PHP: List of php.ini directives - Manual

List of `php.ini` directives

This list includes the php.ini directives that can be used to configure PHP.

The "Changeable" column shows the modes determining when and where a directive may be set. See the Changeable mode values section for their definitions.

**Configuration options**
Name	Default	Changeable	Changelog
allow_url_fopen	`"1"`	`INI_SYSTEM`
allow_url_include	`"0"`	`INI_SYSTEM`	Deprecated as of PHP 7.4.0.
arg_separator.input	`"&"`	`INI_PERDIR`
arg_separator.output	`"&"`	`INI_ALL`
assert.active	`"1"`	`INI_ALL`
assert.bail	`"0"`	`INI_ALL`
assert.callback	`null`	`INI_ALL`
assert.exception	`"0"`	`INI_ALL`
assert.quiet_eval	`"0"`	`INI_ALL`	Removed as of PHP 8.0.0
assert.warning	`"1"`	`INI_ALL`
auto_append_file	`null`	`INI_PERDIR`
auto_detect_line_endings	`"0"`	`INI_ALL`
auto_globals_jit	`"1"`	`INI_PERDIR`
auto_prepend_file	`null`	`INI_PERDIR`
bcmath.scale	"0"	`INI_ALL`
browscap	`null`	`INI_SYSTEM`
cgi.check_shebang_line	`"1"`	`INI_SYSTEM`
cgi.discard_path	`"0"`	`INI_SYSTEM`
cgi.fix_pathinfo	`"1"`	`INI_SYSTEM`
cgi.force_redirect	`"1"`	`INI_SYSTEM`
cgi.nph	`"0"`	`INI_ALL`
cgi.redirect_status_env	`null`	`INI_SYSTEM`
cgi.rfc2616_headers	`"0"`	`INI_ALL`
child_terminate	`"0"`	`INI_ALL`
cli.pager	""	`INI_ALL`
cli.prompt	"\\b \\> "	`INI_ALL`
cli_server.color	"0"	`INI_ALL`
com.allow_dcom	"0"	`INI_SYSTEM`
com.autoregister_typelib	"0"	`INI_ALL`
com.autoregister_verbose	"0"	`INI_ALL`
com.autoregister_casesensitive	"1"	`INI_ALL`
com.code_page	""	`INI_ALL`
com.dotnet_version	""	`INI_SYSTEM`	As of PHP 8.0.0
com.typelib_file	""	`INI_SYSTEM`
curl.cainfo	NULL	`INI_SYSTEM`
date.default_latitude	"31.7667"	`INI_ALL`
date.default_longitude	"35.2333"	`INI_ALL`
date.sunrise_zenith	"90.833333"	`INI_ALL`	Prior to PHP 8.0.0, the default was "90.583333"
date.sunset_zenith	"90.833333"	`INI_ALL`	Prior to PHP 8.0.0, the default was "90.583333"
date.timezone	"UTC"	`INI_ALL`	From PHP 8.2, a warning is emitted when setting this to an invalid value or an empty string.
dba.default_handler	DBA_DEFAULT	`INI_ALL`
default_charset	`"UTF-8"`	`INI_ALL`
input_encoding	`""`	`INI_ALL`
output_encoding	`""`	`INI_ALL`
internal_encoding	`""`	`INI_ALL`
default_mimetype	`"text/html"`	`INI_ALL`
default_socket_timeout	`"60"`	`INI_ALL`
disable_classes	`""`	`php.ini` only
disable_functions	`""`	`php.ini` only
display_errors	`"1"`	`INI_ALL`
display_startup_errors	`"1"`	`INI_ALL`	Prior to PHP 8.0.0, the default value was `"0"`.
docref_ext	`""`	`INI_ALL`
docref_root	`""`	`INI_ALL`
doc_root	`null`	`INI_SYSTEM`
enable_dl	`"1"`	`INI_SYSTEM`	This deprecated feature will certainly be removed in the future.
