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[2000-07-06 18:00 UTC] whole at gmx dot net
System: WIN NT 4.0 SERVER US English, Option Pack 4.0 with IIS 4.0, Service Pack 6a PHP 4.0.1pl2 as CGI Until version 3.0.16 system() and related functions properly did output any response of the executed commands. (for system() at least the last line of the response) From 4.0.0 on that doesn't work anymore. How come? Will this be fixed or do I have to stick with 3.0.16 (I'd rather like to use the new features like sessions and so on in version 4) Does this have to do with the new implementation of the output buffering? PatchesPull RequestsHistoryAllCommentsChangesGit/SVN commits
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Last updated: Mon Oct 27 12:00:02 2025 UTC |
so doesn?t system('dir'); work for you? I?m on Win2k and it works, you just need to output the returned value. If I want to supress it I turn ob_buffering on... watch you php.ini if it?s turned on, if it is, turn it off and try again... for debuggin scripts you should turn implicit_flush=on, then you?ll get every result printeduser feedback: BD> so doesn?t BD> system('dir'); BD> work for you? Nope. Neither do exec() or passthru() return any output. I tried it on WIN NT 4.0/IIS 4 and on W2K/IIS 5, in both cases PHP is running as CGI. BD> I?m on Win2k and it works, you just need to output the returned value. $test_out=system("dir"); echo $testout; - nothing. And actually, as far as I dig it, system() returns AND outputs automatically at least the last line of the commands' output. (give it a try under unix: system("ls -la"); prints out the whole directory content in one line. What is going wrong then? It worked perfectly from 3.0.12 to 3.0.16! BD> If I want to supress it I turn ob_buffering on... I tried EVERYTHING that has to do with buffering. No chance. BD> watch you php.ini if it?s turned on, if it is, turn it off and try again... Did that more than once. BD> for debuggin scripts you should turn implicit_flush=on, then you?ll get every result printed Not even then. No output. How come it works for your system? Something MUST be different... let's find it out, if you like! In our Intranet apps I work a lot with system(), but I would like to use the new features of Ver 4 as well...Here you go: [PHP] ;;;;;;;;;;;;;;;;;;;; ; Language Options ; ;;;;;;;;;;;;;;;;;;;; engine = On ; Enable the PHP scripting language engine under Apache short_open_tag = On ; allow the <? tag. otherwise, only <?php and <script> tags are recognized. asp_tags = Off ; allow ASP-style <% %> tags precision = 14 ; number of significant digits displayed in floating point numbers y2k_compliance = Off ; whether to be year 2000 compliant (will cause problems with non y2k compliant browsers) output_buffering = Off ; Output buffering allows you to send header lines (including cookies) ; even after you send body content, in the price of slowing PHP's ; output layer a bit. ; You can enable output buffering by in runtime by calling the output ; buffering functions, or enable output buffering for all files ; by setting this directive to On. implicit_flush = Off ; Implicit flush tells PHP to tell the output layer to flush itself ; automatically after every output block. This is equivalent to ; calling the PHP function flush() after each and every call to print() ; or echo() and each and every HTML block. ; Turning this option on has serious performance implications, and ; is generally recommended for debugging purposes only. allow_call_time_pass_reference = Off ; whether to enable the ability to force arguments to be ; passed by reference at function-call time. This method ; is deprecated, and is likely to be unsupported in future ; versions of PHP/Zend. The encouraged method of specifying ; which arguments should be passed by reference is in the ; function declaration. You're encouraged to try and ; turn this option Off, and make sure your scripts work ; properly with it, to ensure they will work with future ; versions of the language (you will receive a warning ; each time you use this feature, and the argument will ; be passed by value instead of by reference). ; Safe Mode safe_mode = Off safe_mode_exec_dir = safe_mode_allowed_env_vars = PHP_ ; Setting certain environment variables ; may be a potential security breach. ; This directive contains a comma-delimited ; list of prefixes. In Safe Mode, the ; user may only alter environment ; variables whose names begin with the ; prefixes supplied here. ; By default, users will only be able ; to set environment variables that begin ; with PHP_ (e.g. PHP_FOO=BAR). ; Note: If this directive is empty, PHP ; will let the user modify ANY environment ; variable! safe_mode_protected_env_vars = LD_LIBRARY_PATH ; This directive contains a comma- ; delimited list of environment variables, ; that the end user won't be able to ; change using putenv(). ; These variables will be protected ; even if safe_mode_allowed_env_vars is ; set to allow to change them. ; Colors for Syntax Highlighting mode. Anything that's acceptable in <font color=???