Issue with ob handler context and execution in PHP

Description

I am encountering an issue while working with the "ob_start" function in PHP and the callback parameter.

Description:
When utilizing ob_start("system") to initiate output buffering with the "system" callback in the provided code snippet, I've observed that the zend_get_executed_filename function fails to return the correct file name when the "system" zend function is executed.

This discrepancy occurs particularly when a flush operation happens during php_request_shutdown.

<?php
ob_start("system");
?>

Observations:
Upon debugging, I've noticed the following:

• Omission of the ob_flush() function call results in the flushing of output handlers during php_request_shutdown.
• Prior to the invocation of php_output_end_all, the EG(current_execute_data) variable is set to NULL.
• Consequently, when the "system" function is executed, it operates without the context of the current executed file name, leading to unexpected behavior.

Expected Behavior:
I expect the zend_get_executed_filename function to accurately retrieve the file name, even in scenarios involving flush operations during php_request_shutdown. Is this feasible?

PHP Version

PHP 8.3.3

Operating System

No response

ob_start("system") が使用されたときの php_request_shutdown から php_output_end_all までの流れを追跡することから始め、system が zend_get_executed_filename を呼び出す前に EG(current_execute_data) がどのように扱われるかを調べてください。PHP 8.3.3 の例を ob_flush(); ありとなしで再現してください。done は、シャットダウン時のフラッシュ中も実行されたファイル名が正しいままであることを意味します。