enable_post_data_reading	`"On"`	`INI_PERDIR`
engine	`"1"`	`INI_ALL`
error_append_string	`null`	`INI_ALL`
error_log	`null`	`INI_ALL`
error_log_mode	`0o644`	`INI_ALL`	Available as of PHP 8.2.0
error_prepend_string	`null`	`INI_ALL`
error_reporting	`null`	`INI_ALL`
exif.encode_unicode	"ISO-8859-15"	`INI_ALL`
exif.decode_unicode_motorola	"UCS-2BE"	`INI_ALL`
exif.decode_unicode_intel	"UCS-2LE"	`INI_ALL`
exif.encode_jis	""	`INI_ALL`
exif.decode_jis_motorola	"JIS"	`INI_ALL`
exif.decode_jis_intel	"JIS"	`INI_ALL`
exit_on_timeout	`""`	`INI_ALL`
expect.timeout	"10"	`INI_ALL`
expect.loguser	"1"	`INI_ALL`
expect.logfile	""	`INI_ALL`
expect.match_max	""	`INI_ALL`
expose_php	`"1"`	`php.ini` only
extension	`null`	`php.ini` only
extension_dir	`"/path/to/php"`	`INI_SYSTEM`
fastcgi.impersonate	`"0"`	`INI_SYSTEM`
fastcgi.logging	`"1"`	`INI_SYSTEM`
file_uploads	`"1"`	`INI_SYSTEM`
filter.default	"unsafe_raw"	`INI_PERDIR`	Deprecated as of PHP 8.1.0.
filter.default_flags	NULL	`INI_PERDIR`
from	`""`	`INI_ALL`
gd.jpeg_ignore_warning	"1"	`INI_ALL`
geoip.custom_directory	""	`INI_ALL`
hard_timeout	`"2"`	`INI_SYSTEM`	Available as of PHP 7.1.0.
highlight.comment	`"#FF8000"`	`INI_ALL`
highlight.default	`"#0000BB"`	`INI_ALL`
highlight.html	`"#000000"`	`INI_ALL`
highlight.keyword	`"#007700"`	`INI_ALL`
highlight.string	`"#DD0000"`	`INI_ALL`
html_errors	`"1"`	`INI_ALL`
ibase.allow_persistent	"1"	`INI_SYSTEM`
ibase.max_persistent	"-1"	`INI_SYSTEM`
ibase.max_links	"-1"	`INI_SYSTEM`
ibase.default_db	NULL	`INI_SYSTEM`
ibase.default_user	NULL	`INI_ALL`
ibase.default_password	NULL	`INI_ALL`
ibase.default_charset	NULL	`INI_ALL`
ibase.timestampformat	"%Y-%m-%d %H:%M:%S"	`INI_ALL`
ibase.dateformat	"%Y-%m-%d"	`INI_ALL`
ibase.timeformat	"%H:%M:%S"	`INI_ALL`
ibm_db2.binmode	"1"	`INI_ALL`
ibm_db2.i5_all_pconnect	"0"	`INI_SYSTEM`	Available as of ibm_db2 1.6.5.
ibm_db2.i5_allow_commit	"0"	`INI_SYSTEM`	Available as of ibm_db2 1.4.9.
ibm_db2.i5_blank_userid	"0"	`INI_SYSTEM`	Available as of ibm_db2 1.9.7.
ibm_db2.i5_char_trim	"0"	`INI_SYSTEM`	Available as of ibm_db2 2.1.0.
ibm_db2.i5_dbcs_alloc	"0"	`INI_SYSTEM`	Available as of ibm_db2 1.5.0.
ibm_db2.i5_guard_profile	"0"	`INI_SYSTEM`	Available as of ibm_db2 1.9.7.
ibm_db2.i5_ignore_userid	"0"	`INI_SYSTEM`	Available as of ibm_db2 1.8.0.
ibm_db2.i5_job_sort	"0"	`INI_SYSTEM`	Available as of ibm_db2 1.8.4.
ibm_db2.i5_log_verbose	"0"	`INI_SYSTEM`	Available as of ibm_db2 1.9.7.
ibm_db2.i5_max_pconnect	"0"	`INI_SYSTEM`	Available as of ibm_db2 1.9.7.
ibm_db2.i5_override_ccsid	"0"	`INI_SYSTEM`	Available as of ibm_db2 1.9.7.
ibm_db2.i5_servermode_subsystem	NULL	`INI_SYSTEM`	Available as of ibm_db2 1.9.7.
ibm_db2.i5_sys_naming	"0"	`INI_SYSTEM`	Available as of ibm_db2 1.9.7.