> would work. highlight.string = #DD0000 highlight.comment = #FF8000 highlight.keyword = #007700 highlight.bg = #FFFFFF highlight.default = #0000BB highlight.html = #000000 ; Misc expose_php = Off ; Decides whether PHP may expose the fact that it is installed on the ; server (e.g., by adding its signature to the Web server header). ; It is no security threat in any way, but it makes it possible ; to determine whether you use PHP on your server or not. ;;;;;;;;;;;;;;;;;;; ; Resource Limits ; ;;;;;;;;;;;;;;;;;;; max_execution_time = 60 ; Maximum execution time of each script, in seconds (UNIX only) memory_limit = 16777216 ; Maximum amount of memory a script may consume (16MB) ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; Error handling and logging ; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; error_reporting is a bit-field. Or each number up to get desired error reporting level ; E_ALL - All errors and warnings ; E_ERROR - fatal run-time errors ; E_WARNING - run-time warnings (non fatal errors) ; E_PARSE - compile-time parse errors ; E_NOTICE - run-time notices (these are warnings which often result from a bug in ; your code, but it's possible that it was intentional (e.g., using an ; uninitialized variable and relying on the fact it's automatically ; initialized to an empty string) ; E_CORE_ERROR - fatal errors that occur during PHP's initial startup ; E_CORE_WARNING - warnings (non fatal errors) that occur during PHP's initial startup ; E_COMPILE_ERROR - fatal compile-time errors ; E_COMPILE_WARNING - compile-time warnings (non fatal errors) ; E_USER_ERROR - user-generated error message ; E_USER_WARNING - user-generated warning message ; E_USER_NOTICE - user-generated notice message ; Examples: ; error_reporting = E_ALL & ~E_NOTICE ; show all errors, except for notices ; error_reporting = E_COMPILE_ERROR|E_ERROR|E_CORE_ERROR ; show only errors error_reporting = E_ALL & ~E_NOTICE ; Show all errors except for notices display_errors = On ; Print out errors (as a part of the HTML script) log_errors = Off ; Log errors into a log file (server-specific log, stderr, or error_log (below)) track_errors = Off ; Store the last error/warning message in $php_errormsg (boolean) ;error_prepend_string = "<font color=ff0000>" ; string to output before an error message ;error_append_string = "</font>" ; string to output after an error message ;error_log = filename ; log errors to specified file ;error_log = syslog ; log errors to syslog (Event Log on NT, not valid in Windows 95) warn_plus_overloading = Off ; warn if the + operator is used with strings ;;;;;;;;;;;;;;;;; ; Data Handling ; ;;;;;;;;;;;;;;;;; variables_order = "EGPCS" ; This directive describes the order in which PHP registers ; GET, POST, Cookie, Environment and Built-in variables (G, P, ; C, E & S respectively, often referred to as EGPCS or GPC). ; Registration is done from left to right, newer values override ; older values. register_globals = On ; Whether or not to register the EGPCS variables as global ; variables. You may want to turn this off if you don't want ; to clutter your scripts' global scope with user data. This makes ; most sense when coupled with track_vars - in which case you can ; access all of the GPC variables through the $HTTP_*_VARS[], ; variables. register_argc_argv = On ; This directive tells PHP whether to declare the argv&argc ; variables (that would contain the GET information). If you ; don't use these variables, you should turn it off for ; increased performance track_vars = On ; enable the $HTTP_*_VARS[] arrays, where * is one of ; ENV, POST, GET, COOKIE or SERVER. gpc_order = "GPC" ; This directive is deprecated. Use variables_order instead. ; Magic quotes magic_quotes_gpc = On ; magic quotes for incoming GET/POST/Cookie data magic_quotes_runtime= Off ; magic quotes for runtime-generated data, e.g. data from SQL, from exec(), etc. magic_quotes_sybase = Off ; Use Sybase-style magic quotes (escape ' with '' instead of \') ; automatically add files before or after any PHP document auto_prepend_file = auto_append_file = ; As of 4.0b4, PHP always outputs a character encoding by default in ; the Content-type: header. To disable sending of the charset, simply ; set it to be empty. ; PHP's built-in default is