php_admin_value in .NET framework

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php_admin_value
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The php_admin_value directive allows you to set a value for a configuration parameter This directive cannot appear in directory containers or per-directory htaccess files
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Syntax: php_admin_value name value Context: Server config, virtual host
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php_flag
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The php_flag directive allows you to set a boolean value (On or Off) for a configuratio parameter Syntax: php_flag name On | Off Context: Server config, virtual host, directory, per-directory (htaccess) For example:
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php_flag display_errors On
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The php_value directive allows you to set value for a configuration parameter Syntax: php_value name value Context: Server config, virtual host, directory, per-directory (htaccess) For example:
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php_value error_reporting 15
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PHP Directives directives in phpini
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The phpini file has a simple directive = value structure syntax Lines consisting of leading semicolons or lines with only whitespaces are ignored Section names are enclosed in brackets You can learn about all the directives that go in phpini at wwwphpnet/manual/en/configurationphp The following sections discuss the most useful directives
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auto_append_file
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The auto_prepend_file directive enables you to set a footer document with each PHP-parsed page Syntax: auto_prepend_file filename
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The auto_prepend_file directive enables you to set a header document with each PHP-parsed page Syntax: auto_prepend_file filename
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The following example preloadphp page will be loaded before each PHP page is processed This page is a good place to establish database connections
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auto_prepend_file preloadphp
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default_charset
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The default_charset directive sets the default character set Syntax: default_charset char_set The following example sets the default character set to 8-bit UTF:
default_charset = UTF-8
disable_functions
The disable_functions directive enables you to disable one or more functions for security reasons Syntax: disable_functions function_name [function_name] You can specify a comma-delimited list of PHP functions as shown below:
disable_functions = fopen, fwrite, popen
In the above, the functions responsible for opening, writing file or pipes are disabled
Note
This directive is not affected by the safe_mode directive
display_errors
The display_errors directive enables or disables printing of error message on screen This is recommended only for use on development systems and not for use on production servers For production systems, you should use log_errors along with error_log directives to log error messages to files or to a syslog server Syntax: display_errors On | Off
enable_dl
The enable_dl directive enables or disables the capability to dynamically load a PHP extension Syntax: enable_dl On | Off Default setting: enable_dl On
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error_append_string
The error_append_string directive sets the string that is appended to the error message See error_prepend_string directive above Syntax: error_append_string string
error_log
The error_log directive sets the PHP error log path You can specify a fully qualified pathname of the log file, or you can specify the keyword syslog on Unix systems to log using the syslog facility On Windows systems, setting this directive to syslog writes log entries in the Windows Event log Syntax: error_log fqpn
error_prepend_string
The error_prepend_string directive sets the string that is prepended to an error message This directive is used with the error_append_string Syntax: error_prepend_string string If you do not log errors, then error messages are shown on screen For example, by using these two directives, you can print error messages in red font color:
error_prepend_string = <font color=red> error_append_string = </font>
error_reporting
The error_reporting directive enables you to specify a bit field to specify an error reporting level The bit field can be constructed using the predefined constants shown in Table 15-2 Syntax: error_reporting [bit field] [predefined_ constant]
Table 15-2 Constants for error_reporting Directive
Constant E_ALL E_ERROR E_WARNING E_PARSE Meaning Displays all errors, warnings, and notices Displays only fatal run-time errors Displays run-time warnings Displays parse errors
15 PHP and Apache
Constant E_NOTICE E_CORE_ERROR E_CORE_WARNING E_COMPILE_ERROR E_COMPILE_WARNING E_USER_ERROR E_USER_WARNING E_USER_NOTICE
Meaning Displays notices of likely problems in code Displays fatal errors that occur during PHP s initial startup Displays warnings that occur during PHP s initial startup Displays fatal compile-time errors Displays compile-time warnings (nonfatal errors) User-generated error message User-generated warning message User-generated notice message
You can use bit field operators such as ~ (inverts), & (bitwise meaning AND ), and | (bitwise meaning OR ) to create a custom error-reporting level For example:
Error_reporting = E_ALL & ~E_WARNING & ~E_NOTICE
This tells the PHP engine to display all errors except warnings and notices Displaying error messages on a production server is not recommended You should display errors only on your development system or during the development phase of your production server On production servers, use log_errors and error_log directives to write logs to files or to a syslog facility