3v4l.org

run code in 300+ PHP versions simultaneously

sponsor
bughunt
search
recent
about

@ 2014-10-15T10:14:52Z

<?php
$header = array('test');
if (is_array($header[0]) && key_exists('class', $header[0])) {
  echo 'set';
}
else {
  echo 'not set';
}

Output
Performance
VLD
References
Branches

key_exists: documentation ( source)

preferences:dark modelive preview

33.19 ms | 402 KiB | 5 Q