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--TEST--
array_multisort() is stable
--FILE--
<?php
// Something of a dummy example where 0 and '0' are used as equal elements.
$ary1 = array_fill(0, 100, 0);
$origAry2 = $ary2 = array_merge(...array_fill(0, 50, [0, '0']));
array_multisort($ary1, $ary2);
var_dump($ary2 === $origAry2);
?>
--EXPECT--
bool(true)
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