<?php
$content = <<<EOD
<span style="cursor:pointer" class="sw1" onclick="document.location='/logout'" onmouseover="hint('<center>До конца действия: 237 д. 0 ч.</center>', this, 75,125)"></span>
EOD;
if (preg_match('#<center>(?P<result>.*?)</center>#', $content, $matches)) { echo $matches['result'];
}
PD9waHAKJGNvbnRlbnQgPSA8PDxFT0QKPHNwYW4gc3R5bGU9ImN1cnNvcjpwb2ludGVyIiBjbGFzcz0ic3cxIiBvbmNsaWNrPSJkb2N1bWVudC5sb2NhdGlvbj0nL2xvZ291dCciIG9ubW91c2VvdmVyPSJoaW50KCc8Y2VudGVyPtCU0L4g0LrQvtC90YbQsCDQtNC10LnRgdGC0LLQuNGPOiAyMzcg0LQuIDAg0YcuPC9jZW50ZXI+JywgdGhpcywgNzUsMTI1KSI+PC9zcGFuPgpFT0Q7CgppZiAocHJlZ19tYXRjaCgnIzxjZW50ZXI+KD9QPHJlc3VsdD4uKj8pPC9jZW50ZXI+IycsICRjb250ZW50LCAkbWF0Y2hlcykpIHsKICBlY2hvICRtYXRjaGVzWydyZXN1bHQnXTsKfQ==