Online PHP editor | output for SFtEL

<?php $a = false; if($false > 0){ echo ">0 does not filter false" } if($false >= 0){ echo ">=0 does not filter false" } if($false < 0){ echo "<0 does not filter false" } if($false <= 0){ echo "<=0 does not filter false" } if($false > 1){ echo ">1 does not filter false" } if($false >= 1){ echo ">=1 does not filter false" } if($false < 1){ echo "<1 does not filter false" } if($false <= 1){ echo "<=1 does not filter false" } if($false > -1){ echo ">-1 does not filter false" } if($false >= -1){ echo ">=-1 does not filter false" } if($false < -1){ echo "<-1 does not filter false" } if($false <= -1){ echo "<=-1 does not filter false" }