an empty string for fragment when there are no any chars after #

Author: fu22ybear

ext/standard/tests/strings/url_t.phpt

@@ -393,7 +393,7 @@ $sample_urls = array (
   string(3) "foo"
 }
 
---> http://www.php.net:80/?#: array(5) {
+--> http://www.php.net:80/?#: array(6) {
   ["scheme"]=>
   string(4) "http"
   ["host"]=>
@@ -404,6 +404,8 @@ $sample_urls = array (
   string(1) "/"
   ["query"]=>
   string(0) ""
+  ["fragment"]=>
+  string(0) ""
 }
 
 --> http://www.php.net:80/?test=1: array(5) {

ext/standard/tests/url/bug78385.phpt

@@ -324,7 +324,7 @@ echo "Done";
   string(3) "foo"
 }
 
---> http://www.php.net:80/?#: array(5) {
+--> http://www.php.net:80/?#: array(6) {
   ["scheme"]=>
   string(4) "http"
   ["host"]=>
@@ -335,6 +335,8 @@ echo "Done";
   string(1) "/"
   ["query"]=>
   string(0) ""
+  ["fragment"]=>
+  string(0) ""
 }
 
 --> http://www.php.net:80/?test=1: array(5) {
@@ -777,11 +779,13 @@ echo "Done";
   string(0) ""
 }
 
---> http://::#: array(2) {
+--> http://::#: array(3) {
   ["scheme"]=>
   string(4) "http"
   ["host"]=>
   string(1) ":"
+  ["fragment"]=>
+  string(0) ""
 }
 
 --> x://::6.5: array(3) {

ext/standard/tests/url/parse_url_basic_001.phpt

@@ -54,7 +54,7 @@ echo "Done";
 --> http://www.php.net:80/index.php   : NULL
 --> http://www.php.net:80/index.php?   : NULL
 --> http://www.php.net:80/#foo   : string(3) "foo"
---> http://www.php.net:80/?#   : NULL
+--> http://www.php.net:80/?#   : string(0) ""
 --> http://www.php.net:80/?test=1   : NULL
 --> http://www.php.net/?test=1&   : NULL
 --> http://www.php.net:80/?&   : NULL
@@ -96,7 +96,7 @@ echo "Done";
 --> x:/blah.com   : NULL
 --> x://::abc/?   : bool(false)
 --> http://::?   : NULL
---> http://::#   : NULL
+--> http://::#   : string(0) ""
 --> x://::6.5   : NULL
 --> http://?:/   : bool(false)
 --> http://@?:/   : bool(false)

ext/standard/tests/url/parse_url_basic_009.phpt

@@ -326,7 +326,7 @@ echo "Done";
   string(3) "foo"
 }
 
---> http://www.php.net:80/?#: array(5) {
+--> http://www.php.net:80/?#: array(6) {
   ["scheme"]=>
   string(4) "http"
   ["host"]=>
@@ -337,6 +337,8 @@ echo "Done";
   string(1) "/"
   ["query"]=>
   string(0) ""
+  ["fragment"]=>
+  string(0) ""
 }
 
 --> http://www.php.net:80/?test=1: array(5) {
@@ -779,11 +781,13 @@ echo "Done";
   string(0) ""
 }
 
---> http://::#: array(2) {
+--> http://::#: array(3) {
   ["scheme"]=>
   string(4) "http"
   ["host"]=>
   string(1) ":"
+  ["fragment"]=>
+  string(0) ""
 }
 
 --> x://::6.5: array(3) {

ext/standard/tests/url/parse_url_unterminated.phpt

@@ -291,6 +291,8 @@ PHPAPI php_url *php_url_parse_ex(char const *str, size_t length)
 		if (p < e) {
 			ret->fragment = zend_string_init(p, (e - p), 0);
 			php_replace_controlchars_ex(ZSTR_VAL(ret->fragment), ZSTR_LEN(ret->fragment));
+		} else {
+			ret->fragment = ZSTR_EMPTY_ALLOC();
 		}
 		e = p-1;
 	}