gistfile1.txt

In all test cases, error_reporting=-1. "Fatal Error" messages sent to stdout due to display_errors=1 setting. "PHP Fatal Error" messages sent to stderr due to log_errors=1/error_log=stderr setting.

Case #1: display_errors=1, log_errors=1

PHP Fatal error:  Call to undefined function undefined() in /root/error.php on line 7
PHP Stack trace:
PHP   1. {main}() /root/error.php:0

Fatal error: Call to undefined function undefined() in /root/error.php on line 7

Call Stack:
    0.0004     222832   1. {main}() /root/error.php:0

---
Case #2: display_errors=1, log_errors=0

Fatal error: Call to undefined function undefined() in /root/error.php on line 7

Call Stack:
    0.0006     222832   1. {main}() /root/error.php:0

---

Case #3: display_errors=0, log_errors=1

PHP Fatal error:  Call to undefined function undefined() in /root/error.php on line 7
PHP Stack trace:
PHP   1. {main}() /root/error.php:0

---

Case #4: display_errors=0, log_errors=0

(nothing output)