List of Resource Types

The following is a list of functions which create, use or destroy PHP resources. The function is_resource() can be used to determine if a variable is a resource and get_resource_type() will return the type of resource it is.

Resource Types

Resource Type Name	Created By	Used By	Destroyed By	Definition
AddressInfo	socket_addrinfo_lookup()	socket_addrinfo_bind(), socket_addrinfo_connect(), socket_addrinfo_explain(),	None	AddressInfo (sockets extension)
bzip2	bzopen()	bzerrno(), bzerror(), bzerrstr(), bzflush(), bzread(), bzwrite()	bzclose()	Bzip2 file
cubrid connection	cubrid_connect() cubrid_connect_with_url()	cubrid_col_get() cubrid_col_size() cubrid_commit() cubrid_drop() cubrid_execute() cubrid_get_autocommit() cubrid_get_charset() cubrid_get_class_name() cubrid_get_db_parameter() cubrid_get_server_info() cubrid_get() cubrid_insert_id() cubrid_is_instance() cubrid_lob_export() cubrid_lob_get() cubrid_lob_send() cubrid_lock_read() cubrid_lock_write() cubrid_prepare() cubrid_put() cubrid_rollback() cubrid_schema() cubrid_seq_drop() cubrid_seq_insert() cubrid_seq_put() cubrid_set_add() cubrid_set_autocommit() cubrid_set_db_parameter() cubrid_set_drop() cubrid_affected_rows() cubrid_client_encoding() cubrid_errno() cubrid_error() cubrid_list_dbs() cubrid_ping() cubrid_query() cubrid_real_escape_string()	cubrid_close() cubrid_disconnect()	Connection to CUBRID database
persistent cubrid connection	cubrid_pconnect() cubrid_pconnect_with_url()	cubrid_col_get() cubrid_col_size() cubrid_commit() cubrid_drop() cubrid_execute() cubrid_get_autocommit() cubrid_get_charset() cubrid_get_class_name() cubrid_get_db_parameter() cubrid_get_server_info() cubrid_get() cubrid_insert_id() cubrid_is_instance() cubrid_lob_export() cubrid_lob_get() cubrid_lob_send() cubrid_lock_read() cubrid_lock_write() cubrid_prepare() cubrid_put() cubrid_rollback() cubrid_schema() cubrid_seq_drop() cubrid_seq_insert() cubrid_seq_put() cubrid_set_add() cubrid_set_autocommit() cubrid_set_db_parameter() cubrid_set_drop() cubrid_affected_rows() cubrid_client_encoding() cubrid_errno() cubrid_error() cubrid_list_dbs() cubrid_ping() cubrid_query() cubrid_real_escape_string() cubrid_lob2_new()		Persistent connection to CUBRID database
cubrid request	cubrid_prepare() cubrid_execute() cubrid_query() cubrid_unbuffered_query()	cubrid_bind() cubrid_column_names() cubrid_column_types() cubrid_current_oid() cubrid_execute() cubrid_free_result() cubrid_get_query_timeout() cubrid_move_cursor() cubrid_next_result() cubrid_num_cols() cubrid_num_rows() cubrid_set_query_timeout() cubrid_data_seek() cubrid_fetch_array() cubrid_fetch_assoc() cubrid_fetch_field() cubrid_fetch_lengths() cubrid_fetch_object() cubrid_fetch_row() cubrid_field_flags() cubrid_field_len() cubrid_field_name() cubrid_field_seek() cubrid_field_table() cubrid_field_type() cubrid_num_fields() cubrid_result() cubrid_lob2_bind()	cubrid_close_prepare() cubrid_close_request()	CUBRID request
cubrid lob	cubrid_lob_get()	cubrid_lob_export() cubrid_lob_send() cubrid_lob_size()	cubrid_lob_close()	None
cubrid lob2	cubrid_lob2_new() cubrid_fetch() cubrid_fetch_row() cubrid_fetch_array() cubrid_fetch_assoc() cubrid_fetch_object()	cubrid_lob2_export() cubrid_lob2_import() cubrid_lob2_read() cubrid_lob2_write() cubrid_lob2_tell() cubrid_lob2_tell64() cubrid_lob2_seek() cubrid_lob2_seek64() cubrid_lob2_size() cubrid_lob2_size64()	cubrid_lob2_close()	None
