Fixed bug #52209 (INPUT_ENV returns NULL for set variables (CLI)).

ext/filter/filter.c

@@ -546,7 +546,7 @@ static zval *php_filter_get_storage(long arg TSRMLS_DC)/* {{{ */
 			if (PG(auto_globals_jit)) {
 				zend_is_auto_global("_ENV", sizeof("_ENV")-1 TSRMLS_CC);
 			}
-			array_ptr = IF_G(env_array);
+			array_ptr = IF_G(env_array) ? IF_G(env_array) : PG(http_globals)[TRACK_VARS_ENV];
 			break;
 		case PARSE_SESSION:
 			/* FIXME: Implement session source */

ext/filter/tests/bug52209.phpt

@@ -0,0 +1,10 @@
+--TEST--
+Bug #52209 (INPUT_ENV returns NULL for set variables (CLI))
+--SKIPIF--
+<?php if (!extension_loaded("filter") || !empty($_ENV['PWD'])) die("skip"); ?>
+--FILE--
+<?php
+	var_dump(filter_input(INPUT_ENV, 'PWD'));
+?>
+--EXPECTF--	
+string(%d) "%s"