Accessibility

Accessibility is the process to make the code accessible to everyone.

PHP code being text, its accessibility relies on the IDE. The main accessible feature is the usage of tabulations, instead of multiple spaces.

Accessibility is also called a11y, aka a, 11 letters and y. This is shorter to write.

See also Why we should default to Tabs instead of Spaces for an ‘accessible first’ environment, Tabs vs. Spaces: It’s an Accessibility Issue

Related : Internationalization Functions