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Runtime Configuration

The behaviour of these functions is affected by settings in php.ini.

Misc. Configuration Options
Name Default Changeable Changelog
ignore_user_abort "0" PHP_INI_ALL  
highlight.string "#DD0000" PHP_INI_ALL  
highlight.comment "#FF8000" PHP_INI_ALL  
highlight.keyword "#007700" PHP_INI_ALL "#FFFFFF" PHP_INI_ALL Removed in PHP 5.4.0.
highlight.default "#0000BB" PHP_INI_ALL  
highlight.html "#000000" PHP_INI_ALL  
For further details and definitions of the PHP_INI_* modes, see the Where a configuration setting may be set.

Here's a short explanation of the configuration directives.

ignore_user_abort boolean

FALSE by default. If changed to TRUE scripts will not be terminated after a client has aborted their connection.

See also ignore_user_abort(). string
highlight.comment string
highlight.default string
highlight.html string
highlight.keyword string
highlight.string string

Colors for Syntax Highlighting mode. Anything that's acceptable in <font color="??????"> would work.

browscap string

Name (e.g.: browscap.ini) and location of browser capabilities file. See also get_browser().

PHP Manual