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run code in 300+ PHP versions simultaneously
<?php $me = __FILE__; $xml = <<<ENDOFXML <!DOCTYPE root [ <!ENTITY foo SYSTEM "php://filter/convert.base64-encode/resource=$me"> ]> <foo>&foo;</foo> ENDOFXML; echo "libxml version: " . LIBXML_DOTTED_VERSION . "\n\n"; $s = simplexml_load_string($xml); var_dump($s); echo "\n"; var_dump(base64_decode($s));
Output for git.master, git.master_jit, rfc.property-hooks
libxml version: 2.9.4 object(SimpleXMLElement)#1 (1) { ["foo"]=> object(SimpleXMLElement)#2 (1) { ["foo"]=> object(SimpleXMLElement)#3 (0) { } } } string(0) ""

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