,7 +4404,7 @@
 'ibase_blob_import' => ['string', 'link_identifier'=>'', 'file_handle'=>''],
 'ibase_blob_info' => ['array', 'link_identifier'=>'', 'blob_id'=>'string'],
 'ibase_blob_info\'1' => ['array', 'blob_id'=>'string'],
-'ibase_blob_open' => ['resource', 'link_identifier'=>'', 'blob_id'=>'string'],
+'ibase_blob_open' => ['resource|false', 'link_identifier'=>'', 'blob_id'=>'string'],
 'ibase_blob_open\'1' => ['resource', 'blob_id'=>'string'],
 'ibase_close' => ['bool', 'link_identifier='=>'resource'],
 'ibase_commit' => ['bool', 'link_identifier='=>'resource'],
@@ -6398,7 +6398,7 @@
 'mcrypt_module_is_block_algorithm' => ['bool', 'algorithm'=>'string', 'lib_dir='=>'string'],
 'mcrypt_module_is_block_algorithm_mode' => ['bool', 'mode'=>'string', 'lib_dir='=>'string'],
 'mcrypt_module_is_block_mode' => ['bool', 'mode'=>'string', 'lib_dir='=>'string'],
-'mcrypt_module_open' => ['resource', 'cipher'=>'string', 'cipher_directory'=>'string', 'mode'=>'string', 'mode_directory'=>'string'],
+'mcrypt_module_open' => ['resource|false', 'cipher'=>'string', 'cipher_directory'=>'string', 'mode'=>'string', 'mode_directory'=>'string'],
 'mcrypt_module_self_test' => ['bool', 'algorithm'=>'string', 'lib_dir='=>'string'],
 'mcrypt_ofb' => ['string', 'cipher'=>'string', 'key'=>'string', 'data'=>'string', 'mode'=>'int', 'iv='=>'string'],
 'md5' => ['string', 'str'=>'string', 'raw_output='=>'bool'],
@@ -8061,7 +8061,7 @@
 'openal_context_process' => ['bool', 'context'=>'resource'],
 'openal_context_suspend' => ['bool', 'context'=>'resource'],
 'openal_device_close' => ['bool', 'device'=>'resource'],
-'openal_device_open' => ['resource', 'device_desc='=>'string'],
+'openal_device_open' => ['resource|false', 'device_desc='=>'string'],
 'openal_listener_get' => ['mixed', 'property'=>'int'],
 'openal_listener_set' => ['bool', 'property'=>'int', 'setting'=>'mixed'],
 'openal_source_create' => ['resource'],
@@ -8497,7 +8497,7 @@
 'PDOStatement::setFetchMode\'1' => ['bool', 'fetch_column'=>'int', 'colno'=>'int'],
 'PDOStatement::setFetchMode\'2' => ['bool', 'fetch_class'=>'int', 'classname'=>'string', 'ctorargs'=>'array'],
 'PDOStatement::setFetchMode\'3' => ['bool', 'fetch_into'=>'int', 'object'=>'object'],
-'pfsockopen' => ['resource', 'hostname'=>'string', 'port='=>'int', '&w_errno='=>'int', '&w_errstr='=>'string', 'timeout='=>'float'],
+'pfsockopen' => ['resource|false', 'hostname'=>'string', 'port='=>'int', '&w_errno='=>'int', '&w_errstr='=>'string', 'timeout='=>'float'],
 'pg_affected_rows' => ['int', 'result'=>'resource'],
 'pg_cancel_query' => ['bool', 'connection'=>'resource'],
 'pg_client_encoding' => ['string', 'connection='=>'resource'],
@@ -9032,9 +9032,9 @@
 'quoted_printable_encode' => ['string', 'str'=>'string'],
 'quotemeta' => ['string', 'str'=>'string'],
 'rad2deg' => ['float', 'number'=>'float'],
-'radius_acct_open' => ['resource'],
+'radius_acct_open' => ['resource|false'],
 'radius_add_server' => ['bool', 'radius_handle'=>'resource', 'hostname'=>'string', 'port'=>'int', 'secret'=>'string', 'timeout'=>'int', 'max_tries'=>'int'],
-'radius_auth_open' => ['resource'],
+'radius_auth_open' => ['resource|false'],
 'radius_close' => ['bool', 'radius_handle'=>'resource'],
 'radius_config' => ['bool', 'radius_handle'=>'resource', 'file'=>'string'],
 'radius_create_request' => ['bool', 'radius_handle'=>'resource', 'type'=>'int'],
@@ -9898,7 +9898,7 @@
 'rpm_close' => ['bool', 'rpmr'=>'resource'],
 'rpm_get_tag' => ['mixed', 'rpmr'=>'resource', 'tagnum'=>'int'],
 'rpm_is_valid' => ['bool', 'filename'=>'string'],
-'rpm_open' => ['resource', 'filename'=>'string'],
+'rpm_open' => ['resource|false', 'filename'=>'string'],
 'rpm_version' => ['string'],
 'rrd_create' => ['bool', 'filename'=>'string', 'options'=>'array'],
 'rrd_error' => ['string'],
@@ -11465,8 +11465,8 @@
 'sqlite_next' => ['bool', 'result'=>''],
 'sqlite_num_fields' => ['int', 'result'=>''],
 'sqlite_num_rows' => ['int', 'result'=>''],
-'sqlite_open' => ['resource', 'filename'=>'string', 'mode='=>'int', 'error_message='=>'string'],
-'sqlite_popen' => ['resource', 'filename'=>'string', 'mode='=>'int', 'error_message='=>'string'],
+'sqlite_open' => ['resource|false', 'filename'=>'string', 'mode='=>'int', 'error_message='=>'string'],
+'sqlite_popen' => ['resource|false', 'filename'=>'string', 'mode='=>'int', 'error_message='=>'string'],
 'sqlite_prev' => ['bool', 'result'=>''],
 'sqlite_query' => ['SQLiteResult', 'dbhandle'=>'', 'query'=>'string', 'result_type='=>'int', 'error_msg='=>'string'],
 'sqlite_rewind' => ['bool', 'result'=>''],