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--TEST-- imap_utf8() tests --SKIPIF-- <?php if (!extension_loaded("imap")) print "skip"; ?> --FILE-- <?php var_dump(imap_utf8("")); var_dump(imap_utf8(1)); var_dump(imap_utf8("test")); echo "Done\n"; ?> --EXPECT-- string(0) "" string(1) "1" string(4) "test" Done