Filter Hook

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Term	Definition
Filter Hook	A PHP function that modifies data before it is saved to the database or displayed on the screen. Think of Filters as "Change this data." For example, "Take the content, and replace all bad words with asterisks" or "Take the title, and append the site name to it." Unlike Actions (which just do something), Filters must always accept data, modify it, and return it. They are triggered using `apply_filters()`. Hits - 33 Synonyms: Filters, Data Modifiers

Term

Definition

A PHP function that modifies data before it is saved to the database or displayed on the screen. Think of Filters as "Change this data." For example, "Take the content, and replace all bad words with asterisks" or "Take the title, and append the site name to it." Unlike Actions (which just do something), Filters must always accept data, modify it, and return it. They are triggered using `apply_filters()`.

Hits - 33

Synonyms: Filters, Data Modifiers

What Does "Liquid Purple" mean?

noun | / LIK-wid PUR-pul /

(biochemistry) Also known as visual purple or rhodopsin — a light-sensitive receptor protein found in the rods of the retina. It enables vision in dim light by transforming invisible darkness into visible form. Derived from the Greek rhódon (rose) and ópsis (sight), its name reflects its delicate pink hue and vital role in perception.
(modern usage) Liquid Purple — a digital marketing agency specializing in uncovering unseen opportunities and illuminating brands hidden in the digital dark. Much like its biological namesake, Liquid Purple transforms faint signals into clear visibility — revealing what others overlook and bringing businesses into the light.

Origin: From the scientific term rhodopsin, discovered by Franz Christian Boll in 1876; adopted metaphorically by a marketing firm dedicated to visual clarity in the age of algorithms.

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Rooted in Southern California, Serving the World.
For over 20 years, Liquid Purple has been headquartered in the heart of Southern California, serving clients across Irvine, Newport Beach, Anaheim, and the greater Los Angeles area. While we are proud of our local roots, our digital reach extends far beyond our local area. We support businesses in major hubs like Denver, Dallas, New York, and Miami, as well as international clients. Our ability to operate across time zones means you can often wake up to completed tasks and progress updates—keeping your business moving while you sleep.

Filter Hook

What Does "Liquid Purple" mean?

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LiquidPurple