diff options
Diffstat (limited to 'main/php_variables.c')
| -rw-r--r-- | main/php_variables.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/main/php_variables.c b/main/php_variables.c index 73274d7695..f55f7c8195 100644 --- a/main/php_variables.c +++ b/main/php_variables.c @@ -109,6 +109,25 @@ PHPAPI void php_register_variable_ex(char *var_name, zval *val, zval *track_vars return; } + if (var_len == sizeof("this")-1 && EG(current_execute_data)) { + zend_execute_data *ex = EG(current_execute_data); + + while (ex) { + if (ex->func && ZEND_USER_CODE(ex->func->common.type)) { + if (ex->symbol_table == symtable1) { + if (memcmp(var, "this", sizeof("this")-1) == 0) { + zend_throw_error(NULL, "Cannot re-assign $this"); + zval_dtor(val); + free_alloca(var_orig, use_heap); + return; + } + } + break; + } + ex = ex->prev_execute_data; + } + } + /* GLOBALS hijack attempt, reject parameter */ if (symtable1 == &EG(symbol_table) && var_len == sizeof("GLOBALS")-1 && |