diff --git a/ext/pgsql/config.m4 b/ext/pgsql/config.m4
index 8718208e8506..b8952521c302 100644
--- a/ext/pgsql/config.m4
+++ b/ext/pgsql/config.m4
@@ -33,6 +33,9 @@ if test "$PHP_PGSQL" != "no"; then
       [Define to 1 if libpq has the 'PQsetChunkedRowsMode' function (PostgreSQL
       17 or later).])],,
     [$PGSQL_LIBS])
+  PHP_CHECK_LIBRARY([pq], [PQclosePrepared],
+    [AC_DEFINE([HAVE_PG_CLOSE_STMT], [1], [PostgreSQL 17 or later])],,
+    [$PGSQL_LIBS])
 
   old_CFLAGS=$CFLAGS
   CFLAGS="$CFLAGS $PGSQL_CFLAGS"
diff --git a/ext/pgsql/pgsql.c b/ext/pgsql/pgsql.c
index af95c81d803a..09ed9d75623c 100644
--- a/ext/pgsql/pgsql.c
+++ b/ext/pgsql/pgsql.c
@@ -6256,3 +6256,39 @@ PHP_FUNCTION(pg_set_chunked_rows_size)
 	RETURN_BOOL(PQsetChunkedRowsMode(link->conn, (int)size) == 1);
 }
 #endif
+
+#if defined(HAVE_PG_CLOSE_STMT)
+PHP_FUNCTION(pg_close_stmt)
+{
+	zval *pgsql_link;
+	pgsql_link_handle *link;
+	PGresult *pgsql_result;
+	zend_string *stmt;
+
+	ZEND_PARSE_PARAMETERS_START(2, 2)
+		Z_PARAM_OBJECT_OF_CLASS(pgsql_link, pgsql_link_ce)
+		Z_PARAM_STR(stmt)
+	ZEND_PARSE_PARAMETERS_END();
+
+	if (ZSTR_LEN(stmt) == 0) {
+		zend_argument_value_error(2, "cannot be empty");
+		RETURN_THROWS();
+	}
+
+	link = Z_PGSQL_LINK_P(pgsql_link);
+	CHECK_PGSQL_LINK(link);
+
+	pgsql_result = PQclosePrepared(link->conn, ZSTR_VAL(stmt));
+
+	if (PQresultStatus(pgsql_result) != PGRES_COMMAND_OK) {
+		RETURN_FALSE;
+	} else {
+		pgsql_result_handle *pg_handle;
+		object_init_ex(return_value, pgsql_result_ce);
+		pg_handle = Z_PGSQL_RESULT_P(return_value);
+		pg_handle->conn = link->conn;
+		pg_handle->result = pgsql_result;
+		pg_handle->row = 0;
+	}
+}
+#endif
diff --git a/ext/pgsql/pgsql.stub.php b/ext/pgsql/pgsql.stub.php
index f507de2e062a..10ce60df9cdc 100644
--- a/ext/pgsql/pgsql.stub.php
+++ b/ext/pgsql/pgsql.stub.php
@@ -970,6 +970,9 @@ function pg_socket_poll($socket, int $read, int $write, int $timeout = -1): int
 #ifdef HAVE_PG_SET_CHUNKED_ROWS_SIZE
     function pg_set_chunked_rows_size(Pgsql\Connection $connection, int $size): bool {}
 #endif
+#ifdef HAVE_PG_CLOSE_STMT
+    function pg_close_stmt(Pgsql\Connection $connection, string $statement_name): Pgsql\Result|false {}
+#endif
 }
 
 namespace PgSql {
diff --git a/ext/pgsql/pgsql_arginfo.h b/ext/pgsql/pgsql_arginfo.h
index 182dea8d221a..778698a28756 100644
--- a/ext/pgsql/pgsql_arginfo.h
+++ b/ext/pgsql/pgsql_arginfo.h
@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: 0b89a48c27c6682542312391f10a3ab8fb719ef8 */
+ * Stub hash: 1f0141abe7cf476c305b074e31ce69a48b6eee21 */
 
 ZEND_BEGIN_ARG_WITH_RETURN_OBJ_TYPE_MASK_EX(arginfo_pg_connect, 0, 1, PgSql\\Connection, MAY_BE_FALSE)
 	ZEND_ARG_TYPE_INFO(0, connection_string, IS_STRING, 0)
@@ -495,6 +495,13 @@ ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_pg_set_chunked_rows_size, 0, 2,
 ZEND_END_ARG_INFO()
 #endif
 
+#if defined(HAVE_PG_CLOSE_STMT)
+ZEND_BEGIN_ARG_WITH_RETURN_OBJ_TYPE_MASK_EX(arginfo_pg_close_stmt, 0, 2, Pgsql\\Result, MAY_BE_FALSE)
+	ZEND_ARG_OBJ_INFO(0, connection, Pgsql\\Connection, 0)
+	ZEND_ARG_TYPE_INFO(0, statement_name, IS_STRING, 0)
+ZEND_END_ARG_INFO()
+#endif
+
 ZEND_FUNCTION(pg_connect);
 ZEND_FUNCTION(pg_pconnect);
 ZEND_FUNCTION(pg_connect_poll);
@@ -598,6 +605,9 @@ ZEND_FUNCTION(pg_socket_poll);
 #if defined(HAVE_PG_SET_CHUNKED_ROWS_SIZE)
 ZEND_FUNCTION(pg_set_chunked_rows_size);
 #endif
+#if defined(HAVE_PG_CLOSE_STMT)
+ZEND_FUNCTION(pg_close_stmt);
+#endif
 
 static const zend_function_entry ext_functions[] = {
 	ZEND_FE(pg_connect, arginfo_pg_connect)
@@ -725,6 +735,9 @@ static const zend_function_entry ext_functions[] = {
 	ZEND_FE(pg_socket_poll, arginfo_pg_socket_poll)
 #if defined(HAVE_PG_SET_CHUNKED_ROWS_SIZE)
 	ZEND_FE(pg_set_chunked_rows_size, arginfo_pg_set_chunked_rows_size)
+#endif
+#if defined(HAVE_PG_CLOSE_STMT)
+	ZEND_FE(pg_close_stmt, arginfo_pg_close_stmt)
 #endif
 	ZEND_FE_END
 };
diff --git a/ext/pgsql/tests/pg_close_stmt.phpt b/ext/pgsql/tests/pg_close_stmt.phpt
new file mode 100644
index 000000000000..e93108c1e7a2
--- /dev/null
+++ b/ext/pgsql/tests/pg_close_stmt.phpt
@@ -0,0 +1,33 @@
+--TEST--
+PostgreSQL pg_close_stmt
+--EXTENSIONS--
+pgsql
+--SKIPIF--
+<?php include("inc/skipif.inc");
+if (!function_exists("pg_close_stmt")) die("skip pg_close_stmt unsupported");
+?>
+--FILE--
+<?php
+include('inc/config.inc');
+
+
+$query = 'SELECT $1::text IS NULL;';
+$params_null = [null];
+
+$db = pg_connect($conn_str);
+$res = pg_prepare($db, 'test', $query);
+
+$res = pg_execute($db, 'test', $params_null);
+$res = pg_close_stmt($db, 'test');
+var_dump($res !== false);
+var_dump(pg_result_status($res) === PGSQL_COMMAND_OK);
+pg_prepare($db, 'test', $query);
+$res = pg_execute($db, 'test', $params_null);
+pg_free_result($res);
+
+pg_close($db);
+
+?>
+--EXPECT--
+bool(true)
+bool(true)