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FrankenPHP segfault / panic with JSON logging and go_log

What happened?

Hi,

I’m encountering an issue with FrankenPHP (v1.11.0) on my Symfony/FrankenPHP project. As soon as I enable the JSON log block in my Caddyfile:

{
    auto_https disable_redirects
    skip_install_trust

    frankenphp

    log {
        output stdout
        format json
    }
}

the server crashes with a panic / invalid memory address or nil pointer dereference:

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x30 pc=0x17ccd0e]
goroutine 17 [running, locked to thread]:
github.com/dunglas/frankenphp.(*phpThread).frankenPHPContext(...)
github.com/dunglas/frankenphp.go_log(0xc0000580e0?, 0x71581425f000, 0x4)

Additional details:

The problem does not occur if I comment out the log { ... } block.
I’m using PHP 8.4 and Symfony 7.3.
The crash happens at server startup.
Disabling JSON logging prevents the crash.

Here is my dockerFile:


FROM dunglas/frankenphp:1-builder-php8.4 AS builder

COPY --from=caddy:builder /usr/bin/xcaddy /usr/bin/xcaddy

RUN GOTOOLCHAIN=auto \
    CGO_ENABLED=1 \
    CGO_CFLAGS="$(php-config --includes)" \
    CGO_LDFLAGS="$(php-config --ldflags) $(php-config --libs)" \
    XCADDY_GO_BUILD_FLAGS="-ldflags='-w -s' -tags=nobadger,nomysql,nopgx" \
    xcaddy build \
        --output /usr/local/bin/frankenphp \
        --with github.com/dunglas/frankenphp/caddy \
        --with github.com/dunglas/mercure/caddy \
        --with github.com/dunglas/caddy-cbrotli \
        --with github.com/caddyserver/cache-handler


FROM dunglas/frankenphp:1-php8.4 AS base

COPY --from=builder --link /usr/local/bin/frankenphp /usr/local/bin/frankenphp

WORKDIR /app

# https://getcomposer.org/doc/03-cli.md#composer-allow-superuser
ENV COMPOSER_ALLOW_SUPERUSER=1

RUN apt-get update && apt-get install -y vim && rm -rf /var/lib/apt/lists/*

RUN curl -sL https://get.symfony.com/cli/installer | bash -s -- --install-dir=/usr/local/bin

RUN install-php-extensions \
    gd \
    intl \
    zip \
    opcache \
    pdo_pgsql \
    mbstring \
    @composer

COPY --link frankenphp/Caddyfile /etc/caddy/Caddyfile
COPY --link frankenphp/conf.d/app.ini $PHP_INI_DIR/conf.d/
COPY --link --chmod=755 scripts/docker-entrypoint.sh /usr/local/bin/docker-entrypoint

HEALTHCHECK --interval=30s --timeout=5s --start-period=60s --retries=3 \
  CMD curl -fsS http://localhost/api/health-check >/dev/null || exit 1

ENTRYPOINT [ "docker-entrypoint" ]

CMD [ "frankenphp", "run", "--config", "/etc/caddy/Caddyfile" ]


FROM base AS prod

ENV APP_ENV=prod

RUN mv "$PHP_INI_DIR/php.ini-production" "$PHP_INI_DIR/php.ini"

COPY --link frankenphp/conf.d/app.prod.ini $PHP_INI_DIR/conf.d/
COPY . .

RUN composer install --no-dev --no-interaction --prefer-dist --optimize-autoloader

Build Type

Docker (Debian Trixie)

