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--TEST--
readline_callback_handler_install(): Basic test
--SKIPIF--
<?php if (!extension_loaded("readline") || !function_exists('readline_callback_handler_install')) die("skip"); ?>
--FILE--
<?php
function foo() {
readline_callback_handler_remove();
}
var_dump(readline_callback_handler_install('testing: ', 'foo'));
var_dump(readline_callback_handler_install('testing: ', 'foobar!'));
var_dump(readline_callback_handler_install('testing: '));
?>
--EXPECTF--
testing: bool(true)
Warning: readline_callback_handler_install(): foobar! is not callable in %s on line %d
bool(false)
Warning: readline_callback_handler_install() expects exactly 2 parameters, 1 given in %s on line %d
NULL
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