ibm_db2.instance_name	NULL	`INI_SYSTEM`	Available as of ibm_db2 1.0.2.
iconv.input_encoding	""	`INI_ALL`	Deprecated in PHP 5.6.0.
iconv.output_encoding	""	`INI_ALL`	Deprecated in PHP 5.6.0.
iconv.internal_encoding	""	`INI_ALL`	Deprecated in PHP 5.6.0.
ignore_repeated_errors	`"0"`	`INI_ALL`
ignore_repeated_source	`"0"`	`INI_ALL`
ignore_user_abort	`"0"`	`INI_ALL`
implicit_flush	`"0"`	`INI_ALL`
include_path	`".:/path/to/php/pear"`	`INI_ALL`
intl.default_locale		`INI_ALL`
intl.error_level	0	`INI_ALL`
intl.use_exceptions	0	`INI_ALL`	Available since PECL 3.0.0a1
last_modified	`"0"`	`INI_ALL`
ldap.max_links	"-1"	`INI_SYSTEM`
log_errors	`"0"`	`INI_ALL`
log_errors_max_len	`"1024"`	`INI_ALL`
mail.add_x_header	`"0"`	`INI_PERDIR`
mail.force_extra_parameters	`null`	`php.ini` only
mail.log	`""`	`INI_PERDIR`
max_execution_time	`"30"`	`INI_ALL`
max_input_nesting_level	`"64"`	`INI_PERDIR`
max_input_vars	`1000`	`INI_PERDIR`
max_input_time	`"-1"`	`INI_PERDIR`
mbstring.language	"neutral"	`INI_ALL`
mbstring.detect_order	NULL	`INI_ALL`
mbstring.http_input	"pass"	`INI_ALL`	Deprecated
mbstring.http_output	"pass"	`INI_ALL`	Deprecated
mbstring.internal_encoding	NULL	`INI_ALL`	Deprecated
mbstring.substitute_character	NULL	`INI_ALL`
mbstring.func_overload	"0"	`INI_SYSTEM`	Deprecated as of PHP 7.2.0; removed as of PHP 8.0.0.
mbstring.encoding_translation	"0"	`INI_PERDIR`
mbstring.http_output_conv_mimetypes	"^(text/\|application/xhtml\+xml)"	`INI_ALL`
mbstring.strict_detection	"0"	`INI_ALL`
mbstring.regex_retry_limit	"1000000"	`INI_ALL`	Available as of PHP 7.4.0.
mbstring.regex_stack_limit	"100000"	`INI_ALL`	Available as of PHP 7.3.5.
mcrypt.algorithms_dir	`null`	`INI_ALL`
mcrypt.modes_dir	`null`	`INI_ALL`
memcache.allow_failover	"1"	`INI_ALL`	Available since memcache 2.0.2.
memcache.max_failover_attempts	"20"	`INI_ALL`	Available since memcache 2.1.0.
memcache.chunk_size	"8192"	`INI_ALL`	Available since memcache 2.0.2.
memcache.default_port	"11211"	`INI_ALL`	Available since memcache 2.0.2.
memcache.hash_strategy	"standard"	`INI_ALL`	Available since memcache 2.2.0.
memcache.hash_function	"crc32"	`INI_ALL`	Available since memcache 2.2.0.
memcache.protocol	ascii	`INI_ALL`	Supported since memcache 3.0.0
memcache.redundancy	1	`INI_ALL`	Supported since memcache 3.0.0
memcache.session_redundancy	2	`INI_ALL`	Supported since memcache 3.0.0
memcache.compress_threshold	20000	`INI_ALL`	Supported since memcache 3.0.3
memcache.lock_timeout	15	`INI_ALL`	Supported since memcache 3.0.4
memory_limit	`"128M"`	`INI_ALL`
mysql.allow_local_infile	"1"	`INI_SYSTEM`
mysql.allow_persistent	"1"	`INI_SYSTEM`
mysql.max_persistent	"-1"	`INI_SYSTEM`
mysql.max_links	"-1"	`INI_SYSTEM`
mysql.trace_mode	"0"	`INI_ALL`
mysql.default_port	NULL	`INI_ALL`
mysql.default_socket	NULL	`INI_ALL`
mysql.default_host	NULL	`INI_ALL`
mysql.default_user	NULL	`INI_ALL`
mysql.default_password	NULL	`INI_ALL`
mysql.connect_timeout	"60"	`INI_ALL`
mysqli.allow_local_infile	"0"	`INI_SYSTEM`	Before PHP 7.2.16 and 7.3.3 the default was "1".