curl	curl_copy_handle(), curl_init()	curl_copy_handle(), curl_errno(), curl_error(), curl_exec(), curl_getinfo(), curl_setopt()	curl_close()	cURL handle
curl_multi	curl_multi_init()	curl_multi_errno(), curl_multi_exec(), curl_multi_info_read(), curl_multi_remove_handle(), curl_multi_select(), curl_multi_setopt()	curl_multi_close()	cURL multi handle
curl_share	curl_share_init()	curl_share_errno(), curl_share_setopt()	curl_share_close()	cURL share handle
dba	dba_open()	dba_delete(), dba_exists(), dba_fetch(), dba_firstkey(), dba_insert(), dba_nextkey(), dba_optimize(), dba_replace(), dba_sync()	dba_close()	Link to DBA database
dba persistent	dba_popen()	dba_delete(), dba_exists(), dba_fetch(), dba_firstkey(), dba_insert(), dba_nextkey(), dba_optimize(), dba_replace(), dba_sync()	None	Persistent link to DBA database
dbase	dbase_open()	dbase_pack(), dbase_add_record(), dbase_replace_record(), dbase_delete_record(), dbase_get_record(), dbase_get_record_with_names(), dbase_numfields(), dbase_numrecords()	dbase_close()	Link to Dbase database
enchant_broker	enchant_broker_init()	enchant_broker_describe(), enchant_broker_dict_exists(), enchant_broker_get_dict_path(), enchant_broker_get_error(), enchant_broker_list_dicts(), enchant_broker_set_dict_path(), enchant_broker_set_ordering()	enchant_broker_free()	Enchant broker (prior to PHP 8.0.0)
enchant_dict	enchant_broker_request_dict() enchant_broker_request_pwl_dict()	enchant_dict_add_to_personal(), enchant_dict_add_to_session(), enchant_dict_check(), enchant_dict_describe(), enchant_dict_get_error(), enchant_dict_is_in_session(), enchant_dict_store_replacement(), enchant_dict_suggest()	enchant_broker_free_dict()	Enchant dictionary (prior to PHP 8.0.0)
fdf	fdf_open()	fdf_create(), fdf_save(), fdf_get_value(), fdf_set_value(), fdf_next_field_name(), fdf_set_ap(), fdf_set_status(), fdf_get_status(), fdf_set_file(), fdf_get_file(), fdf_set_flags(), fdf_set_opt(), fdf_set_submit_form_action(), fdf_set_javascript_action()	fdf_close()	FDF File
ftp	ftp_connect(), ftp_ssl_connect()	ftp_login(), ftp_pwd(), ftp_cdup(), ftp_chdir(), ftp_mkdir(), ftp_rmdir(), ftp_nlist(), ftp_rawlist(), ftp_systype(), ftp_pasv(), ftp_get(), ftp_fget(), ftp_put(), ftp_fput(), ftp_size(), ftp_mdtm(), ftp_rename(), ftp_delete(), ftp_site(), ftp_alloc(), ftp_chmod(), ftp_exec(), ftp_get_option(), ftp_nb_continue(), ftp_nb_fget(), ftp_nb_fput(), ftp_nb_get(), ftp_nb_put(), ftp_raw(), ftp_set_option()	ftp_close()	FTP connection (prior to PHP 8.1.0)
gd	imagecreate(), imagecreatefromgd(), imagecreatefromgd2(), imagecreatefromgd2part(), imagecreatefromgif(), imagecreatefromjpeg(), imagecreatefrompng(), imagecreatefromwbmp(), imagecreatefromstring(), imagecreatefromxbm(), imagecreatefromxpm(), imagecreatetruecolor(), imagerotate()	imagearc(), imagechar(), imagecharup(), imagecolorallocate(), imagecolorat(), imagecolorclosest(), imagecolorexact(), imagecolorresolve(), imagegammacorrect(), imagegammacorrect(), imagecolorset(), imagecolorsforindex(), imagecolorstotal(), imagecolortransparent(), imagecopy(), imagecopyresized(), imagedashedline(), imagefill(), imagefilledpolygon(), imagefilledrectangle(), imagefilltoborder(), imagegif(), imagepng(), imagejpeg(), imagewbmp(), imageinterlace(), imageline(), imagepolygon(), imagerectangle(), imagerotate(), imagesetpixel(), imagestring(), imagestringup(), imagesx(), imagesy(), imagettftext(), imagefilledarc(), imageellipse(), imagefilledellipse(), imagecolorclosestalpha(), imagecolorexactalpha(), imagecolorresolvealpha(), imagecopymerge(), imagecopymergegray(), imagecopyresampled(), imagetruecolortopalette(), imagesetbrush(), imagesettile(), imagesetthickness(), image2wbmp(), imagealphablending(), imageantialias(), imagecolorallocatealpha(), imagecolorclosesthwb(), imagecolordeallocate(), imagecolormatch(), imagefilter(), imagefttext(), imagegd(), imagegd2(), imageistruecolor(), imagelayereffect(), imagepalettecopy(), imagesavealpha(), imagesetstyle(), imagexbm()	imagedestroy()	GD Image (prior to PHP 8.0.0)
gd font	imageloadfont()	imagechar(), imagecharup(), imagefontheight()	None	Font for GD (prior to PHP 8.1.0)
imap	imap_open()	imap_append(), imap_body(), imap_check(), imap_createmailbox(), imap_delete(), imap_deletemailbox(), imap_expunge(), imap_fetchbody(), imap_fetchstructure(), imap_headerinfo(), imap_header(), imap_headers(), imap_listmailbox(), imap_getmailboxes(), imap_get_quota(), imap_status(), imap_listsubscribed(), imap_set_quota(), imap_set_quota(), imap_getsubscribed(), imap_mail_copy(), imap_mail_move(), imap_num_msg(), imap_num_recent(), imap_ping(), imap_renamemailbox(), imap_reopen(), imap_subscribe(), imap_undelete(), imap_unsubscribe(), imap_scanmailbox(), imap_mailboxmsginfo(), imap_fetchheader(), imap_uid(), imap_msgno(), imap_search(), imap_fetch_overview()	imap_close()	Link to IMAP, POP3 server (prior to PHP 8.1.0)
interbase blob	ibase_blob_create(), ibase_blob_import(), ibase_blob_open()	ibase_blob_add(), ibase_blob_cancel(), ibase_blob_echo(), ibase_blob_get(), ibase_blob_info()	ibase_blob_close()
interbase link	ibase_connect()	ibase_query(), ibase_prepare(), ibase_trans()	ibase_close()	Link to Interbase database
interbase link persistent	ibase_pconnect()	ibase_query(), ibase_prepare(), ibase_trans()	None	Persistent link to Interbase database
interbase query	ibase_prepare()	ibase_execute()	ibase_free_query()	Interbase query
interbase result	ibase_query()	ibase_fetch_row(), ibase_fetch_object(), ibase_field_info(), ibase_num_fields()	ibase_free_result()	Interbase Result
interbase transaction	ibase_trans()	ibase_commit()	ibase_rollback()	Interbase transaction
ldap link	ldap_connect(), ldap_search()	ldap_count_entries(), ldap_first_attribute(), ldap_first_entry(), ldap_get_attributes(), ldap_get_dn(), ldap_get_entries(), ldap_get_values(), ldap_get_values_len(), ldap_next_attribute(), ldap_next_entry()	ldap_close()	ldap connection (prior to PHP 8.1.0)
ldap result	ldap_read()	ldap_add(), ldap_compare(), ldap_bind(), ldap_count_entries(), ldap_delete(), ldap_errno(), ldap_error(), ldap_first_attribute(), ldap_first_entry(), ldap_get_attributes(), ldap_get_dn(), ldap_get_entries(), ldap_get_values(), ldap_get_values_len(), ldap_get_option(), ldap_list(), ldap_modify(), ldap_mod_add(), ldap_mod_replace(), ldap_next_attribute(), ldap_next_entry(), ldap_mod_del(), ldap_set_option(), ldap_unbind()	ldap_free_result()	ldap search result (prior to PHP 8.1.0)
ldap result entry				ldap result entry (prior to PHP 8.1.0)
mailparse_mail_structure	mailparse_msg_create() mailparse_msg_parse_file()	mailparse_msg_extract_part_file() mailparse_msg_extract_part() mailparse_msg_extract_whole_part_file() mailparse_msg_get_part_data() mailparse_msg_get_part() mailparse_msg_get_structure() mailparse_msg_parse()	mailparse_msg_free()
