Revert change 3f3ad30c50: There shouldn't be new features in 5.3, especially

not if they aren't in 5.4, too.

ext/json/json.c

@@ -73,7 +73,6 @@ static PHP_MINIT_FUNCTION(json)
 	REGISTER_LONG_CONSTANT("JSON_HEX_QUOT", PHP_JSON_HEX_QUOT, CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("JSON_FORCE_OBJECT", PHP_JSON_FORCE_OBJECT, CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("JSON_NUMERIC_CHECK", PHP_JSON_NUMERIC_CHECK, CONST_CS | CONST_PERSISTENT);
-	REGISTER_LONG_CONSTANT("JSON_PARTIAL_OUTPUT_ON_ERROR", PHP_JSON_PARTIAL_OUTPUT_ON_ERROR, CONST_CS | CONST_PERSISTENT);
 
 	REGISTER_LONG_CONSTANT("JSON_ERROR_NONE", PHP_JSON_ERROR_NONE, CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("JSON_ERROR_DEPTH", PHP_JSON_ERROR_DEPTH, CONST_CS | CONST_PERSISTENT);
@@ -321,7 +320,9 @@ static void json_escape_string(smart_str *buf, char *s, int len, int options TSR
 		}
 		if (len < 0) {
 			JSON_G(error_code) = PHP_JSON_ERROR_UTF8;
-			php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid UTF-8 sequence in argument");
+			if (!PG(display_errors)) {
+				php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid UTF-8 sequence in argument");
+			}
 			smart_str_appendl(buf, "null", 4);
 		} else {
 			smart_str_appendl(buf, "\"\"", 2);
@@ -570,11 +571,7 @@ static PHP_FUNCTION(json_encode)
 
 	php_json_encode(&buf, parameter, options TSRMLS_CC);
 
-	if (JSON_G(error_code) != PHP_JSON_ERROR_NONE && options ^ PHP_JSON_PARTIAL_OUTPUT_ON_ERROR) {
+	ZVAL_STRINGL(return_value, buf.c, buf.len, 1);
-		ZVAL_FALSE(return_value);
-	} else {
-		ZVAL_STRINGL(return_value, buf.c, buf.len, 1);
-	}
 
 	smart_str_free(&buf);
 }

ext/json/php_json.h

@@ -56,7 +56,6 @@ PHP_JSON_API void php_json_decode(zval *return_value, char *str, int str_len, ze
 #define PHP_JSON_HEX_QUOT	(1<<3)
 #define PHP_JSON_FORCE_OBJECT	(1<<4)
 #define PHP_JSON_NUMERIC_CHECK	(1<<5)
-#define PHP_JSON_PARTIAL_OUTPUT_ON_ERROR	(1<<9)
 
 #define PHP_JSON_OUTPUT_ARRAY 0
 #define PHP_JSON_OUTPUT_OBJECT 1

ext/json/tests/bug43941.phpt

@@ -0,0 +1,21 @@
+--TEST--
+Bug #43941 (json_encode() invalid UTF-8)
+--SKIPIF--
+<?php if (!extension_loaded("json")) print "skip"; ?>
+--FILE--
+<?php
+
+var_dump(json_encode("abc"));
+var_dump(json_encode("ab\xE0"));
+var_dump(json_encode("ab\xE0c"));
+var_dump(json_encode(array("ab\xE0", "ab\xE0c", "abc")));
+
+echo "Done\n";
+?>
+--EXPECTF--
+string(5) ""abc""
+string(4) "null"
+string(4) "null"
+string(17) "[null,null,"abc"]"
+Done
+

ext/json/tests/bug54058.phpt

@@ -29,14 +29,7 @@ json_encode($c);
 var_dump(json_last_error());
 ?>
 --EXPECTF--
-Warning: json_encode(): Invalid UTF-8 sequence in argument in %s on line %d
 int(5)
-
-Warning: json_encode(): Invalid UTF-8 sequence in argument in %s on line %d
 int(5)
-
-Warning: json_encode(): Invalid UTF-8 sequence in argument in %s on line %d
 int(5)
-
-Warning: json_encode(): Invalid UTF-8 sequence in argument in %s on line %d
 int(5)

ext/json/tests/bug61537.phpt

@@ -1,30 +0,0 @@
---TEST--
-Bug #61537 (json_encode() incorrectly truncates/discards information)
---SKIPIF--
-<?php if (!extension_loaded("json")) print "skip"; ?>
---FILE--
-<?php
-$invalid_utf8 = "\x9f";
-var_dump(json_encode($invalid_utf8), json_last_error());
-var_dump(json_encode($invalid_utf8, JSON_PARTIAL_OUTPUT_ON_ERROR), json_last_error());
-
-$invalid_utf8 = "an invalid sequen\xce in the middle of a string";
-var_dump(json_encode($invalid_utf8), json_last_error());
-var_dump(json_encode($invalid_utf8, JSON_PARTIAL_OUTPUT_ON_ERROR), json_last_error());
-?>
---EXPECTF--
-Warning: json_encode(): Invalid UTF-8 sequence in argument in %s on line %d
-bool(false)
-int(5)
-
-Warning: json_encode(): Invalid UTF-8 sequence in argument in %s on line %d
-string(4) "null"
-int(5)
-
-Warning: json_encode(): Invalid UTF-8 sequence in argument in %s on line %d
-bool(false)
-int(5)
-
-Warning: json_encode(): Invalid UTF-8 sequence in argument in %s on line %d
-string(4) "null"
-int(5)