php.ini配置

為了使自己的程式在不同的平台中擁有更好的相容性，很多時候我們都要擷取目前Php的運作環境參數。比如我們常用到的：擷取magic_quotes_gpc狀态，來決定當表單送出時我們是否轉義(addslashes)資料；設定max_execution_time來延長程式的執行時間；設定error_reporting使自己的項目在開發與營運階段切換；設定memory_limit加大記憶體等等…

參數清單如下

Name	Default	Changeable
com.allow_dcom	“0″	PHP_INI_SYSTEM
com.autoregister_typelib
com.autoregister_verbose
com.autoregister_casesensitive	“1″
com.typelib_file	“”
crack.default_dictionary	NULL
exif.encode_unicode	“ISO-8859-15″	PHP_INI_ALL
exif.decode_unicode_motorola	“UCS-2BE”
exif.decode_unicode_intel	“UCS-2LE”
exif.encode_jis
exif.decode_jis_motorola	“JIS”
exif.decode_jis_intel
fbsql.allow_persistent
fbsql.generate_warnings
fbsql.autocommit
fbsql.max_persistent	“-1″
fbsql.max_links	“128″
fbsql.max_connections
fbsql.max_results
fbsql.batchSize	“1000″
fbsql.default_host
fbsql.default_user	“_SYSTEM”
fbsql.default_password
fbsql.default_database
fbsql.default_database_password
hwapi.allow_persistent
hyperwave.allow_persistent
hyperwave.default_port	“418″
iconv.input_encoding	ICONV_INPUT_ENCODING
iconv.output_encoding	ICONV_OUTPUT_ENCODING
iconv.internal_encoding	ICONV_INTERNAL_ENCODING
ifx.allow_persistent
ifx.max_persistent
ifx.max_links
ifx.default_host
ifx.default_user
ifx.default_password
ifx.blobinfile
ifx.textasvarchar
ifx.byteasvarchar
ifx.charasvarchar
ifx.nullformat
ingres.allow_persistent
ingres.max_persistent
ingres.max_links
ingres.default_database
ingres.default_user
ingres.default_password
ibase.allow_persistent
ibase.max_persistent
ibase.max_links
ibase.default_user
ibase.default_password
ibase.timestampformat	“%m/%d/%Y%H:%M:%S”
ibase.dateformat	“%m/%d/%Y”
ibase.timeformat	“%H:%M:%S”
java.class.path
java.home
java.library.path
java.library	JAVALIB
ldap.max_links
mbstring.detect_order
mbstring.http_input
mbstring.http_output
mbstring.internal_encoding
mbstring.substitute_character
mbstring.func_overload
mcrypt.algorithms_dir
mcrypt.modes_dir
mime_magic.magicfile	“/usr/share/misc/magic.mime”
mssql.allow_persistent
mssql.max_persistent
mssql.max_links
mssql.max_procs	“25″
mssql.min_error_severity	“10″
mssql.min_message_severity
mssql.compatability_mode
mssql.connect_timeout	“5″
mssql.timeout	“60″
mssql.textsize
mssql.textlimit
mssql.batchsize
mssql.datetimeconvert
mssql.secure_connection
mysql.allow_persistent
mysql.max_persistent
mysql.max_links
mysql.default_host
mysql.default_user
mysql.default_password
mysql.default_port
mysql.default_socket
ncurses.value	“42″
ncurses.string	“foobar”
odbc.allow_persistent
odbc.max_persistent
odbc.max_links
odbc.default_db
odbc.default_user
odbc.default_pw
odbc.defaultlrl	“4096″
odbc.defaultbinmode
odbc.check_persistent
pfpro.defaulthost	“test.signio.com”
	“test-payflow.verisign.com”
pfpro.defaultport	“443″
pfpro.defaulttimeout	“30″
pfpro.proxyaddress
pfpro.proxyport
pfpro.proxylogon
pfpro.proxypassword
pgsql.allow_persistent
pgsql.max_persistent
pgsql.max_links
pgsql.auto_reset_persistent
pgsql.ignore_notice
pgsql.log_notice
session.save_path	“/tmp”
session.name	“PHPSESSID”
session.save_handler	“files”
session.auto_start
session.gc_probability
session.gc_divisor	“100″
session.gc_maxlifetime	“1440″
session.serialize_handler	“php”
session.cookie_lifetime
session.cookie_path	“/”
session.cookie_domain
session.cookie_secure
session.use_cookies
session.use_only_cookies
session.referer_check
session.entropy_file
session.entropy_length
session.cache_limiter	“nocache”
session.cache_expire	“180″
session.use_trans_sid		PHP_INI_PERDIR
session.encode_sources	“globals,track”
assert.active
assert.bail
assert.warning
assert.callback
assert.quiet_eval
safe_mode_protected_env_vars	SAFE_MODE_PROTECTED_ENV_VARS
safe_mode_allowed_env_vars	SAFE_MODE_ALLOWED_ENV_VARS
url_rewriter.tags	“a=href,area=href, frame=src, form=fakeentry”
sybct.allow_persistent
sybct.max_persistent
sybct.max_links
sybct.min_server_severity
sybct.min_client_severity
sybct.hostname
vpopmail.directory
zlib.output_compression
zlib.output_compression_level
define_syslog_variables
highlight.bg	HL_BG_COLOR
highlight.comment	HL_COMMENT_COLOR
highlight.default	HL_DEFAULT_COLOR
highlight.html	HL_HTML_COLOR
highlight.keyword	HL_KEYWORD_COLOR
highlight.string	HL_StrING_COLOR
allow_call_time_pass_reference
asp_tags
display_errors
display_startup_errors
enable_dl
expose_php
html_errors
xmlrpc_errors
xmlrpc_error_number
ignore_user_abort
implicit_flush
log_errors
log_errors_max_len	“1024″
ignore_repeated_errors
ignore_repeated_source
magic_quotes_gpc		PHP_INI_PERDIR PHP_INI_SYSTEM
magic_quotes_runtime
magic_quotes_sybase
output_buffering
output_handler
register_argc_argv
register_globals
safe_mode
safe_mode_include_dir
safe_mode_gid
short_open_tag	DEFAULT_SHORT_OPEN_TAG
sql.safe_mode
track_errors
y2k_compliance
unserialize_callback_func
arg_separator.output	“&”
arg_separator.input
auto_append_file
auto_prepend_file
doc_root
default_charset	SAPI_DEFAULT_CHARSET
default_mimetype	SAPI_DEFAULT_MIMETYPE
error_log
extension_dir	PHP_EXTENSION_DIR
gpc_order	“GPC”
include_path	PHP_INCLUDE_PAth
max_execution_time
open_basedir
safe_mode_exec_dir
upload_max_filesize	“2M”
file_uploads
post_max_size	“8M”
upload_tmp_dir
user_dir
variables_order
error_append_string
error_prepend_string
SMTP	“localhost”
smtp_port	25
browscap
error_reporting
memory_limit
precision	“14″
sendmail_from
sendmail_path	DEFAULT_SENDMAIL_PAth
disable_classes		php.ini only
disable_functions
allow_url_fopen
always_populate_raw_post_data
xbithack
engine
last_modified
child_terminate
async_send

操作範圍

Constant	Value	Meaning
PHP_INI_USER	1	Entry can be set in user scripts
	2	Entry can be set in php.ini, .htaccess or httpd.conf
	4	Entry can be set in php.ini or httpd.conf
	7	Entry can be set anywhere