PHP Class `finfo` not found

[mho22]

I encountered an issue while experimenting with PHP CLI.

node node_modules/.bin/cli test.php

> Fatal error: Uncaught Error: Class "finfo" not found in /mho22/works/php-wasm-issue/test.php:3
> Stack trace:
> #0 {main}
>   thrown in /mho22/works/php-wasm-issue/test.php on line 3

It seems like PHP's built-in extensions like fileinfo are not found. Is this correct ?

Here's step by step to reproduce the problem

mkdir php-wasm-issue

cd php-wasm-issue

npm install @php-wasm/cli

test.php

<?php

$finfo = new finfo( FILEINFO_MIME );

echo json_encode( $finfo );

node node_modules/.bin/cli test.php

[adamziel]

Oh interesting! Are we missing a php.ini setting? Or perhaps the --disable-all flag during the compilation removes this extension from the build?

[mho22]

@adamziel Do you know a way for me to help find how to solve this ?

[adamziel]

@mho22 yes! One way would be to compare the phpinfo() output at https://playground.wordpress.net/?url=/phpinfo.php with a regular PHP installation that has that class and figure out what's different with respect to the finfo class. I think we need to add a flag to ./configure call that would be similar to --enable-finfo. I'm not sure what the exact name is, there should be some hints in https://github.com/php/php-src/tree/master/ext/fileinfo and https://github.com/php/php-src/ in general.

[mho22]

@adamziel I suppose two screenshots with PHP8.2 binary phpinfo() method and PHP-WASM8.2 phpinfo() could be interesting to view here but these views are gigantic.

So, here is a little screenshot of the only thing different when I search for finfo or fileinfo between the two. This element appears on PHP8.2 binary, not PHP-WASM8.2.

Next is the data from Configure Command. I think the best would be to paste what I have. And I hope this will be readable enough :

PHP8.2 binary:

'./configure' '--prefix=/usr/local/Cellar/php@8.2/8.2.14' '--localstatedir=/usr/local/var' '--sysconfdir=/usr/local/etc/php/8.2' '--with-config-file-path=/usr/local/etc/php/8.2' '--with-config-file-scan-dir=/usr/local/etc/php/8.2/conf.d' '--with-pear=/usr/local/Cellar/php@8.2/8.2.14/share/php@8.2/pear' '--enable-bcmath' '--enable-calendar' '--enable-dba' '--enable-exif' '--enable-ftp' '--enable-fpm' '--enable-gd' '--enable-intl' '--enable-mbregex' '--enable-mbstring' '--enable-mysqlnd' '--enable-pcntl' '--enable-phpdbg' '--enable-phpdbg-readline' '--enable-shmop' '--enable-soap' '--enable-sockets' '--enable-sysvmsg' '--enable-sysvsem' '--enable-sysvshm' '--with-apxs2=/usr/local/opt/httpd/bin/apxs' '--with-bz2=/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr' '--with-curl' '--with-external-gd' '--with-external-pcre' '--with-ffi' '--with-fpm-user=_www' '--with-fpm-group=_www' '--with-gettext=/usr/local/opt/gettext' '--with-gmp=/usr/local/opt/gmp' '--with-iconv=/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr' '--with-kerberos' '--with-layout=GNU' '--with-ldap=/usr/local/opt/openldap' '--with-libxml' '--with-libedit' '--with-mhash=/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr' '--with-mysql-sock=/tmp/mysql.sock' '--with-mysqli=mysqlnd' '--with-ndbm=/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr' '--with-openssl' '--with-password-argon2=/usr/local/opt/argon2' '--with-pdo-dblib=/usr/local/opt/freetds' '--with-pdo-mysql=mysqlnd' '--with-pdo-odbc=unixODBC,/usr/local/opt/unixodbc' '--with-pdo-pgsql=/usr/local/opt/libpq' '--with-pdo-sqlite' '--with-pgsql=/usr/local/opt/libpq' '--with-pic' '--with-pspell=/usr/local/opt/aspell' '--with-sodium' '--with-sqlite3' '--with-tidy=/usr/local/opt/tidy-html5' '--with-unixODBC' '--with-xsl' '--with-zip' '--with-zlib' '--enable-dtrace' '--with-ldap-sasl' '--with-os-sdkpath=/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk' 'PKG_CONFIG_PATH=/usr/local/opt/apr/lib/pkgconfig:/usr/local/opt/openssl@3/lib/pkgconfig:/usr/local/opt/apr-util/lib/pkgconfig:/usr/local/opt/argon2/lib/pkgconfig:/usr/local/opt/brotli/lib/pkgconfig:/usr/local/opt/libidn2/lib/pkgconfig:/usr/local/opt/libnghttp2/lib/pkgconfig:/usr/local/opt/libssh2/lib/pkgconfig:/usr/local/opt/openldap/lib/pkgconfig:/usr/local/opt/rtmpdump/lib/pkgconfig:/usr/local/opt/lz4/lib/pkgconfig:/usr/local/opt/xz/lib/pkgconfig:/usr/local/opt/zstd/lib/pkgconfig:/usr/local/opt/curl/lib/pkgconfig:/usr/local/opt/unixodbc/lib/pkgconfig:/usr/local/opt/libpng/lib/pkgconfig:/usr/local/opt/freetype/lib/pkgconfig:/usr/local/opt/fontconfig/lib/pkgconfig:/usr/local/opt/jpeg-turbo/lib/pkgconfig:/usr/local/opt/highway/lib/pkgconfig:/usr/local/opt/imath/lib/pkgconfig:/usr/local/opt/libtiff/lib/pkgconfig:/usr/local/opt/little-cms2/lib/pkgconfig:/usr/local/opt/openexr/lib/pkgconfig:/usr/local/opt/webp/lib/pkgconfig:/usr/local/opt/jpeg-xl/lib/pkgconfig:/usr/local/opt/libvmaf/lib/pkgconfig:/usr/local/opt/aom/lib/pkgconfig:/usr/local/opt/libavif/lib/pkgconfig:/usr/local/opt/gd/lib/pkgconfig:/usr/local/opt/gmp/lib/pkgconfig:/usr/local/opt/icu4c/lib/pkgconfig:/usr/local/opt/krb5/lib/pkgconfig:/usr/local/opt/libpq/lib/pkgconfig:/usr/local/opt/libsodium/lib/pkgconfig:/usr/local/opt/libzip/lib/pkgconfig:/usr/local/opt/oniguruma/lib/pkgconfig:/usr/local/opt/pcre2/lib/pkgconfig:/usr/local/opt/readline/lib/pkgconfig:/usr/local/opt/sqlite/lib/pkgconfig:/usr/local/opt/tidy-html5/lib/pkgconfig' 'PKG_CONFIG_LIBDIR=/usr/lib/pkgconfig:/usr/local/Homebrew/Library/Homebrew/os/mac/pkgconfig/10.15' 'KERBEROS_CFLAGS= ' 'SASL_CFLAGS=-I/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sasl' 'SASL_LIBS=-lsasl2'