mysqli.local_infile_directory		`INI_SYSTEM`	Available as of PHP 8.1.0.
mysqli.allow_persistent	"1"	`INI_SYSTEM`
mysqli.max_persistent	"-1"	`INI_SYSTEM`
mysqli.max_links	"-1"	`INI_SYSTEM`
mysqli.default_port	"3306"	`INI_ALL`
mysqli.default_socket	NULL	`INI_ALL`
mysqli.default_host	NULL	`INI_ALL`
mysqli.default_user	NULL	`INI_ALL`
mysqli.default_pw	NULL	`INI_ALL`
mysqli.reconnect	"0"	`INI_SYSTEM`	Removed as of PHP 8.2.0
mysqli.rollback_on_cached_plink	"0"	`INI_SYSTEM`
mysqlnd.collect_statistics	"1"	`INI_SYSTEM`
mysqlnd.collect_memory_statistics	"0"	`INI_SYSTEM`
mysqlnd.debug	""	`INI_SYSTEM`
mysqlnd.log_mask	0	`INI_ALL`
mysqlnd.mempool_default_size	16000	`INI_ALL`
mysqlnd.net_read_timeout	"86400"	`INI_ALL`	Before PHP 7.2.0 the default value was "31536000" and the changeability was `INI_SYSTEM`
mysqlnd.net_cmd_buffer_size	"4096"	`INI_SYSTEM`
mysqlnd.net_read_buffer_size	"32768"	`INI_SYSTEM`
mysqlnd.sha256_server_public_key	""	`INI_PERDIR`
mysqlnd.trace_alloc	""	`INI_SYSTEM`
mysqlnd.fetch_data_copy	0	`INI_ALL`	Removed as of PHP 8.1.0
oci8.connection_class	""	`INI_ALL`
oci8.default_prefetch	"100"	`INI_SYSTEM`
oci8.events	Off	`INI_SYSTEM`
oci8.max_persistent	"-1"	`INI_SYSTEM`
oci8.old_oci_close_semantics	Off	`INI_SYSTEM`	Deprecated as of PHP 8.1.0.
oci8.persistent_timeout	"-1"	`INI_SYSTEM`
oci8.ping_interval	"60"	`INI_SYSTEM`
oci8.prefetch_lob_size	"0"	`INI_SYSTEM`	Available since PECL OCI8 3.2.
oci8.privileged_connect	Off	`INI_SYSTEM`
oci8.statement_cache_size	"20"	`INI_SYSTEM`
odbc.default_db *	NULL	`INI_ALL`
odbc.default_user *	NULL	`INI_ALL`
odbc.default_pw *	NULL	`INI_ALL`
odbc.allow_persistent	"1"	`INI_SYSTEM`
odbc.check_persistent	"1"	`INI_SYSTEM`
odbc.max_persistent	"-1"	`INI_SYSTEM`
odbc.max_links	"-1"	`INI_SYSTEM`
odbc.defaultlrl	"4096"	`INI_ALL`
odbc.defaultbinmode	"1"	`INI_ALL`
odbc.default_cursortype	"3"	`INI_ALL`
opcache.enable	"1"	`INI_ALL`
opcache.enable_cli	"0"	`INI_SYSTEM`	Between PHP 7.1.2 and 7.1.6 inclusive, the default was "1"
opcache.memory_consumption	"128"	`INI_SYSTEM`
opcache.interned_strings_buffer	"8"	`INI_SYSTEM`
opcache.max_accelerated_files	"10000"	`INI_SYSTEM`
opcache.max_wasted_percentage	"5"	`INI_SYSTEM`
opcache.use_cwd	"1"	`INI_SYSTEM`
opcache.validate_timestamps	"1"	`INI_ALL`
opcache.revalidate_freq	"2"	`INI_ALL`
opcache.revalidate_path	"0"	`INI_ALL`
opcache.save_comments	"1"	`INI_SYSTEM`
opcache.fast_shutdown	"0"	`INI_SYSTEM`	Removed in PHP 7.2.0
opcache.enable_file_override	"0"	`INI_SYSTEM`
opcache.optimization_level	"0x7FFEBFFF"	`INI_SYSTEM`	Changed from 0x7FFFBFFF in PHP 7.3.0
opcache.inherited_hack	"1"	`INI_SYSTEM`	Removed in PHP 7.3.0
opcache.dups_fix	"0"	`INI_ALL`
opcache.blacklist_filename	""	`INI_SYSTEM`
opcache.max_file_size	"0"	`INI_SYSTEM`
opcache.consistency_checks	"0"	`INI_ALL`	Disabled as of 8.1.18 and 8.2.5. Removed as of PHP 8.3.0.
