3v4l.org

run code in 300+ PHP versions simultaneously
<?php $cnpjCpfEmitente = "02.089.969/0014-20"; $posTraco = strpos($cnpjCpfEmitente, "-"); echo substr($cnpjCpfEmitente, $posTraco-2, 2);

preferences:
33.84 ms | 402 KiB | 5 Q