mysql link	mysql_connect()	mysql_affected_rows(), mysql_create_db(), mysql_data_seek(), mysql_db_name(), mysql_db_query(), mysql_drop_db(), mysql_errno(), mysql_error(), mysql_insert_id(), mysql_list_dbs(), mysql_list_fields(), mysql_list_tables(), mysql_query(), mysql_result(), mysql_select_db(), mysql_tablename(), mysql_get_host_info(), mysql_get_proto_info(), mysql_get_server_info()	mysql_close()	Link to MySQL database
mysql link persistent	mysql_pconnect()	mysql_affected_rows(), mysql_create_db(), mysql_data_seek(), mysql_db_name(), mysql_db_query(), mysql_drop_db(), mysql_errno(), mysql_error(), mysql_insert_id(), mysql_list_dbs(), mysql_list_fields(), mysql_list_tables(), mysql_query(), mysql_result(), mysql_select_db(), mysql_tablename(), mysql_get_host_info(), mysql_get_proto_info(), mysql_get_server_info()	None	Persistent link to MySQL database
mysql result	mysql_db_query(), mysql_list_dbs(), mysql_list_fields(), mysql_list_processes(), mysql_list_tables(), mysql_query(), mysql_unbuffered_query()	mysql_data_seek(), mysql_db_name(), mysql_fetch_array(), mysql_fetch_assoc(), mysql_fetch_field(), mysql_fetch_lengths(), mysql_fetch_object(), mysql_fetch_row(), mysql_fetch_row(), mysql_field_flags(), mysql_field_name(), mysql_field_len(), mysql_field_seek(), mysql_field_table(), mysql_field_type(), mysql_num_fields(), mysql_num_rows(), mysql_result(), mysql_tablename()	mysql_free_result()	MySQL result
oci8 collection	oci_new_collection()	OCICollection::append(), OCICollection::assign(), OCICollection::assignElem(), OCICollection::getElem(), OCICollection::max(), OCICollection::size(), OCICollection::trim()	OCICollection::free()	Oracle Collection
oci8 connection	oci_connect(), oci_pconnect(), oci_new_connect()	oci_commit(), oci_error(), oci_new_cursor(), oci_parse(), oci_password_change(), oci_rollback(), oci_server_version(), oci_set_action(), oci_set_client_identifier(), oci_set_client_info(), oci_set_module_name()	oci_close()	Connection to Oracle Database
oci8 lob	oci_new_descriptor()	OCILob::append(), OCILob::close(), OCILob::eof(), OCILob::erase(), OCILob::export(), OCILob::flush(), OCILob::getBuffering(), OCILob::import(), OCILob::load(), OCILob::read(), OCILob::rewind(), OCILob::save(), OCILob::saveFile(), OCILob::seek(), OCILob::setBuffering(), OCILob::size(), OCILob::tell(), OCILob::truncate(), OCILob::write(), OCILob::writeTemporary(), OCILob::writeToFile(), oci_lob_copy(), oci_lob_is_equal()	OCILob::free()	Oracle large objects
oci8 statement	oci_parse(), oci_new_cursor()	oci_bind_array_by_name(), oci_bind_by_name(), oci_cancel(), oci_define_by_name(), oci_error() oci_execute(), oci_fetch_all(), oci_fetch_array(), oci_fetch_assoc(), oci_fetch_object(), oci_fetch_row(), oci_fetch(), oci_field_is_null(), oci_field_name(), oci_field_precision(), oci_field_scale(), oci_field_size(), oci_field_type_raw(), oci_field_type(), oci_num_fields(), oci_num_rows(), oci_result(), oci_set_prefetch(), oci_statement_type()	oci_free_statement()	Oracle cursor
odbc link	odbc_connect()	odbc_autocommit(), odbc_commit(), odbc_error(), odbc_errormsg(), odbc_exec(), odbc_tables(), odbc_tableprivileges(), odbc_do(), odbc_prepare(), odbc_columns(), odbc_columnprivileges(), odbc_procedurecolumns(), odbc_specialcolumns(), odbc_rollback(), odbc_setoption(), odbc_gettypeinfo(), odbc_primarykeys(), odbc_foreignkeys(), odbc_procedures(), odbc_statistics()	odbc_close()	Link to ODBC database
