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Fix static variable behavior with inheritance

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When a method is inherited, the static variables will now always
use the initial values, rather than the values at the time of
inheritance. As such, behavior no longer depends on whether
inheritance happens before or after a method has been called.

This is implemented by always keeping static_variables as the
original values, and static_variables_ptr as the modified copy.

Closes GH-6705.
This commit is contained in:
Nikita Popov 2021-02-17 10:47:30 +01:00
parent e03284739f
commit 5d160e309e
19 changed files with 97 additions and 144 deletions
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1
ext/opcache/zend_accelerator_util_funcs.c
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@ -219,7 +219,6 @@ zend_op_array* zend_accel_load_script(zend_persistent_script *persistent_script,
op_array = (zend_op_array *) emalloc(sizeof(zend_op_array));
*op_array = persistent_script->script.main_op_array;
ZEND_MAP_PTR_INIT(op_array->static_variables_ptr, &op_array->static_variables);
if (zend_hash_num_elements(&persistent_script->script.function_table) > 0) {
zend_accel_function_hash_copy(CG(function_table), &persistent_script->script.function_table);