text/html default_mimetype = "text/html" ;default_charset = "iso-8859-1" ;;;;;;;;;;;;;;;;;;;;;;;;; ; Paths and Directories ; ;;;;;;;;;;;;;;;;;;;;;;;;; include_path = ; UNIX: "/path1:/path2" Windows: "\path1;\path2" doc_root = ; the root of the php pages, used only if nonempty user_dir = ; the directory under which php opens the script using /~username, used only if nonempty ;upload_tmp_dir = ; temporary directory for HTTP uploaded files (will use system default if not specified) upload_max_filesize = 2097152 ; 2 Meg default limit on file uploads extension_dir = ./ ; directory in which the loadable extensions (modules) reside ;;;;;;;;;;;;;;;;;;;;;; ; Dynamic Extensions ; ;;;;;;;;;;;;;;;;;;;;;; ; if you wish to have an extension loaded automaticly, use the ; following syntax: extension=modulename.extension ; for example, on windows, ; extension=msql.dll ; or under UNIX, ; extension=msql.so ; Note that it should be the name of the module only, no directory information ; needs to go here. Specify the location of the extension with the extension_dir directive above. ;Windows Extensions ;extension=php_mysql.dll ;extension=php_nsmail.dll ;extension=php_calendar.dll ;extension=php_dbase.dll ;extension=php_filepro.dll ;extension=php_gd.dll ;extension=php_dbm.dll ;extension=php_mssql.dll ;extension=php_zlib.dll ;extension=php_filepro.dll ;extension=php_imap4r2.dll ;extension=php_ldap.dll ;extension=php_crypt.dll ;extension=php_msql2.dll ;extension=php_odbc.dll ;;;;;;;;;;;;;;;;;;; ; Module Settings ; ;;;;;;;;;;;;;;;;;;; [Syslog] define_syslog_variables = Off ; Whether or not to define the various syslog variables, ; e.g. $LOG_PID, $LOG_CRON, etc. Turning it off is a ; good idea performance-wise. In runtime, you can define ; these variables by calling define_syslog_variables() [mail function] CENSORED ;sendmail_path = ;for unix only, may supply arguments as well (default is sendmail -t) [Debugger] debugger.host = localhost debugger.port = 7869 debugger.enabled = False [Logging] ; These configuration directives are used by the example logging mechanism. ; See examples/README.logging for more explanation. ;logging.method = db ;logging.directory = /path/to/log/directory [SQL] sql.safe_mode = Off [ODBC] ;uodbc.default_db = Not yet implemented ;uodbc.default_user = Not yet implemented ;uodbc.default_pw = Not yet implemented uodbc.allow_persistent = On ; allow or prevent persistent links uodbc.check_persistent = On ; check that a connection is still validbefore reuse uodbc.max_persistent = -1 ; maximum number of persistent links. -1 means no limit uodbc.max_links = -1 ; maximum number of links (persistent+non persistent). -1 means no limit uodbc.defaultlrl = 4096 ; Handling of LONG fields. Returns number of bytes to variables, 0 means passthru uodbc.defaultbinmode = 1 ; Handling of binary data. 0 means passthru, 1 return as is, 2 convert to char ; See the documentation on odbc_binmode and odbc_longreadlen for an explanation of uodbc.defaultlrl ; and uodbc.defaultbinmode [MySQL] mysql.allow_persistent = On ; allow or prevent persistent link mysql.max_persistent = -1 ; maximum number of persistent links. -1 means no limit mysql.max_links = -1 ; maximum number of links (persistent+non persistent). -1 means no limit mysql.default_port = ; default port number for mysql_connect(). If unset, ; mysql_connect() will use the $MYSQL_TCP_PORT, or the mysql-tcp ; entry in /etc/services, or the compile-time defined MYSQL_PORT ; (in that order). Win32 will only look at MYSQL_PORT. mysql.default_host = ; default host for mysql_connect() (doesn't apply in safe mode) mysql.default_user = ; default user for mysql_connect() (doesn't apply in safe mode) mysql.default_password = ; default password for mysql_connect() (doesn't apply in safe mode) ; Note that this is generally a *bad* idea to store passwords ; in this file. *Any* user with PHP access can run ; 'echo cfg_get_var("mysql.default_password")' and reveal that ; password! And of course, any users with read access to this ; file will be able to reveal the password as well. [mSQL] msql.allow_persistent = On ; allow or prevent persistent link msql.max_persistent = -1 ; maximum number of persistent links. -1 means no limit msql.max_links = -1 ; maximum number of links (persistent+non persistent). -1 means no limit [PostgresSQL] pgsql.allow_persistent = On ; allow or prevent persistent link pgsql.max_persistent = -1 ; maximum number of persistent links. -1 means no limit pgsql.max_links = -1 ; maximum number of links (persistent+non persistent). -1 means no limit [Sybase] sybase.allow_persistent = On ; allow or prevent persistent link sybase.max_persistent = -1 ; maximum number of