1 <?php
  2 function ifthenelse( $a, $b )
  3 {
  4     if ($a) {
  5         echo "A HIT\n";
  6     }
  7     if ($b) {
  8         echo "B HIT\n";
  9     }
 10 }
 11 ?>

…
xdebug_start_code_coverage(
    XDEBUG_CC_UNUSED | XDEBUG_CC_DEAD_CODE | XDEBUG_CC_BRANCH_CHECK
);

ifthenelse( true, false ); 
ifthenelse( false, true ); 
…