add_stack_frame  1338 xdebug.c       	fse = add_stack_frame(edata, op_array, XDEBUG_EXTERNAL TSRMLS_CC);
add_stack_frame  1429 xdebug.c       	fse = add_stack_frame(edata, edata->op_array, XDEBUG_INTERNAL TSRMLS_CC);