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--TEST--
Bug #40191 (use of array_unique() with objects triggers segfault)
--SKIPIF--
<?php if (!extension_loaded('spl')) die("skip SPL is not available"); ?>
--FILE--
<?php
$arrObj = new ArrayObject();
$arrObj->append('foo');
$arrObj->append('bar');
$arrObj->append('foo');
$arr = array_unique($arrObj);
var_dump($arr);
echo "Done\n";
?>
--EXPECTF--
Warning: array_unique() expects parameter 1 to be array, object given in %s on line %d
NULL
Done
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