1<?php 2function skipif(bool $want_expat) { 3 ob_start(); 4 echo phpinfo(INFO_MODULES); 5 $output = ob_get_clean(); 6 if ($want_expat !== str_contains($output, 'EXPAT')) { 7 die('skip test is for ' . ($want_expat ? 'Expat' : 'libxml')); 8 } 9} 10