Programming
List Files in a Directory With PHP
Inventory a folder with PHP: match a pattern with glob(), read every entry with scandir(), walk sub-folders with RecursiveDirectoryIterator, then sort by size or…
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Tag: PHP
Programming
Create a WordPress Settings Page With the Settings API
Build an admin settings screen the way WordPress intends: add_options_page for the menu, register_setting with a sanitize callback, and a form that options.php saves…
Programming
Submit a Form With jQuery AJAX POST
Send a form's fields in the background and show the answer without reloading the page. preventDefault() stops the normal submission, serialize() packs every field…
Programming
Modify the Main Query With pre_get_posts
WordPress builds a query for every page before it runs, and pre_get_posts hands you that query while it is still being built. Change how…
Programming
Log and Display PHP Errors
PHP decides two things separately: whether to print a problem to the browser, and whether to write it to a file. Set display_errors and…
Programming
Schedule Recurring Tasks With WP-Cron
Schedule recurring tasks with WP-Cron, WordPress's built-in scheduler. This tutorial hooks a task to a custom action, adds a five-minute interval through cron_schedules, schedules…