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Bug #78424 declare(strict_types=1) causes phpdbg fail with 'Nothing to execute'
Submitted: 2019-08-17 02:41 UTC Modified: 2021-03-19 11:46 UTC
From: alexey at kopytko dot com Assigned:
Status: Open Package: phpdbg
PHP Version: 7.4.15 OS: Debian
Private report: No CVE-ID: None
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 [2019-08-17 02:41 UTC] alexey at kopytko dot com
Description:
------------
It appears adding a strict types declaration makes PHPDBG drop all what it's doing and stop. E.g. consider this example without strict types:

$ cat example.php 
<?php
echo "OK!\n";
$ cat example.php | phpdbg -qrrs=
OK!
And now the same example with strict types:

$ cat example2.php 
<?php
declare(strict_types=1);
echo "OK!\n";
$ cat example2.php | phpdbg -qrrs=
[Nothing to execute!]


$ phpdbg --version
phpdbg 0.5.0 (built: Aug  7 2019 09:50:45)
PHP 7.3.8-1, Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.8, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.3.8-1, Copyright (c) 1999-2018, by Zend Technologies
    with Xdebug v2.7.0RC2, Copyright (c) 2002-2019, by Derick Rethans

I've seen the same issue in PHP 7.4-beta.


Test script:
---------------
<?php
declare(strict_types=1);
echo "OK!\n";

Expected result:
----------------
OK!

Actual result:
--------------
[Nothing to execute!]

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 [2021-03-18 17:02 UTC] cmb@php.net
-Status: Open +Status: Feedback -Assigned To: +Assigned To: cmb
 [2021-03-18 17:02 UTC] cmb@php.net
I cannot reproduce the reported behavior with PHP-7.4.  Did it get
fixed in the meantime?  Or is it OS specific, although no OS has
been mentioned?
 [2021-03-19 04:16 UTC] alexey at kopytko dot com
-Status: Feedback +Status: Assigned
 [2021-03-19 04:16 UTC] alexey at kopytko dot com
I can still reproduce:

$ cat example2.php | phpdbg -qrrs=
[Nothing to execute!]

$ phpdbg --version
phpdbg 7.4.15 (built: Feb 20 2021 09:45:56)
PHP 7.4.15, Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
    with Zend OPcache v7.4.15, Copyright (c), by Zend Technologies


I don't see anything looking like a fix for a changelog for 7.4.16
 [2021-03-19 04:17 UTC] alexey at kopytko dot com
I'm on Debian testing.
 [2021-03-19 11:46 UTC] cmb@php.net
-Status: Assigned +Status: Open -Operating System: +Operating System: Debian -PHP Version: 7.3.8 +PHP Version: 7.4.15 -Assigned To: cmb +Assigned To:
 [2021-03-19 11:46 UTC] cmb@php.net
Thank you.  Might be Linux specific then.
 
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