WordPress Actions vs Filters: How Hooks Actually Work

WordPress Actions vs Filters: How Hooks Actually Work

Table of Contents The one-line difference How actions work How filters work What they share Custom hooks in your own code Common mistakes Conclusion If you have copied add_action or add_filter from a snippet and hoped it would work, you already use hooks. WordPress...
wp_insert_post() in WordPress: Parameters and a Safe Example

wp_insert_post() in WordPress: Parameters and a Safe Example

Table of Contents What wp_insert_post() does Key $postarr fields Safe draft-first example Insert versus update Common mistakes Testing checklist Conclusion What wp_insert_post() does wp_insert_post() is the WordPress core function that inserts a new post into the...
pmpro_memberships_users Table: Practical Column and Query Guide

pmpro_memberships_users Table: Practical Column and Query Guide

Table of Contents What the table stores Important columns Why one user can have several rows Safe $wpdb query for active rows Read-only SQL for investigation Common query mistakes Reporting checklist Conclusion What the table stores Paid Memberships Pro uses the...
How to Use pmpro_changeMembershipLevel() Safely

How to Use pmpro_changeMembershipLevel() Safely

Table of Contents What the function does Current signature and parameters Return values Safe helper example Level groups and existing access Hooks fired around the change Common mistakes Conclusion What the function does A membership-level function changes access...
WordPress login_redirect Filter: Parameters and a Role-Based Example

WordPress login_redirect Filter: Parameters and a Role-Based Example

Table of Contents What the login_redirect filter does Parameters Safe role-based redirect example Why capabilities are better than role names Preserve requested destinations when appropriate Common mistakes Testing checklist Conclusion What the login_redirect filter...