Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:110717
To: "internals@lists.php.net" <internals@lists.php.net>
Thread-Topic: Making the hardcoded string length limit of
 Throwable->getTraceAsString() configurable 
Thread-Index: AQHWSluH9mWyvPhluEKGvr5yJRT+2g==
Date: Wed, 24 Jun 2020 19:22:13 +0000
Message-ID:
 <DM6PR07MB6618FF81C67689A8B156F8BAF9950@DM6PR07MB6618.namprd07.prod.outlook.com>
Accept-Language: en-CA, en-US
Content-Language: en-CA
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000
X-MS-Exchange-CrossTenant-Network-Message-Id: 9b796f05-8d4d-4270-186e-08d81873e625
X-MS-Exchange-CrossTenant-rms-persistedconsumerorg: 00000000-0000-0000-0000-000000000000
X-MS-Exchange-CrossTenant-originalarrivaltime: 24 Jun 2020 19:22:13.3781
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Internet
X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN8NAM12HT110
Subject: Making the hardcoded string length limit of
 Throwable->getTraceAsString() configurable
From: tysonandre775@hotmail.com (tyson andre)


Hi internals,=0A=
=0A=
By default, strings in parameter lists are truncated to 15 bytes by default=
 in Throwable->getTraceAsString()=0A=
(and Throwable->__toString() as a consequence).=0A=
(in Zend/zend_exception.c in `static void _build_trace_args(zval *arg, smar=
t_str *str)`)=0A=
=0A=
This limit is too short to see relevant information such as file paths, ful=
l urls, etc, which makes reporting bugs in applications inconvenient.=0A=
=0A=
Would there be any interest in an ini setting such as `exception_string_len=
gth_limit` as a non-negative value to raise this (either allowed to be 0 or=
 more or 15 or more, defaulting to 15)=0A=
=0A=
It's possible to manually work around it by calling Throwable->getTrace(), =
but inconvenient,=0A=
and there's always a concern about the user-space trace generation having i=
ts own issues=0A=
(e.g.=A0https://github.com/phan/phan/blob/3.0.3/src/Phan/Debug/Frame.php#L2=
5-L132)=0A=
=0A=
In applications that don't have a custom exception handler, users could rai=
se this to make creating bug reports easier.=0A=
=0A=
```=0A=
php > test('12345678901234567890');=0A=
Warning: Uncaught Exception in php shell code:1=0A=
Stack trace:=0A=
#0 php shell code(1): test('123456789012345...')=0A=
#1 {main}=0A=
=A0 thrown in php shell code on line 1=0A=
```=0A=
=0A=
Thanks,=0A=
- Tyson=