opcache.force_restart_timeout	"180"	`INI_SYSTEM`
opcache.error_log	""	`INI_SYSTEM`
opcache.log_verbosity_level	"1"	`INI_SYSTEM`
opcache.record_warnings	"0"	`INI_SYSTEM`	Available as of PHP 8.0.0
opcache.preferred_memory_model	""	`INI_SYSTEM`
opcache.protect_memory	"0"	`INI_SYSTEM`
opcache.mmap_base	`null`	`INI_SYSTEM`
opcache.restrict_api	""	`INI_SYSTEM`
opcache.file_update_protection	"2"	`INI_ALL`
opcache.huge_code_pages	"0"	`INI_SYSTEM`
opcache.lockfile_path	"/tmp"	`INI_SYSTEM`
opcache.opt_debug_level	"0"	`INI_SYSTEM`	Available as of PHP 7.1.0
opcache.file_cache	NULL	`INI_SYSTEM`
opcache.file_cache_only	"0"	`INI_SYSTEM`
opcache.file_cache_consistency_checks	"1"	`INI_SYSTEM`
opcache.file_cache_fallback	"1"	`INI_SYSTEM`	Windows only.
opcache.validate_permission	"0"	`INI_SYSTEM`	Available as of PHP 7.0.14
opcache.validate_root	"0"	`INI_SYSTEM`	Available as of PHP 7.0.14
opcache.preload	""	`INI_SYSTEM`	Available as of PHP 7.4.0
opcache.preload_user	""	`INI_SYSTEM`	Available as of PHP 7.4.0
opcache.cache_id	""	`INI_SYSTEM`	Windows only. Available as of PHP 7.4.0
opcache.jit	"tracing"	`INI_ALL`	Available as of PHP 8.0.0
opcache.jit_buffer_size	"0"	`INI_SYSTEM`	Available as of PHP 8.0.0
opcache.jit_debug	"0"	`INI_ALL`	Available as of PHP 8.0.0
opcache.jit_bisect_limit	"0"	`INI_ALL`	Available as of PHP 8.0.0
opcache.jit_prof_threshold	"0.005"	`INI_ALL`	Available as of PHP 8.0.0
opcache.jit_max_root_traces	"1024"	`INI_SYSTEM`	Available as of PHP 8.0.0
opcache.jit_max_side_traces	"128"	`INI_SYSTEM`	Available as of PHP 8.0.0
opcache.jit_max_exit_counters	"8192"	`INI_SYSTEM`	Available as of PHP 8.0.0
opcache.jit_hot_loop	"64"	`INI_SYSTEM`	Available as of PHP 8.0.0
opcache.jit_hot_func	"127"	`INI_SYSTEM`	Available as of PHP 8.0.0
opcache.jit_hot_return	"8"	`INI_SYSTEM`	Available as of PHP 8.0.0
opcache.jit_hot_side_exit	"8"	`INI_SYSTEM`	Available as of PHP 8.0.0
opcache.jit_blacklist_root_trace	"16"	`INI_ALL`	Available as of PHP 8.0.0
opcache.jit_blacklist_side_trace	"8"	`INI_ALL`	Available as of PHP 8.0.0
opcache.jit_max_loop_unrolls	"8"	`INI_ALL`	Available as of PHP 8.0.0
opcache.jit_max_recursive_calls	"2"	`INI_ALL`	Available as of PHP 8.0.0
opcache.jit_max_recursive_returns	"2"	`INI_ALL`	Available as of PHP 8.0.0
opcache.jit_max_polymorphic_calls	"2"	`INI_ALL`	Available as of PHP 8.0.0
open_basedir	`null`	`INI_ALL`
output_buffering	`"0"`	`INI_PERDIR`
output_handler	`null`	`INI_PERDIR`
pcre.backtrack_limit	"1000000"	`INI_ALL`
pcre.recursion_limit	"100000"	`INI_ALL`
pcre.jit	"1"	`INI_ALL`
pdo.dsn.*		`php.ini` only
pdo_odbc.connection_pooling	"strict"	`INI_ALL`
pdo_odbc.db2_instance_name	NULL	`INI_SYSTEM`	This deprecated feature will certainly be removed in the future.
