PHP Manual
PostgreSQL 函数
Returns an array with client, protocol and server version (when available)

pg_version

(PHP 5, PHP 7)

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

说明

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().

参数

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().

返回值

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

范例

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'];
?>

以上例程会输出：

7.4

参见

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

php apd 函数 returns the current call stack as an array php date/time 函数 returns associative array with detailed info about given date php ibm db2 函数 returns an object with properties that describe the db2 database client php enchant 函数 returns a list of available dictionaries php frontbase 函数 list databases available on a frontbase server php imap 函数 this function returns an array of messages matching the given search criteria php mailparse 函数 returns an associative array of info about the message php mailparse 函数 returns an array of mime section names in the supplied message php maxdb 函数 returns the maxdb client version as a string php mysqlnd ms 函数 returns an array which describes the last used connection php mysqlnd qc 函数 returns information on the current handler the number of cache entries and cache entries if available php postgresql 函数 returns the name or oid of the tables field php postgresql 函数 looks up a current parameter setting of the server php postgresql 函数 submits a command and separate parameters to the server without waiting for the result s php postgresql 函数 returns the current in transaction status of the server php postgresql 函数 returns an array with client protocol and server version when available php sqlite 函数 returns whether or not a previous row is available php sqlite 函数 executes a query and returns either an array for one single column or the value of the first row php swoole 函数 exit the eventloop only available at the client side php hyperwave api 函数 returns statistics about database server