DoDebug

This plugin can log the breakpoints into the file.

• To check the log, ssh to server, run tail -f /your_wordpress_path/wp-content/debug.log to watch the output.

API

• To log, use defined( 'debug' ) && debug( 'your content to log' ); in your plugin/theme code.

• To log only in advanced debug level, use defined( 'debug' ) && debug2( 'your content to log' );.

• To log with backtrace depth = 4, use defined( 'debug' ) && debug( 'your content to log', 4 );.

• To append one variable (usually an array), use defined( 'debug' ) && debug( 'your content to log', $var_to_check );.