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# readline_completion_function

(PHP 4 >= 4.0.0)

readline_completion_function -- Registers a completion function

## Description

``bool readline_completion_function` (string line)`

This function registers a completion function. You must supply the name of an existing function which accepts a partial command line and returns an array of possible matches. This is the same kind of functionality you'd get if you hit your tab key while using Bash.

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