Worker Mode

Yes

Operating System

GNU/Linux

CPU Architecture

x86_64

PHP configuration

phpinfo()
PHP Version => 8.4.15

System => Linux 7ff984c74e9a 6.8.0-85-generic #85-Ubuntu SMP PREEMPT_DYNAMIC Thu Sep 18 15:26:59 UTC 2025 x86_64
Build Date => Nov 20 2025 19:54:01
Build System => Linux - Docker
Build Provider => https://github.com/docker-library/php
Configure Command =>  './configure'  '--build=x86_64-linux-gnu' '--with-config-file-path=/usr/local/etc/php' '--with-config-file-scan-dir=/usr/local/etc/php/conf.d' '--enable-option-checking=fatal' '--with-mhash' '--with-pic' '--enable-mbstring' '--enable-mysqlnd' '--with-password-argon2' '--with-sodium=shared' '--with-pdo-sqlite=/usr' '--with-sqlite3=/usr' '--with-curl' '--with-iconv' '--with-openssl' '--with-readline' '--with-zlib' '--enable-phpdbg' '--enable-phpdbg-readline' '--with-pear' '--with-libdir=lib/x86_64-linux-gnu' '--enable-embed' '--enable-zts' '--disable-zend-signals' 'build_alias=x86_64-linux-gnu' 'PHP_UNAME=Linux - Docker' 'PHP_BUILD_PROVIDER=https://github.com/docker-library/php'
Server API => Command Line Interface
Virtual Directory Support => enabled
Configuration File (php.ini) Path => /usr/local/etc/php
Loaded Configuration File => /usr/local/etc/php/php.ini
Scan this dir for additional .ini files => /usr/local/etc/php/conf.d
Additional .ini files parsed => /usr/local/etc/php/conf.d/app.ini,
/usr/local/etc/php/conf.d/app.prod.ini,
/usr/local/etc/php/conf.d/docker-php-ext-gd.ini,
/usr/local/etc/php/conf.d/docker-php-ext-intl.ini,
/usr/local/etc/php/conf.d/docker-php-ext-opcache.ini,
/usr/local/etc/php/conf.d/docker-php-ext-pdo_pgsql.ini,
/usr/local/etc/php/conf.d/docker-php-ext-sodium.ini,
/usr/local/etc/php/conf.d/docker-php-ext-zip.ini

PHP API => 20240924
PHP Extension => 20240924
Zend Extension => 420240924
Zend Extension Build => API420240924,TS
PHP Extension Build => API20240924,TS
PHP Integer Size => 64 bits
Debug Build => no
Thread Safety => enabled
Thread API => POSIX Threads
Zend Signal Handling => disabled
Zend Memory Manager => enabled
Zend Multibyte Support => provided by mbstring
Zend Max Execution Timers => enabled
IPv6 Support => enabled
DTrace Support => disabled

Registered PHP Streams => https, ftps, compress.zlib, php, file, glob, data, http, ftp, phar, zip
Registered Stream Socket Transports => tcp, udp, unix, udg, ssl, tls, tlsv1.0, tlsv1.1, tlsv1.2, tlsv1.3
Registered Stream Filters => zlib.*, convert.iconv.*, string.rot13, string.toupper, string.tolower, convert.*, consumed, dechunk

This program makes use of the Zend Scripting Language Engine:
Zend Engine v4.4.15, Copyright (c) Zend Technologies
    with Zend OPcache v8.4.15, Copyright (c), by Zend Technologies


