How can debugging be done step by step in WordPress plugins that contain PHP code?

To debug WordPress plugins that contain PHP code step by step, you can use tools like WP_DEBUG and error_log to log and track errors. By enabling WP_DEBUG in your wp-config.php file, you can see errors directly on your site or in the debug.log file. Additionally, using functions like error_log() to output specific variables or messages can help pinpoint issues in your code. 

// Enable debugging in wp-config.php
define( 'WP_DEBUG', true );
define( 'WP_DEBUG_LOG', true );
define( 'WP_DEBUG_DISPLAY', false );

// Use error_log() to log specific variables or messages
error_log( 'Debug message here' );

Keywords

WordPress PHP debugging step by step breakpoints Xdebug

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