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• PHP Manual
• Function Reference
• Database Extensions
• Vendor Specific Database Extensions
• PostgreSQL
• PostgreSQL Functions

Change language: English German Spanish French Italian Japanese Brazilian Portuguese Russian Turkish Ukrainian Chinese (Simplified) Other pg_host

(PHP 4, PHP 5, PHP 7, PHP 8)

pg_host — Returns the host name associated with the connection

Description

pg_host(?PgSql\Connection $connection = null): string

pg_host() returns the host name of the given PostgreSQL connection instance is connected to.

Parameters

connection

An PgSql\Connection instance. When connection is null, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect(). Warning

As of PHP 8.1.0, using the default connection is deprecated.

Return Values

A string containing the name of the host the connection is to, or an empty string on error.

Changelog

Version	Description
8.1.0	The connection parameter expects an PgSql\Connection instance now; previously, a resource was expected.
8.0.0	connection is now nullable.

Examples

Example #1 pg_host() example

<?php$pgsql_conn = pg_connect("dbname=mark host=localhost");if ($pgsql_conn) { print "Successfully connected to: " . pg_host($pgsql_conn) . "<br/>\n";} else { print pg_last_error($pgsql_conn); exit;}?>

See Also

• pg_connect() - Open a PostgreSQL connection
• pg_pconnect() - Open a persistent PostgreSQL connection

Found A Problem?

Learn How To Improve This Page • Submit a Pull Request • Report a Bug ＋add a note

User Contributed Notes 1 note

up down 0 mark at redbrick dot dcu dot ie ¶22 years ago This is a simple example of this function, which returns the name of which PostreSQL Database you are currently connected to. <?php $pgsql_conn = pg_connect("dbname=mark host=localhost"); if ($pgsql_conn) { print "Successfully connected to: " . pg_host($pgsql_conn) . "<br/>\n"; } else { print pg_last_error($pgsql_conn); exit; } ?> This function is extremely useful for sites which connect to multiple Postgresql services. Regards, --mark ＋add a note

• PostgreSQL Functions
  • pg_​affected_​rows
  • pg_​cancel_​query
  • pg_​client_​encoding
  • pg_​close
  • pg_​connect
  • pg_​connect_​poll
  • pg_​connection_​busy
  • pg_​connection_​reset
  • pg_​connection_​status
  • pg_​consume_​input
  • pg_​convert
  • pg_​copy_​from
  • pg_​copy_​to
  • pg_​dbname
  • pg_​delete
  • pg_​end_​copy
  • pg_​escape_​bytea
  • pg_​escape_​identifier
  • pg_​escape_​literal
  • pg_​escape_​string
  • pg_​execute
  • pg_​fetch_​all
  • pg_​fetch_​all_​columns
  • pg_​fetch_​array
  • pg_​fetch_​assoc
  • 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_​table
  • pg_​field_​type
  • pg_​field_​type_​oid
  • pg_​flush
  • pg_​free_​result
  • pg_​get_​notify
  • pg_​get_​pid
  • pg_​get_​result
  • pg_​host
  • pg_​insert
  • pg_​last_​error
  • pg_​last_​notice
  • pg_​last_​oid
  • pg_​lo_​close
  • pg_​lo_​create
  • pg_​lo_​export
  • pg_​lo_​import
  • pg_​lo_​open
  • pg_​lo_​read
  • pg_​lo_​read_​all
  • pg_​lo_​seek
  • pg_​lo_​tell
  • pg_​lo_​truncate
  • pg_​lo_​unlink
  • pg_​lo_​write
  • pg_​meta_​data
  • pg_​num_​fields
  • pg_​num_​rows
  • pg_​options
  • pg_​parameter_​status
  • pg_​pconnect
  • pg_​ping
  • pg_​port
  • pg_​prepare
  • pg_​put_​line
  • pg_​query
  • pg_​query_​params
  • pg_​result_​error
  • pg_​result_​error_​field
  • pg_​result_​memory_​size
  • pg_​result_​seek
  • pg_​result_​status
  • pg_​select
  • pg_​send_​execute
  • pg_​send_​prepare
  • pg_​send_​query
  • pg_​send_​query_​params
  • pg_​set_​chunked_​rows_​size
  • pg_​set_​client_​encoding
  • pg_​set_​error_​context_​visibility
  • pg_​set_​error_​verbosity
  • pg_​socket
  • pg_​trace
  • pg_​transaction_​status
  • pg_​tty
  • pg_​unescape_​bytea
  • pg_​untrace
  • pg_​update
  • pg_​version

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