 _______________________________________________________________________


Configuration

Core

PHP Version => 8.4.15

Directive => Local Value => Master Value
allow_url_fopen => On => On
allow_url_include => Off => Off
arg_separator.input => & => &
arg_separator.output => & => &
auto_append_file => no value => no value
auto_globals_jit => On => On
auto_prepend_file => no value => no value
browscap => no value => no value
default_charset => UTF-8 => UTF-8
default_mimetype => text/html => text/html
disable_classes => no value => no value
disable_functions => no value => no value
display_errors => Off => Off
display_startup_errors => Off => Off
doc_root => no value => no value
docref_ext => no value => no value
docref_root => no value => no value
enable_dl => Off => Off
enable_post_data_reading => On => On
error_append_string => no value => no value
error_log => no value => no value
error_log_mode => 0644 => 0644
error_prepend_string => no value => no value
error_reporting => 22527 => 22527
expose_php => Off => Off
extension_dir => /usr/local/lib/php/extensions/no-debug-zts-20240924 => /usr/local/lib/php/extensions/no-debug-zts-20240924
fiber.stack_size => no value => no value
file_uploads => On => On
hard_timeout => 2 => 2
highlight.comment => <span style="color: #FF8000">#FF8000</span> => <span style="color: #FF8000">#FF8000</span>
highlight.default => <span style="color: #0000BB">#0000BB</span> => <span style="color: #0000BB">#0000BB</span>
highlight.html => <span style="color: #000000">#000000</span> => <span style="color: #000000">#000000</span>
highlight.keyword => <span style="color: #007700">#007700</span> => <span style="color: #007700">#007700</span>
highlight.string => <span style="color: #DD0000">#DD0000</span> => <span style="color: #DD0000">#DD0000</span>
html_errors => Off => Off
ignore_repeated_errors => Off => Off
ignore_repeated_source => Off => Off
ignore_user_abort => Off => Off
implicit_flush => On => On
include_path => .:/usr/local/lib/php => .:/usr/local/lib/php
input_encoding => no value => no value
internal_encoding => no value => no value
log_errors => On => On
mail.add_x_header => Off => Off
mail.force_extra_parameters => no value => no value
mail.log => no value => no value
mail.mixed_lf_and_crlf => Off => Off
max_execution_time => 0 => 0
max_file_uploads => 20 => 20
max_input_nesting_level => 64 => 64
max_input_time => -1 => -1
max_input_vars => 1000 => 1000
max_multipart_body_parts => -1 => -1
memory_limit => 128M => 128M
open_basedir => no value => no value
output_buffering => 0 => 0
output_encoding => no value => no value
output_handler => no value => no value
post_max_size => 8M => 8M
precision => 14 => 14
realpath_cache_size => 4096K => 4096K
realpath_cache_ttl => 600 => 600
register_argc_argv => On => On
report_memleaks => On => On
report_zend_debug => Off => Off
request_order => GP => GP
sendmail_from => no value => no value
sendmail_path => /usr/sbin/sendmail -t -i => /usr/sbin/sendmail -t -i
serialize_precision => -1 => -1
short_open_tag => Off => Off
SMTP => localhost => localhost
smtp_port => 25 => 25
sys_temp_dir => no value => no value
syslog.facility => LOG_USER => LOG_USER
syslog.filter => no-ctrl => no-ctrl
syslog.ident => php => php
unserialize_callback_func => no value => no value
upload_max_filesize => 2M => 2M
upload_tmp_dir => no value => no value
user_dir => no value => no value
user_ini.cache_ttl => 300 => 300
user_ini.filename => .user.ini => .user.ini
variables_order => GPCS => GPCS
xmlrpc_error_number => 0 => 0
xmlrpc_errors => Off => Off
zend.assertions => -1 => -1
zend.detect_unicode => Off => Off
zend.enable_gc => On => On
zend.exception_ignore_args => On => On
zend.exception_string_param_max_len => 0 => 0
zend.max_allowed_stack_size => 0 => 0
zend.multibyte => Off => Off
zend.reserved_stack_size => 0 => 0
zend.script_encoding => no value => no value

ctype

ctype functions => enabled

curl

cURL support => enabled
cURL Information => 8.14.1
Age => 11
Features
AsynchDNS => Yes
CharConv => No
Debug => No
GSS-Negotiate => No
IDN => Yes
IPv6 => Yes
krb4 => No
Largefile => Yes
libz => Yes
NTLM => Yes
NTLMWB => No
SPNEGO => Yes
SSL => Yes
SSPI => No
TLS-SRP => Yes
HTTP2 => Yes
GSSAPI => Yes
KERBEROS5 => Yes
UNIX_SOCKETS => Yes
PSL => Yes
HTTPS_PROXY => Yes
MULTI_SSL => No
BROTLI => Yes
ALTSVC => Yes
HTTP3 => Yes
UNICODE => No
ZSTD => Yes
HSTS => Yes
GSASL => No
Protocols => dict, file, ftp, ftps, gopher, gophers, http, https, imap, imaps, ldap, ldaps, mqtt, pop3, pop3s, rtmp, rtmpe, rtmps, rtmpt, rtmpte, rtmpts, rtsp, scp, sftp, smb, smbs, smtp, smtps, telnet, tftp, ws, wss
Host => x86_64-pc-linux-gnu
SSL Version => OpenSSL/3.5.4
ZLib Version => 1.3.1
libSSH Version => libssh2/1.11.1

Directive => Local Value => Master Value
curl.cainfo => no value => no value

date

date/time support => enabled
timelib version => 2022.14
"Olson" Timezone Database Version => 2025.2
Timezone Database => internal
Default timezone => UTC

Directive => Local Value => Master Value
date.default_latitude => 31.7667 => 31.7667
date.default_longitude => 35.2333 => 35.2333
date.sunrise_zenith => 90.833333 => 90.833333
date.sunset_zenith => 90.833333 => 90.833333
date.timezone => UTC => UTC

dom

DOM/XML => enabled
DOM/XML API Version => 20031129
libxml Version => 2.9.14
HTML Support => enabled
XPath Support => enabled
XPointer Support => enabled
Schema Support => enabled
RelaxNG Support => enabled

fileinfo

fileinfo support => enabled
libmagic => 545

filter

Input Validation and Filtering => enabled

Directive => Local Value => Master Value
filter.default => unsafe_raw => unsafe_raw
filter.default_flags => no value => no value

gd

GD Support => enabled
GD Version => bundled (2.1.0 compatible)
FreeType Support => enabled
FreeType Linkage => with freetype
FreeType Version => 2.13.3
GIF Read Support => enabled
GIF Create Support => enabled
JPEG Support => enabled
libJPEG Version => 6b
PNG Support => enabled
libPNG Version => 1.6.48
WBMP Support => enabled
XPM Support => enabled
libXpm Version => 30411
XBM Support => enabled
WebP Support => enabled
BMP Support => enabled
AVIF Support => enabled
TGA Read Support => enabled