pgsql.allow_persistent	"1"	`INI_SYSTEM`
pgsql.max_persistent	"-1"	`INI_SYSTEM`
pgsql.max_links	"-1"	`INI_SYSTEM`
pgsql.auto_reset_persistent	"0"	`INI_SYSTEM`
pgsql.ignore_notice	"0"	`INI_ALL`
pgsql.log_notice	"0"	`INI_ALL`
phar.readonly	"1"	`INI_ALL`
phar.require_hash	"1"	`INI_ALL`
phar.cache_list	""	`INI_SYSTEM`
post_max_size	`"8M"`	`INI_PERDIR`
precision	`"14"`	`INI_ALL`
realpath_cache_size	`"16K"`	`INI_SYSTEM`
realpath_cache_ttl	`"120"`	`INI_SYSTEM`
register_argc_argv	`"1"`	`INI_PERDIR`
report_memleaks	`"1"`	`INI_ALL`
report_zend_debug	`"1"`	`INI_ALL`
request_order	`""`	`INI_PERDIR`
runkit.superglobal	""	`INI_PERDIR`
runkit.internal_override	"0"	`INI_SYSTEM`
sendmail_from	`null`	`INI_ALL`
sendmail_path	`"/usr/sbin/sendmail -t -i"`	`INI_SYSTEM`
serialize_precision	`"-1"`	`INI_ALL`	Prior to PHP 7.1.0, the default value was `17`.
session.save_path	""	`INI_ALL`
session.name	"PHPSESSID"	`INI_ALL`
session.save_handler	"files"	`INI_ALL`
session.auto_start	"0"	`INI_PERDIR`
session.gc_probability	"1"	`INI_ALL`
session.gc_divisor	"100"	`INI_ALL`
session.gc_maxlifetime	"1440"	`INI_ALL`
session.serialize_handler	"php"	`INI_ALL`
session.cookie_lifetime	"0"	`INI_ALL`
session.cookie_path	"/"	`INI_ALL`
session.cookie_domain	""	`INI_ALL`
session.cookie_secure	"0"	`INI_ALL`	Prior to PHP 7.2.0, the default was `""`.
session.cookie_httponly	"0"	`INI_ALL`	Prior to PHP 7.2.0, the default was `""`.
session.cookie_samesite	""	`INI_ALL`	Available as of PHP 7.3.0.
session.use_strict_mode	"0"	`INI_ALL`
session.use_cookies	"1"	`INI_ALL`
session.use_only_cookies	"1"	`INI_ALL`
session.referer_check	""	`INI_ALL`
session.cache_limiter	"nocache"	`INI_ALL`
session.cache_expire	"180"	`INI_ALL`
session.use_trans_sid	"0"	`INI_ALL`
session.trans_sid_tags	"a=href,area=href,frame=src,form="	`INI_ALL`	Available as of PHP 7.1.0.
session.trans_sid_hosts	`$_SERVER['HTTP_HOST']`	`INI_ALL`	Available as of PHP 7.1.0.
session.sid_length	"32"	`INI_ALL`	Available as of PHP 7.1.0.
session.sid_bits_per_character	"4"	`INI_ALL`	Available as of PHP 7.1.0.
session.upload_progress.enabled	"1"	`INI_PERDIR`
session.upload_progress.cleanup	"1"	`INI_PERDIR`
session.upload_progress.prefix	"upload_progress_"	`INI_PERDIR`
session.upload_progress.name	"PHP_SESSION_UPLOAD_PROGRESS"	`INI_PERDIR`
session.upload_progress.freq	"1%"	`INI_PERDIR`
session.upload_progress.min_freq	"1"	`INI_PERDIR`
session.lazy_write	"1"	`INI_ALL`
session.hash_function	"0"	`INI_ALL`	Removed as of PHP 7.1.0.
