THE CODE

Programming

Programming is most useful when a small, clear example helps solve a real problem. This section will grow with working PHP and JavaScript examples.

Separate URL paths from query strings, identify category and article segments, and handle missing or unexpected values.

Select related pages from a trusted directory, exclude the page being viewed, and handle small categories without duplicate links.

Move hover behavior out of HTML, avoid child-element flicker, and support keyboard focus alongside pointer interaction.

Select one entry or several unique entries while handling array keys, empty lists and repeat choices.

Send visitors to a new page without output errors, redirect loops or an untrusted destination.

Choose between file() and fgets(), with practical path and blank-line checks.

Match each physical line in a file to a calendar day with a defined time zone.

Use addEventListener() with accessible buttons, event options and cleanup.

See how URL components are encoded and decoded in the browser.

Measure text length as you prepare page metadata.