Directive => Local Value => Master Value
gd.jpeg_ignore_warning => On => On

hash

hash support => enabled
Hashing Engines => md2 md4 md5 sha1 sha224 sha256 sha384 sha512/224 sha512/256 sha512 sha3-224 sha3-256 sha3-384 sha3-512 ripemd128 ripemd160 ripemd256 ripemd320 whirlpool tiger128,3 tiger160,3 tiger192,3 tiger128,4 tiger160,4 tiger192,4 snefru snefru256 gost gost-crypto adler32 crc32 crc32b crc32c fnv132 fnv1a32 fnv164 fnv1a64 joaat murmur3a murmur3c murmur3f xxh32 xxh64 xxh3 xxh128 haval128,3 haval160,3 haval192,3 haval224,3 haval256,3 haval128,4 haval160,4 haval192,4 haval224,4 haval256,4 haval128,5 haval160,5 haval192,5 haval224,5 haval256,5 

MHASH support => Enabled
MHASH API Version => Emulated Support

iconv

iconv support => enabled
iconv implementation => glibc
iconv library version => 2.41

Directive => Local Value => Master Value
iconv.input_encoding => no value => no value
iconv.internal_encoding => no value => no value
iconv.output_encoding => no value => no value

intl

Internationalization support => enabled
ICU version => 76.1
ICU Data version => 76.1
ICU TZData version => 2024b
ICU Unicode version => 16.0

Directive => Local Value => Master Value
intl.default_locale => no value => no value
intl.error_level => 0 => 0
intl.use_exceptions => Off => Off

json

json support => enabled

libxml

libXML support => active
libXML Compiled Version => 2.9.14
libXML Loaded Version => 20914
libXML streams => enabled

mbstring

Multibyte Support => enabled
Multibyte string engine => libmbfl
HTTP input encoding translation => disabled
libmbfl version => 1.3.2

mbstring extension makes use of "streamable kanji code filter and converter", which is distributed under the GNU Lesser General Public License version 2.1.

Multibyte (japanese) regex support => enabled
Multibyte regex (oniguruma) version => 6.9.9

Directive => Local Value => Master Value
mbstring.detect_order => no value => no value
mbstring.encoding_translation => Off => Off
mbstring.http_input => no value => no value
mbstring.http_output => no value => no value
mbstring.http_output_conv_mimetypes => ^(text/|application/xhtml\+xml) => ^(text/|application/xhtml\+xml)
mbstring.internal_encoding => no value => no value
mbstring.language => neutral => neutral
mbstring.regex_retry_limit => 1000000 => 1000000
mbstring.regex_stack_limit => 100000 => 100000
mbstring.strict_detection => Off => Off
mbstring.substitute_character => no value => no value

mysqlnd

mysqlnd => enabled
Version => mysqlnd 8.4.15
Compression => supported
core SSL => supported
extended SSL => supported
Command buffer size => 4096
Read buffer size => 32768
Read timeout => 86400
Collecting statistics => Yes
Collecting memory statistics => No
Tracing => n/a
Loaded plugins => mysqlnd,debug_trace,auth_plugin_mysql_native_password,auth_plugin_mysql_clear_password,auth_plugin_caching_sha2_password,auth_plugin_sha256_password
API Extensions =>  

openssl

OpenSSL support => enabled
OpenSSL Library Version => OpenSSL 3.5.4 30 Sep 2025
OpenSSL Header Version => OpenSSL 3.5.4 30 Sep 2025
Openssl default config => /usr/lib/ssl/openssl.cnf

Directive => Local Value => Master Value
openssl.cafile => no value => no value
openssl.capath => no value => no value

pcre

PCRE (Perl Compatible Regular Expressions) Support => enabled
PCRE Library Version => 10.44 2024-06-07
PCRE Unicode Version => 15.0.0
PCRE JIT Support => enabled
PCRE JIT Target => x86 64bit (little endian + unaligned)

Directive => Local Value => Master Value
pcre.backtrack_limit => 1000000 => 1000000
pcre.jit => On => On
pcre.recursion_limit => 100000 => 100000

