pg_version

(PHP 5, PHP 7)

pg_version — Returns an array with client, protocol and server version (when available)

Descrierea

pg_version ( resource $connection = ? ) : array

pg_version() returns an array with the client, protocol and server version. Protocol and server versions are only available if PHP was compiled with PostgreSQL 7.4 or later.

For more detailed server information, use pg_parameter_status().

Parametri

connection: PostgreSQL database connection resource. When connection is not present, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect().

Valorile întoarse

Returns an array with client, protocol and server keys and values (if available). Returns false on error or invalid connection.

Exemple

Example #1 pg_version() example


<?php
  $dbconn = pg_connect("host=localhost port=5432 dbname=mary")
     or die("Could not connect");
     
  $v = pg_version($dbconn);
  
  echo $v['client'];
?>

Exemplul de mai sus va afișa:

7.4

A se vedea și

pg_parameter_status() - Looks up a current parameter setting of the server

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User Contributed Notes 2 notes

down

mgchristensen ¶

4 years ago


I note that the array element for "protocol" seemingly has no value, being reported as:

 ["protocol"]=> int(3)

whereas the array element for e.g. "server" is reported as (in my particular case):

["server"]=> string(5) "10.12"

A call to json_encode() however gives:

"protocol":3 and "server":"10.12"

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live627 ¶

4 years ago


Complete output off this function for me is:

array(13) {
  ["client"]=>
  string(5) "9.6.9"
  ["protocol"]=>
  int(3)
  ["server"]=>
  string(4) "12.1"
  ["server_encoding"]=>
  string(4) "UTF8"
  ["client_encoding"]=>
  string(4) "UTF8"
  ["is_superuser"]=>
  string(2) "on"
  ["session_authorization"]=>
  string(8) "postgres"
  ["DateStyle"]=>
  string(8) "ISO, MDY"
  ["IntervalStyle"]=>
  string(8) "postgres"
  ["TimeZone"]=>
  string(10) "US/Arizona"
  ["integer_datetimes"]=>
  string(2) "on"
  ["standard_conforming_strings"]=>
  string(2) "on"
  ["application_name"]=>
  string(0) ""
}

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