session.hash_bits_per_character	"4"	`INI_ALL`	Removed as of PHP 7.1.0.
session.entropy_file	""	`INI_ALL`	Removed as of PHP 7.1.0.
session.entropy_length	"0"	`INI_ALL`	Removed as of PHP 7.1.0
short_open_tag	`"1"`	`INI_PERDIR`
SMTP	`"localhost"`	`INI_ALL`
smtp_port	`"25"`	`INI_ALL`
soap.wsdl_cache_enabled	1	`INI_ALL`
soap.wsdl_cache_dir	/tmp	`INI_ALL`
soap.wsdl_cache_ttl	86400	`INI_ALL`
soap.wsdl_cache	1	`INI_ALL`
soap.wsdl_cache_limit	5	`INI_ALL`
sql.safe_mode	`"0"`	`INI_SYSTEM`	Removed as of PHP 7.2.0
sqlite3.extension_dir	""	`INI_SYSTEM`
sqlite3.defensive	1	`INI_USER`	Available as of PHP 7.2.17 and 7.3.4 for libsqlite ≥ 3.26.0. Prior to PHP 8.2.0 this setting was changeable only as `INI_SYSTEM`.
syslog.facility	`"LOG_USER"`	`INI_SYSTEM`	Available as of PHP 7.3.0.
syslog.filter	`"no-ctrl"`	`INI_ALL`	Available as of PHP 7.3.0.
syslog.ident	`"php"`	`INI_SYSTEM`	Available as of PHP 7.3.0.
sys_temp_dir	`""`	`INI_SYSTEM`
sysvshm.init_mem	10000	`INI_SYSTEM`
tidy.default_config	""	`INI_SYSTEM`
tidy.clean_output	"0"	`INI_USER`
track_errors	`"0"`	`INI_ALL`	Deprecated as of PHP 7.2.0, removed as of PHP 8.0.0
unserialize_callback_func	`null`	`INI_ALL`
unserialize_max_depth	"4096"	`INI_ALL`	Available as of PHP 7.4.0.
uploadprogress.file.filename_template	`"/tmp/upt_%s.txt"`	`INI_ALL`
upload_max_filesize	`"2M"`	`INI_PERDIR`
max_file_uploads	`20`	`INI_SYSTEM`
upload_tmp_dir	`null`	`INI_SYSTEM`
url_rewriter.hosts	`""`	`INI_ALL`	Available as of PHP 7.1.0.
url_rewriter.tags	`"form="`	`INI_ALL`	Prior to PHP 7.1.0, the default value was `"a=href,area=href,frame=src,form=,fieldset="`.
user_agent	`null`	`INI_ALL`
user_dir	`null`	`INI_SYSTEM`
user_ini.cache_ttl	`"300"`	`INI_SYSTEM`
user_ini.filename	`".user.ini"`	`INI_SYSTEM`
uopz.disable	"0"	`INI_SYSTEM`	Available as of uopz 5.0.2
uopz.exit	"0"	`INI_SYSTEM`	Available as of uopz 6.0.1
uopz.overloads	"1"	`INI_SYSTEM`	Available as of uopz 2.0.2. Removed as of uopz 5.0.0.
variables_order	`"EGPCS"`	`INI_PERDIR`
windows.show_crt_warning	`"0"`	`INI_ALL`
xbithack	`"0"`	`INI_ALL`
xmlrpc_errors	`"0"`	`INI_SYSTEM`
xmlrpc_error_number	`"0"`	`INI_ALL`
yaz.keepalive	`"120"`	`INI_ALL`
yaz.log_mask	`null`	`INI_ALL`	Available as of yaz 1.0.3.
zend.assertions	`"1"`	`INI_ALL`
zend.detect_unicode	`"1"`	`INI_ALL`
zend.enable_gc	`"1"`	`INI_ALL`
zend.multibyte	`"0"`	`INI_PERDIR`
zend.script_encoding	`null`	`INI_ALL`
zend.signal_check	`"0"`	`INI_SYSTEM`
zend_extension	`null`	`php.ini` only
zlib.output_compression	"0"	`INI_ALL`
zlib.output_compression_level	"-1"	`INI_ALL`
zlib.output_handler	""	`INI_ALL`