odbc link persistent	odbc_pconnect()	odbc_autocommit(), odbc_commit(), odbc_error(), odbc_errormsg(), odbc_exec(), odbc_tables(), odbc_tableprivileges(), odbc_do(), odbc_prepare(), odbc_columns(), odbc_columnprivileges(), odbc_procedurecolumns(), odbc_specialcolumns(), odbc_rollback(), odbc_setoption(), odbc_gettypeinfo(), odbc_primarykeys(), odbc_foreignkeys(), odbc_procedures(), odbc_statistics()	None	Persistent link to ODBC database
odbc result	odbc_prepare()	odbc_binmode(), odbc_cursor(), odbc_execute(), odbc_fetch_into(), odbc_fetch_row(), odbc_field_name(), odbc_field_num(), odbc_field_type(), odbc_field_len(), odbc_field_precision(), odbc_field_scale(), odbc_longreadlen(), odbc_num_fields(), odbc_num_rows(), odbc_result(), odbc_result_all(), odbc_setoption()	odbc_free_result()	ODBC result
birdstep link				Link to Birdstep database (prior to PHP 7.3.0)
birdstep result				Birdstep result (prior to PHP 7.3.0)
OpenSSL key	openssl_get_privatekey(), openssl_get_publickey()	openssl_sign(), openssl_seal(), openssl_open(), openssl_verify()	openssl_free_key()	OpenSSL key
OpenSSL X.509	openssl_x509_read()	openssl_x509_parse(), openssl_x509_checkpurpose()	openssl_x509_free()	Public Key
pgsql large object	pg_lo_open()	pg_lo_open(), pg_lo_create(), pg_lo_read(), pg_lo_read_all(), pg_lo_seek(), pg_lo_tell(), pg_lo_unlink(), pg_lo_write()	pg_lo_close()	PostgreSQL Large Object (prior to PHP 8.1.0)
pgsql link	pg_connect()	pg_affected_rows(), pg_query(), pg_send_query(), pg_get_result(), pg_connection_busy(), pg_connection_reset(), pg_connection_status(), pg_last_error(), pg_last_notice(), pg_lo_create(), pg_lo_export(), pg_lo_import(), pg_lo_open(), pg_lo_unlink(), pg_host(), pg_port(), pg_dbname(), pg_options(), pg_copy_from(), pg_copy_to(), pg_end_copy(), pg_put_line(), pg_tty(), pg_trace(), pg_untrace(), pg_set_client_encoding(), pg_client_encoding(), pg_meta_data(), pg_convert(), pg_insert(), pg_select(), pg_delete(), pg_update()	pg_close()	Link to PostgreSQL database (prior to PHP 8.1.0)
pgsql link persistent	pg_pconnect()	pg_affected_rows(), pg_query(), pg_send_query(), pg_get_result(), pg_connection_busy(), pg_connection_reset(), pg_connection_status(), pg_last_error(), pg_last_notice(), pg_lo_create(), pg_lo_export(), pg_lo_import(), pg_lo_open(), pg_lo_unlink(), pg_host(), pg_port(), pg_dbname(), pg_options(), pg_copy_from(), pg_copy_to(), pg_end_copy(), pg_put_line(), pg_tty(), pg_trace(), pg_untrace(), pg_set_client_encoding(), pg_client_encoding(), pg_meta_data(), pg_convert(), pg_insert(), pg_select(), pg_delete(), pg_update()	None	Persistent link to PostgreSQL database
pgsql result	pg_execute(), pg_query(), pg_query_params(), pg_get_result()	pg_fetch_array(), pg_fetch_object(), pg_fetch_result(), pg_fetch_row(), pg_field_is_null(), pg_field_name(), pg_field_num(), pg_field_prtlen(), pg_field_size(), pg_field_type(), pg_last_oid(), pg_num_fields(), pg_num_rows(), pg_result_error(), pg_result_status()	pg_free_result()	PostgreSQL result (prior to PHP 8.1.0)
pgsql string
process	proc_open()	proc_get_status() proc_terminate()	proc_close()	Process