PDO

PDO support => enabled
PDO drivers => sqlite, pgsql

pdo_pgsql

PDO Driver for PostgreSQL => enabled
PostgreSQL(libpq) Version => 17.6

pdo_sqlite

PDO Driver for SQLite 3.x => enabled
SQLite Library => 3.46.1

Phar

Phar: PHP Archive support => enabled
Phar API version => 1.1.1
Phar-based phar archives => enabled
Tar-based phar archives => enabled
ZIP-based phar archives => enabled
gzip compression => enabled
bzip2 compression => disabled (install ext/bz2)
Native OpenSSL support => enabled


Phar based on pear/PHP_Archive, original concept by Davey Shafik.
Phar fully realized by Gregory Beaver and Marcus Boerger.
Portions of tar implementation Copyright (c) 2003-2009 Tim Kientzle.
Directive => Local Value => Master Value
phar.cache_list => no value => no value
phar.readonly => On => On
phar.require_hash => On => On

posix

POSIX support => enabled

random

Version => 8.4.15

readline

Readline Support => enabled
Readline library => 8.2

Directive => Local Value => Master Value
cli.pager => no value => no value
cli.prompt => \b \>  => \b \> 

Reflection

Reflection => enabled

session

Session Support => enabled
Registered save handlers => files user 
Registered serializer handlers => php_serialize php php_binary 

Directive => Local Value => Master Value
session.auto_start => Off => Off
session.cache_expire => 180 => 180
session.cache_limiter => nocache => nocache
session.cookie_domain => no value => no value
session.cookie_httponly => Off => Off
session.cookie_lifetime => 0 => 0
session.cookie_path => / => /
session.cookie_samesite => no value => no value
session.cookie_secure => Off => Off
session.gc_divisor => 1000 => 1000
session.gc_maxlifetime => 1440 => 1440
session.gc_probability => 1 => 1
session.lazy_write => On => On
session.name => PHPSESSID => PHPSESSID
session.referer_check => no value => no value
session.save_handler => files => files
session.save_path => no value => no value
session.serialize_handler => php => php
session.sid_bits_per_character => 4 => 4
session.sid_length => 32 => 32
session.upload_progress.cleanup => On => On
session.upload_progress.enabled => On => On
session.upload_progress.freq => 1% => 1%
session.upload_progress.min_freq => 1 => 1
session.upload_progress.name => PHP_SESSION_UPLOAD_PROGRESS => PHP_SESSION_UPLOAD_PROGRESS
session.upload_progress.prefix => upload_progress_ => upload_progress_
session.use_cookies => On => On
session.use_only_cookies => On => On
session.use_strict_mode => On => On
session.use_trans_sid => Off => Off

SimpleXML

SimpleXML support => enabled
Schema support => enabled

sodium

sodium support => enabled
libsodium headers version => 1.0.18
libsodium library version => 1.0.18

SPL

SPL support => enabled
Interfaces => OuterIterator, RecursiveIterator, SeekableIterator, SplObserver, SplSubject
Classes => AppendIterator, ArrayIterator, ArrayObject, BadFunctionCallException, BadMethodCallException, CachingIterator, CallbackFilterIterator, DirectoryIterator, DomainException, EmptyIterator, FilesystemIterator, FilterIterator, GlobIterator, InfiniteIterator, InvalidArgumentException, IteratorIterator, LengthException, LimitIterator, LogicException, MultipleIterator, NoRewindIterator, OutOfBoundsException, OutOfRangeException, OverflowException, ParentIterator, RangeException, RecursiveArrayIterator, RecursiveCachingIterator, RecursiveCallbackFilterIterator, RecursiveDirectoryIterator, RecursiveFilterIterator, RecursiveIteratorIterator, RecursiveRegexIterator, RecursiveTreeIterator, RegexIterator, RuntimeException, SplDoublyLinkedList, SplFileInfo, SplFileObject, SplFixedArray, SplHeap, SplMinHeap, SplMaxHeap, SplObjectStorage, SplPriorityQueue, SplQueue, SplStack, SplTempFileObject, UnderflowException, UnexpectedValueException

sqlite3

SQLite3 support => enabled
SQLite Library => 3.46.1

Directive => Local Value => Master Value
sqlite3.defensive => On => On
sqlite3.extension_dir => no value => no value

