# The argument to the '-d' flag is as if you added a line to the INI file. Turning on Xdebug only when needed (PHP-CLI)įor PHP on the command line (PHP-CLI), you can take advantage of giving PHP INI settings over the command line, that only apply for that invocation of PHP. For example, you can turn on both “develop” and “profile” modes. You can enable other modes by separating them with a comma. for both profiling and develop mode (enhanced warnings) This is easiest, but keep in mind that profiling output can be quite large and fill up the IFS, so you may only want to turn it on when requested. You can set the xdebug.mode setting to profile all PHP programs and web requests. These will be explained more below or on the Xebug web site. Likewise, additional lines can be added to configure Xdebug.

The INI file can be found at /QOpenSys/etc/php/conf.d/99-xdebug.ini, and disabling/enabling is a matter of inserting/removing a comment marker ( ) before the line and restarting PHP. To enable Xdebug, uncomment the directive that loads Xdebug in the INI file for Xdebug, then restart the web server. Xdebug will be disabled by default, because it impacts performance.

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