- var_dump: documentation ( source)
- ob_start: documentation ( source)
- ob_end_flush: documentation ( source)
- headers_sent: documentation ( source)
- headers_list: documentation ( source)
- header: documentation ( source)
<?php
ob_start();
header("X-WTFIDONTEVEN: true");
if (headers_sent()) {
echo "sent";
}
else {
echo "not sent";
}
var_dump(headers_list());
ob_end_flush();