pspell	pspell_new(), pspell_new_config(), pspell_new_personal()	pspell_add_to_personal(), pspell_add_to_session(), pspell_check(), pspell_clear_session(), pspell_config_ignore(), pspell_config_mode(), pspell_config_personal(), pspell_config_repl(), pspell_config_runtogether(), pspell_config_save_repl(), pspell_save_wordlist(), pspell_store_replacement(), pspell_suggest()	None	pspell dictionary (prior to PHP 8.1.0)
pspell config	pspell_config_create()	pspell_new_config()	None	pspell configuration (prior to PHP 8.1.0)
shmop	shmop_open()	shmop_read(), shmop_write(), shmop_size(), shmop_delete()	shmop_close()	Shared memory block handle (prior to PHP 8.0.0)
Socket	socket_accept(), socket_addrinfo_bind(), socket_addrinfo_connect(), socket_create(), socket_create_listen(), socket_import_stream(), socket_wsaprotocol_info_import()	socket_accept(), socket_bind(), socket_clear_error(), socket_connect(), socket_get_option(), socket_getpeername(), socket_getsockname(), socket_last_error(), socket_listen(), socket_read(), socket_recv(), socket_recvfrom(), socket_recvmsg(), socket_select(), socket_send(), socket_sendmsg(), socket_sendto(), socket_set_block(), socket_set_nonblock(), socket_set_option(), socket_shutdown(), socket_write(), socket_wsaprotocol_info_export(), socket_wsaprotocol_info_release()	socket_close()	Socket (sockets extension)
stream	opendir()	readdir(), rewinddir()	closedir()	Dir handle
stream	fopen(), tmpfile()	feof(), fflush(), fgetc(), fgetcsv(), fgets(), fgetss(), flock(), fpassthru(), fputs(), fwrite(), fread(), fseek(), ftell(), fstat(), ftruncate(), set_file_buffer(), rewind()	fclose()	File handle
stream	popen(), fsockopen(), pfsockopen()	feof(), fflush(), fgetc(), fgetcsv(), fgets(), fgetss(), fpassthru(), fputs(), fwrite(), fread()	pclose()	Process handle
socket		fflush(), fgetc(), fgetcsv(), fgets(), fgetss(), fpassthru(), fputs(), fwrite(), fread()	fclose()	Socket handle
SSH2 Session	ssh2_connect()		ssh2_disconnect()
SSH2 Listener	ssh2_forward_listen()
SSH2 SFTP	ssh2_sftp()
SSH2 Publickey Subsystem	ssh2_publickey_init()
sysvmsg queue	msg_get_queue()	msg_queue_exists(), msg_receive(), msg_send(), msg_set_queue(), msg_stat_queue()	msg_remove_queue()	System V Message Queue (prior to PHP 8.0.0)
sysvsem	sem_get()	sem_acquire()	sem_release()	System V Semaphore (prior to PHP 8.0.0)
sysvshm	shm_attach()	shm_remove(), shm_put_var(), shm_get_var(), shm_remove_var()	shm_detach()	System V Shared Memory (prior to PHP 8.0.0)
wddx	wddx_packet_start()	wddx_add_vars()	wddx_packet_end()	WDDX packet
xml	xml_parser_create(), xml_parser_create_ns()	xml_set_object(), xml_set_element_handler(), xml_set_character_data_handler(), xml_set_processing_instruction_handler(), xml_set_default_handler(), xml_set_unparsed_entity_decl_handler(), xml_set_notation_decl_handler(), xml_set_external_entity_ref_handler(), xml_parse(), xml_get_error_code(), xml_error_string(), xml_get_current_line_number(), xml_get_current_column_number(), xml_get_current_byte_index(), xml_parse_into_struct(), xml_parser_set_option(), xml_parser_get_option()	xml_parser_free()	XML parser (prior to PHP 8.0.0)
zlib	gzopen()	gzeof(), gzgetc(), gzgets(), gzgetss(), gzpassthru(), gzputs(), gzread(), gzrewind(), gzseek(), gztell(), gzwrite()	gzclose()	gz-compressed file
zlib.deflate	deflate_init()	deflate_add()	None	incremental deflate context (prior to PHP 8.0.0)
zlib.inflate	inflate_init()	inflate_add(), inflate_get_read_len(), inflate_get_status()	None	incremental inflate context (prior to PHP 8.0.0)