- Fixed bug #62892 (ReflectionClass::getTraitAliases crashes on importing trait methods as private)

2 files changed, 25 insertions, 2 deletions

diff --git a/Zend/tests/bug62892.phpt b/Zend/tests/bug62892.phpt
new file mode 100644
index 0000000000..e6b0e60ff3
--- /dev/null
+++ b/Zend/tests/bug62892.phpt
@@ -0,0 +1,21 @@
+--TEST--
+Bug #62892 (ReflectionClass::getTraitAliases crashes on importing trait methods as private)
+--FILE--
+<?php
+ 
+trait myTrait {
+     public function run() {}
+}
+
+class myClass {
+     use myTrait {
+         MyTrait::run as private;
+     }
+}
+$class = new \ReflectionClass('myClass');
+var_dump($class->getTraitAliases());
+
+?>
+--EXPECTF--
+array(0) {
+}
diff --git a/ext/reflection/php_reflection.c b/ext/reflection/php_reflection.c
index 6656f58c65..7c9981924d 100644
--- a/ext/reflection/php_reflection.c
+++ b/ext/reflection/php_reflection.c
@@ -4464,8 +4464,10 @@ ZEND_METHOD(reflection_class, getTraitAliases)
 			int method_name_len;
 			zend_trait_method_reference *cur_ref = ce->trait_aliases[i]->trait_method;
 
-			method_name_len = spprintf(&method_name, 0, "%s::%s", cur_ref->class_name, cur_ref->method_name);
-			add_assoc_stringl_ex(return_value, ce->trait_aliases[i]->alias, ce->trait_aliases[i]->alias_len + 1, method_name, method_name_len, 0);
+			if (ce->trait_aliases[i]->alias) {
+				method_name_len = spprintf(&method_name, 0, "%s::%s", cur_ref->class_name, cur_ref->method_name);
+				add_assoc_stringl_ex(return_value, ce->trait_aliases[i]->alias, ce->trait_aliases[i]->alias_len + 1, method_name, method_name_len, 0);
+			}
 			i++;
 		}
 	}