standard

Dynamic Library Support => enabled
Path to sendmail => /usr/sbin/sendmail -t -i

Directive => Local Value => Master Value
assert.active => On => On
assert.bail => Off => Off
assert.callback => no value => no value
assert.exception => On => On
assert.warning => On => On
auto_detect_line_endings => Off => Off
default_socket_timeout => 60 => 60
from => no value => no value
session.trans_sid_hosts => no value => no value
session.trans_sid_tags => a=href,area=href,frame=src,form= => a=href,area=href,frame=src,form=
unserialize_max_depth => 4096 => 4096
url_rewriter.hosts => no value => no value
url_rewriter.tags => form= => form=
user_agent => no value => no value

tokenizer

Tokenizer Support => enabled

xml

XML Support => active
XML Namespace Support => active
libxml2 Version => 2.9.14

xmlreader

XMLReader => enabled

xmlwriter

XMLWriter => enabled

Zend OPcache

Opcode Caching => Disabled
Optimization => Disabled
SHM Cache => Enabled
File Cache => Disabled
JIT => Disabled
Startup Failed => Opcode Caching is disabled for CLI

Directive => Local Value => Master Value
opcache.blacklist_filename => no value => no value
opcache.dups_fix => Off => Off
opcache.enable => On => On
opcache.enable_cli => Off => Off
opcache.enable_file_override => On => On
opcache.error_log => no value => no value
opcache.file_cache => no value => no value
opcache.file_cache_consistency_checks => On => On
opcache.file_cache_only => Off => Off
opcache.file_update_protection => 2 => 2
opcache.force_restart_timeout => 180 => 180
opcache.huge_code_pages => Off => Off
opcache.interned_strings_buffer => 16 => 16
opcache.jit => disable => disable
opcache.jit_bisect_limit => 0 => 0
opcache.jit_blacklist_root_trace => 16 => 16
opcache.jit_blacklist_side_trace => 8 => 8
opcache.jit_buffer_size => 64M => 64M
opcache.jit_debug => 0 => 0
opcache.jit_hot_func => 127 => 127
opcache.jit_hot_loop => 64 => 64
opcache.jit_hot_return => 8 => 8
opcache.jit_hot_side_exit => 8 => 8
opcache.jit_max_exit_counters => 8192 => 8192
opcache.jit_max_loop_unrolls => 8 => 8
opcache.jit_max_polymorphic_calls => 2 => 2
opcache.jit_max_recursive_calls => 2 => 2
opcache.jit_max_recursive_returns => 2 => 2
opcache.jit_max_root_traces => 1024 => 1024
opcache.jit_max_side_traces => 128 => 128
opcache.jit_max_trace_length => 1024 => 1024
opcache.jit_prof_threshold => 0.005 => 0.005
opcache.lockfile_path => /tmp => /tmp
opcache.log_verbosity_level => 1 => 1
opcache.max_accelerated_files => 20000 => 20000
opcache.max_file_size => 0 => 0
opcache.max_wasted_percentage => 5 => 5
opcache.memory_consumption => 256 => 256
opcache.opt_debug_level => 0 => 0
opcache.optimization_level => 0x7FFEBFFF => 0x7FFEBFFF
opcache.preferred_memory_model => no value => no value
opcache.preload => no value => no value
opcache.preload_user => no value => no value
opcache.protect_memory => Off => Off
opcache.record_warnings => Off => Off
opcache.restrict_api => no value => no value
opcache.revalidate_freq => 2 => 2
opcache.revalidate_path => Off => Off
opcache.save_comments => On => On
opcache.use_cwd => On => On
opcache.validate_permission => Off => Off
opcache.validate_root => Off => Off
opcache.validate_timestamps => On => On

zip

Zip => enabled
Zip version => 1.22.7
Libzip version => 1.11.3
BZIP2 compression => Yes
XZ compression => Yes
ZSTD compression => Yes
AES-128 encryption => Yes
AES-192 encryption => Yes
AES-256 encryption => Yes

zlib

ZLib Support => enabled
Stream Wrapper => compress.zlib://
Stream Filter => zlib.inflate, zlib.deflate
Compiled Version => 1.3.1
Linked Version => 1.3.1

Directive => Local Value => Master Value
zlib.output_compression => Off => Off
zlib.output_compression_level => -1 => -1
zlib.output_handler => no value => no value

Relevant log output

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x30 pc=0x17ccd0e]
goroutine 17 [running, locked to thread]:
github.com/dunglas/frankenphp.(*phpThread).frankenPHPContext(...)
github.com/dunglas/frankenphp.go_log(0xc0000580e0?, 0x71581425f000, 0x4)