persistent links. -1 means no limit sybase.max_links = -1 ; maximum number of links (persistent+non persistent). -1 means no limit ;sybase.interface_file = "/usr/sybase/interfaces" sybase.min_error_severity = 10 ; minimum error severity to display sybase.min_message_severity = 10 ; minimum message severity to display sybase.compatability_mode = Off ; compatability mode with old versions of PHP 3.0. ; If on, this will cause PHP to automatically assign types to results ; according to their Sybase type, instead of treating them all as ; strings. This compatability mode will probably not stay around ; forever, so try applying whatever necessary changes to your code, ; and turn it off. [Sybase-CT] sybct.allow_persistent = On ; allow or prevent persistent link sybct.max_persistent = -1 ; maximum number of persistent links. -1 means no limit sybct.max_links = -1 ; maximum number of links (persistent+non persistent). -1 means no limit sybct.min_server_severity = 10 ; minimum server message severity to display sybct.min_client_severity = 10 ; minimum client message severity to display [bcmath] bcmath.scale = 0 ; number of decimal digits for all bcmath functions [browscap] ;browscap = extra/browscap.ini [Informix] ifx.default_host = ; default host for ifx_connect() (doesn't apply in safe mode) ifx.default_user = ; default user for ifx_connect() (doesn't apply in safe mode) ifx.default_password = ; default password for ifx_connect() (doesn't apply in safe mode) ifx.allow_persistent = On ; allow or prevent persistent link ifx.max_persistent = -1 ; maximum number of persistent links. -1 means no limit ifx.max_links = -1 ; maximum number of links (persistent+non persistent). -1 means no limit ifx.textasvarchar = 0 ; if set on, select statements return the contents of a text blob instead of it's id ifx.byteasvarchar = 0 ; if set on, select statements return the contents of a byte blob instead of it's id ifx.charasvarchar = 0 ; trailing blanks are stripped from fixed-length char columns. May help the life ; of Informix SE users. ifx.blobinfile = 0 ; if set on, the contents of text&byte blobs are dumped to a file instead of ; keeping them in memory ifx.nullformat = 0 ; NULL's are returned as empty strings, unless this is set to 1. In that case, ; NULL's are returned as string 'NULL'. [Session] session.save_handler = files ; handler used to store/retrieve data session.save_path = /tmp ; argument passed to save_handler ; in the case of files, this is the ; path where data files are stored session.use_cookies = 1 ; whether to use cookies session.name = PHPSESSID ; name of the session ; is used as cookie name session.auto_start = 0 ; initialize session on request startup session.cookie_lifetime = 0 ; lifetime in seconds of cookie ; or if 0, until browser is restarted session.cookie_path = / ; the path the cookie is valid for session.cookie_domain = ; the domain the cookie is valid for session.serialize_handler = php ; handler used to serialize data ; php is the standard serializer of PHP session.gc_probability = 1 ; percentual probability that the ; 'garbage collection' process is started ; on every session initialization session.gc_maxlifetime = 1440 ; after this number of seconds, stored ; data will be seen as 'garbage' and ; cleaned up by the gc process session.referer_check = ; check HTTP Referer to invalidate ; externally stored URLs containing ids session.entropy_length = 0 ; how many bytes to read from the file session.entropy_file = ; specified here to create the session id ; session.entropy_length = 16 ; session.entropy_file = /dev/urandom session.cache_limiter = nocache ; set to {nocache,private,public} to ; determine HTTP caching aspects session.cache_expire = 180 ; document expires after n minutes [MSSQL] ;extension=php_mssql.dll mssql.allow_persistent = On ; allow or prevent persistent link mssql.max_persistent = -1 ; maximum number of persistent links. -1 means no limit mssql.max_links = -1 ; maximum number of links (persistent+non persistent). -1 means no limit mssql.min_error_severity = 10 ; minimum error severity to display mssql.min_message_severity = 10 ; minimum message severity to display mssql.compatability_mode = Off ; compatability mode with old versions of PHP 3.0. [Assertion] ;assert.active = On ; assert(expr); active by default ;assert.warning = On ; issue a PHP warning for each failed assertion. ;assert.bail = Off ; don't bail out by default. ;assert.callback = 0 ; user-function to be called if an assertion fails. ;assert.quiet_eval = 0 ; eval the expression with current error_reporting(). set to true if you want error_reporting(0) around the eval(). ; Local Variables: ; tab-width: 4 ; End: