diff --git a/ext/ftp/config.m4 b/ext/ftp/config.m4
index e060c9000fd1a..df668e1a5af03 100644
--- a/ext/ftp/config.m4
+++ b/ext/ftp/config.m4
@@ -20,7 +20,7 @@ if test "$PHP_FTP" = "yes"; then
   AC_DEFINE([HAVE_FTP], [1],
     [Define to 1 if the PHP extension 'ftp' is available.])
   PHP_NEW_EXTENSION([ftp], [php_ftp.c ftp.c], [$ext_shared])
-
+  PHP_INSTALL_HEADERS([ext/ftp], [php_ftp.h])
   AS_VAR_IF([PHP_FTP_SSL], [no],, [
     PHP_SETUP_OPENSSL([FTP_SHARED_LIBADD])
     PHP_SUBST([FTP_SHARED_LIBADD])
diff --git a/ext/ftp/config.w32 b/ext/ftp/config.w32
index 057552c1d39e9..9e85378bdf5d6 100644
--- a/ext/ftp/config.w32
+++ b/ext/ftp/config.w32
@@ -5,7 +5,7 @@ ARG_ENABLE("ftp", "ftp support", "no");
 if (PHP_FTP != "no") {
 
 	EXTENSION("ftp", "php_ftp.c ftp.c");
-
+    PHP_INSTALL_HEADERS("ext/ftp/", "php_ftp.h");
 	var ret = SETUP_OPENSSL("ftp", PHP_FTP);
 
 	if (ret >= 2) {
diff --git a/ext/ftp/ftp.c b/ext/ftp/ftp.c
index f9c61748efdda..dab01881b6aa8 100644
--- a/ext/ftp/ftp.c
+++ b/ext/ftp/ftp.c
@@ -20,6 +20,7 @@
 #endif
 
 #include "php.h"
+#include "php_ftp.h"
 
 #include <stdio.h>
 #include <ctype.h>
@@ -1378,7 +1379,7 @@ static int my_poll(php_socket_t fd, int events, int timeout) {
 
 	while (true) {
 		zend_hrtime_t start_ns = zend_hrtime();
-		n = php_pollfd_for_ms(fd, events, (int) (timeout_hr / 1000000));
+		n = php_ftp_pollfd_for_ms(fd, events, (int) (timeout_hr / 1000000));
 
 		if (n == -1 && php_socket_errno() == EINTR) {
 			zend_hrtime_t delta_ns = zend_hrtime() - start_ns;
diff --git a/ext/ftp/php_ftp.c b/ext/ftp/php_ftp.c
index d7acb3edef68e..fe13a0e76bd24 100644
--- a/ext/ftp/php_ftp.c
+++ b/ext/ftp/php_ftp.c
@@ -38,6 +38,7 @@
 
 static zend_class_entry *php_ftp_ce = NULL;
 static zend_object_handlers ftp_object_handlers;
+PHP_FTP_API int(*php_ftp_pollfd_for_ms)(php_socket_t, int, int);
 
 zend_module_entry php_ftp_module_entry = {
 	STANDARD_MODULE_HEADER_EX,
@@ -109,6 +110,7 @@ PHP_MINIT_FUNCTION(ftp)
 	ftp_object_handlers.clone_obj = NULL;
 
 	register_ftp_symbols(module_number);
+	php_ftp_pollfd_for_ms = php_pollfd_for_ms;
 
 	return SUCCESS;
 }
diff --git a/ext/ftp/php_ftp.h b/ext/ftp/php_ftp.h
index b701f1331d0be..b32ccfe02719c 100644
--- a/ext/ftp/php_ftp.h
+++ b/ext/ftp/php_ftp.h
@@ -22,6 +22,7 @@ extern zend_module_entry php_ftp_module_entry;
 #define phpext_ftp_ptr &php_ftp_module_entry
 
 #include "php_version.h"
+#include "php_network.h"
 #define PHP_FTP_VERSION PHP_VERSION
 
 #define PHP_FTP_OPT_TIMEOUT_SEC	0
@@ -32,4 +33,16 @@ extern zend_module_entry php_ftp_module_entry;
 PHP_MINIT_FUNCTION(ftp);
 PHP_MINFO_FUNCTION(ftp);
 
+#ifdef PHP_WIN32
+#define PHP_FTP_API __declspec(dllexport)
+#elif defined(__GNUC__) && __GNUC__ >= 4
+#define PHP_FTP_API __attribute__ ((visibility("default")))
+#else
+#define PHP_FTP_API
+#endif
+
+/* expose this interface to enable coroutine support for FTP in other extensions
+ */
+PHP_FTP_API extern int(*php_ftp_pollfd_for_ms)(php_socket_t, int, int);
+
 #endif