PDO_PGSQL is a driver that implements the PHP Data Objects (PDO) interface to enable access from PHP to PostgreSQL databases.
This extension defines a stream resource returned by PDO::pgsqlLOBOpen().
Use --with-pdo-pgsql[=DIR] to install
the PDO PostgreSQL extension, where the optional [=DIR]
is the PostgreSQL base install directory, or the path to pg_config.
$ ./configure --with-pdo-pgsql
下列常量由此驱动定义,且仅在扩展编译入 PHP
或在运行时动态载入时可用。另外,使用此驱动时,仅会使用这些驱动特定的常量。使用其他驱动的驱动特定的常量可能会导致不可预见的情况。如果代码可运行于多个驱动,PDO::getAttribute()
可被用于获取
PDO_ATTR_DRIVER_NAME
属性以检查驱动。
PDO::PGSQL_ATTR_DISABLE_PREPARES
(int)
Send the query and the parameters to the server together in a single call, avoiding the need to create a named prepared statement separately. If the query is only going to be executed once this can reduce latency by avoiding an unnecessary server round-trip.
PDO::PGSQL_ATTR_RESULT_MEMORY_SIZE
(int)
Returns the amount of memory, in bytes, allocated to the specified query result
PDOStatement instance,
or null
if no results exist before the query is executed.
Available as of PHP 8.4.0.
注意:
bytea
fields are returned as streams.