Fixed run-time binding of preloaded dynamically declared function

Author: dstogov

NEWS

@@ -25,6 +25,7 @@ PHP                                                                        NEWS
 - Opcache:
   . Fixed bug #79643 (PHP with Opcache crashes when a file with specific name
     is included). (twosee)
+  . Fixed run-time binding of preloaded dynamically declared function. (Dmitry)
 
 - OpenSSL:
   . Fixed bug #79983 (openssl_encrypt / openssl_decrypt fail with OCB mode).

Zend/zend_compile.c

@@ -1050,7 +1050,11 @@ ZEND_API int do_bind_function(zval *lcname) /* {{{ */
 		return FAILURE;
 	}
 	function = (zend_function*)Z_PTR_P(zv);
-	zv = zend_hash_set_bucket_key(EG(function_table), (Bucket*)zv, Z_STR_P(lcname));
+	if (UNEXPECTED(function->common.fn_flags & ZEND_ACC_PRELOADED)) {
+		zv = zend_hash_add(EG(function_table), Z_STR_P(lcname), zv);
+	} else {
+		zv = zend_hash_set_bucket_key(EG(function_table), (Bucket*)zv, Z_STR_P(lcname));
+	}
 	if (UNEXPECTED(!zv)) {
 		do_bind_function_error(Z_STR_P(lcname), &function->op_array, 0);
 		return FAILURE;