phpinfo() with passwords redacted

phpinfo_passwords_redacted.php

<?php

// outputs phpinfo() with passwords redacted
ob_start();
phpinfo();
$phpinfoString = ob_get_clean();
$phpinfoDom = new DOMDocument();
$phpinfoDom->loadHTML($phpinfoString);
$x = new DOMXPath($phpinfoDom);
$passwordCells = $x->query('//td[@class="e" and (contains(., "PASSWORD") or contains(., "password"))]/../td[@class="v"]');
foreach ($passwordCells as $cell) {
	$cell->nodeValue = '[redacted]';
}
echo $phpinfoDom->saveHTML();
ob_end_clean();