/etc/php.d/bitrixenv.ini

Часто бывает bitrixenv.ini обнуляется, бэкап этого конфига из чистой установки битрикса

; Set parameters required for proper Bitrix engine functioning.
; You can redefine parameters specified in this file
; by editing /etc/php.d/z_bx_custom_settings.ini

; Configure error processing
display_errors = On
error_reporting = E_ALL & ~E_NOTICE & ~E_WARNING

; Set some more PHP parameters
enable_dl = Off
short_open_tag = On
allow_url_fopen = On

; Change default values of important constants
max_input_vars = 10000
max_file_uploads = 100
max_execution_time = 300
post_max_size = 1024M
upload_max_filesize = 1024M
pcre.backtrack_limit = 1000000
pcre.recursion_limit = 14000
realpath_cache_size = 4096k
mysql.default_socket = /var/lib/mysqld/mysqld.sock
mysqli.default_socket = /var/lib/mysqld/mysqld.sock

; Utf-8 support
mbstring.func_overload = 2
mbstring.internal_encoding = UTF-8

; Configure PHP sessions
session.entropy_length = 128
session.entropy_file = /dev/urandom
session.save_path = "/tmp/php_sessions/www"
session.cookie_httponly = On

; Set directory for temporary files
upload_tmp_dir = "/tmp/php_upload/www"

sendmail_path = msmtp -t -i
date.timezone = Europe/Moscow
memory_limit = 256M