Readline Functions
PHP Manual

readline_completion_function

Registers a completion function

Description

bool readline_completion_function ( callable $function )

This function registers a completion function. This is the same kind of functionality you'd get if you hit your tab key while using Bash.

Parameters

function

You must supply the name of an existing function which accepts a partial command line and returns an array of possible matches.

Return Values

Returns TRUE on success or FALSE on failure.