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--TEST--
readline_callback_handler_remove(): Basic test
--SKIPIF--
<?php if (!extension_loaded("readline") || !function_exists('readline_callback_handler_remove')) die("skip");
if (READLINE_LIB != "libedit") die("skip libedit only");
?>
--FILE--
<?php
var_dump(readline_callback_handler_remove());
var_dump(readline_callback_handler_install('testing: ', 'foo'));
function foo() { }
var_dump(readline_callback_handler_install('testing: ', 'foo'));
var_dump(readline_callback_handler_remove());
?>
--EXPECTF--
bool(false)
bool(true)
bool(true)
bool(true)
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