php-src/ext/standard/tests/strings/bug20169.phpt

--TEST--
Bug #20169 (implode() clobbers first argument)
--FILE--
<?php
	@set_time_limit(5);
	$delimiter = "|";

	echo "delimiter: $delimiter\n";
	implode($delimiter, array("foo", "bar"));
	echo "delimiter: $delimiter\n";
?>
--EXPECT--
delimiter: |
delimiter: |