PHP Conference Nagoya 2025

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)

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