PHP-WASM8.2 :

'./configure' 'PKG_CONFIG_PATH=/root/lib/lib/pkgconfig' '--disable-fiber-asm' '--enable-json' '--enable-embed=static' '--with-layout=GNU' '--disable-cgi' '--disable-all' '--enable-hash' '--enable-static=yes' '--enable-shared=no' '--enable-session' '--enable-filter' '--enable-calendar' '--disable-rpath' '--disable-phpdbg' '--without-pear' '--with-valgrind=no' '--without-pcre-jit' '--enable-bcmath' '--enable-ctype' '--enable-tokenizer' '--with-zlib' '--with-zlib-dir=/root/lib' '--with-zip' '--enable-phar' '--enable-cli=static' '--enable-readline' '--with-libedit=/root/lib' '--enable-libxml' '--with-libxml' '--with-libxml-dir=/root/lib' '--enable-dom' '--enable-xml' '--enable-simplexml' '--enable-xmlreader' '--enable-xmlwriter' '--with-sqlite3' '--with-pdo-sqlite=/root/lib' '--with-png-dir=/root/lib' '--with-gd' '--enable-gd' '--with-openssl' '--with-openssl-dir=/root/lib' '--with-iconv=/root/lib' '--enable-mbstring' '--disable-mbregex' '--enable-mysql' '--enable-pdo' '--with-mysql=mysqlnd' '--with-mysqli=mysqlnd' '--with-pdo-mysql=mysqlnd' 'PKG_CONFIG_LIBDIR=/root/emsdk/upstream/emscripten/cache/sysroot/local/lib/pkgconfig:/root/emsdk/upstream/emscripten/cache/sysroot/lib/pkgconfig'

Now is time to investigate.

[adamziel]

This could be relevant:

https://github.com/php/php-src/blob/530e0d68ebee5b21ad10311115c392072b8b4168/ext/fileinfo/config.m4#L1-L5

I'm not sure if --disable-all impacts that flag at all.

[mho22]

It seems like --disable-all disables all extensions which are enabled by default :

https://github.com/php/php-src/blob/530e0d68ebee5b21ad10311115c392072b8b4168/configure.ac#L1099

This does not confirm that it disables fileinfo either.

That said, I can't find anything about "re-enable" disabled default extensions, like :

--disable-all
--enable-fileinfo
--enable-curl

[adamziel]

Perhaps it's time to remove --disable-all and tactically disable specific extensions instead, then.

[mho22]

@adamziel Alright, I'm working on it.

[mho22]

@adamziel I tried removing --disable-all and recompiled only in 8.3 but an error occurred quickly. opcache was responsible of that error. I then added --disable-opcache and the recompilation of 8.3 succeeded.

I ran a npm run php -m to list the available php-wasm extensions and two new extensions appeared :

• fileinfo
• posix

I suppose this could be the solution. I am currently busy recompiling every PHP versions before launching the tests.

By the way, I was wondering : could there be a way to make --with-curl work for php-wasm ?