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--TEST--
hash_copy() errors
--SKIPIF--
<?php extension_loaded('hash') or die('skip'); ?>
--FILE--
<?php
$r = hash_init("md5");
var_dump(hash_copy());
var_dump(hash_copy($r));
var_dump(hash_copy($r, $r));
echo "Done\n";
?>
--EXPECTF--
Warning: hash_copy() expects exactly 1 parameter, 0 given in %s on line %d
NULL
resource(%d) of type (Hash Context)
Warning: hash_copy() expects exactly 1 parameter, 2 given in %s on line %d
NULL
Done
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