Merge branch 'PHP-7.3' into PHP-7.4

* PHP-7.3:
  Fix bug #78697: inaccurate error message

3 files changed, 45 insertions, 31 deletions

diff --git a/ext/reflection/php_reflection.c b/ext/reflection/php_reflection.c
index e7df9bfa61..94b2709763 100644
--- a/ext/reflection/php_reflection.c
+++ b/ext/reflection/php_reflection.c
@@ -5020,7 +5020,7 @@ ZEND_METHOD(reflection_class, implementsInterface)
 
 	if (!(interface_ce->ce_flags & ZEND_ACC_INTERFACE)) {
 		zend_throw_exception_ex(reflection_exception_ptr, 0,
-				"Interface %s is a Class", ZSTR_VAL(interface_ce->name));
+				"%s is not an interface", ZSTR_VAL(interface_ce->name));
 		return;
 	}
 	RETURN_BOOL(instanceof_function(ce, interface_ce));
diff --git a/ext/reflection/tests/ReflectionClass_implementsInterface_001.phpt b/ext/reflection/tests/ReflectionClass_implementsInterface_001.phpt
index 91398867ec..d1cbc8ae47 100644
--- a/ext/reflection/tests/ReflectionClass_implementsInterface_001.phpt
+++ b/ext/reflection/tests/ReflectionClass_implementsInterface_001.phpt
@@ -67,14 +67,14 @@ try {
 ?>
 --EXPECTF--
 Does A implement A? 
-   - Using object argument: Interface A is a Class
-   - Using string argument: Interface A is a Class
+   - Using object argument: A is not an interface
+   - Using string argument: A is not an interface
 Does A implement B? 
-   - Using object argument: Interface B is a Class
-   - Using string argument: Interface B is a Class
+   - Using object argument: B is not an interface
+   - Using string argument: B is not an interface
 Does A implement C? 
-   - Using object argument: Interface C is a Class
-   - Using string argument: Interface C is a Class
+   - Using object argument: C is not an interface
+   - Using string argument: C is not an interface
 Does A implement I1? 
    - Using object argument: bool(true)
    - Using string argument: bool(true)
@@ -82,14 +82,14 @@ Does A implement I2?
    - Using object argument: bool(false)
    - Using string argument: bool(false)
 Does B implement A? 
-   - Using object argument: Interface A is a Class
-   - Using string argument: Interface A is a Class
+   - Using object argument: A is not an interface
+   - Using string argument: A is not an interface
 Does B implement B? 
-   - Using object argument: Interface B is a Class
-   - Using string argument: Interface B is a Class
+   - Using object argument: B is not an interface
+   - Using string argument: B is not an interface
 Does B implement C? 
-   - Using object argument: Interface C is a Class
-   - Using string argument: Interface C is a Class
+   - Using object argument: C is not an interface
+   - Using string argument: C is not an interface
 Does B implement I1? 
    - Using object argument: bool(true)
    - Using string argument: bool(true)
@@ -97,14 +97,14 @@ Does B implement I2?
    - Using object argument: bool(false)
    - Using string argument: bool(false)
 Does C implement A? 
-   - Using object argument: Interface A is a Class
-   - Using string argument: Interface A is a Class
+   - Using object argument: A is not an interface
+   - Using string argument: A is not an interface
 Does C implement B? 
-   - Using object argument: Interface B is a Class
-   - Using string argument: Interface B is a Class
+   - Using object argument: B is not an interface
+   - Using string argument: B is not an interface
 Does C implement C? 
-   - Using object argument: Interface C is a Class
-   - Using string argument: Interface C is a Class
+   - Using object argument: C is not an interface
+   - Using string argument: C is not an interface
 Does C implement I1? 
    - Using object argument: bool(true)
    - Using string argument: bool(true)
@@ -112,14 +112,14 @@ Does C implement I2?
    - Using object argument: bool(true)
    - Using string argument: bool(true)
 Does I1 implement A? 
-   - Using object argument: Interface A is a Class
-   - Using string argument: Interface A is a Class
+   - Using object argument: A is not an interface
+   - Using string argument: A is not an interface
 Does I1 implement B? 
-   - Using object argument: Interface B is a Class
-   - Using string argument: Interface B is a Class
+   - Using object argument: B is not an interface
+   - Using string argument: B is not an interface
 Does I1 implement C? 
-   - Using object argument: Interface C is a Class
-   - Using string argument: Interface C is a Class
+   - Using object argument: C is not an interface
+   - Using string argument: C is not an interface
 Does I1 implement I1? 
    - Using object argument: bool(true)
    - Using string argument: bool(true)
@@ -127,14 +127,14 @@ Does I1 implement I2?
    - Using object argument: bool(false)
    - Using string argument: bool(false)
 Does I2 implement A? 
-   - Using object argument: Interface A is a Class
-   - Using string argument: Interface A is a Class
+   - Using object argument: A is not an interface
+   - Using string argument: A is not an interface
 Does I2 implement B? 
-   - Using object argument: Interface B is a Class
-   - Using string argument: Interface B is a Class
+   - Using object argument: B is not an interface
+   - Using string argument: B is not an interface
 Does I2 implement C? 
-   - Using object argument: Interface C is a Class
-   - Using string argument: Interface C is a Class
+   - Using object argument: C is not an interface
+   - Using string argument: C is not an interface
 Does I2 implement I1? 
    - Using object argument: bool(true)
    - Using string argument: bool(true)
diff --git a/ext/reflection/tests/bug78697.phpt b/ext/reflection/tests/bug78697.phpt
new file mode 100644
index 0000000000..b35d0f4d4e
--- /dev/null
+++ b/ext/reflection/tests/bug78697.phpt
@@ -0,0 +1,14 @@
+--TEST--
+Bug #78697: ReflectionClass::implementsInterface - inaccurate error message with traits
+--FILE--
+<?php
+trait T {}
+
+try {
+    (new ReflectionClass(new stdClass))->implementsInterface(T::class);
+} catch (ReflectionException $e) {
+    echo $e->getMessage();
+}
+?>
+--EXPECT--
+T is not an interface