Fixed bug #80083

Add db2_execute() to the list of functions accessing the local
scope. Ideally the API wouldn't do that, but it seems most
pragmatic to address this on the opcache side at this point.

Author: nikic

NEWS

@@ -2,6 +2,9 @@ PHP                                                                        NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 ?? ??? ????, PHP 7.3.24
 
+- OPcache:
+  . Fixed bug #80083 (Optimizer pass 6 removes variables used for ibm_db2 data
+    binding). (Nikita)
 
 01 Oct 2020, PHP 7.3.23
 

ext/opcache/Optimizer/zend_optimizer.c

@@ -1079,6 +1079,8 @@ uint32_t zend_optimizer_classify_function(zend_string *name, uint32_t num_args)
 		return ZEND_FUNC_INDIRECT_VAR_ACCESS;
 	} else if (zend_string_equals_literal(name, "assert")) {
 		return ZEND_FUNC_INDIRECT_VAR_ACCESS;
+	} else if (zend_string_equals_literal(name, "db2_execute")) {
+		return ZEND_FUNC_INDIRECT_VAR_ACCESS;
 	} else if (zend_string_equals_literal(name, "func_num_args")) {
 		return ZEND_FUNC_VARARG;
 	} else if (zend_string_equals_literal(name, "func_get_arg")) {