--TEST--
readline_write_history(): Basic test
--SKIPIF--
<?php if (!extension_loaded("readline")) die("skip"); ?>
--FILE--
<?php

$name = tempnam('/tmp', 'readline.tmp');

readline_add_history('foo');
readline_add_history('');
readline_add_history(1);
readline_add_history(NULL);
readline_write_history($name);

var_dump(file_get_contents($name));

unlink($name);

?>
--EXPECT--
string(8) "foo

1

"