Online PHP editor | perf for mQTpO

<?php /** * SimpleXMLElement Introspection */ error_reporting(~0); $xml = '<document> <child> give <grandchild a1="v1" a2="v2"> me </grandchild> <grandchild> more </grandchild> sugar. </child> <child> </child> <single/> </document> '; $simple = new SimpleXMLElement($xml); /** * @param SimpleXMLElement $element * @return bool */ function simplexml_is_documentelement(SimpleXMLElement $element) { list($elementNode) = $element->xpath('.'); list($documentElement) = $element->xpath('/*'); return $elementNode == $element and $documentElement == $element; } $documentElement = $simple; $attributeList = $simple->child->grandchild->attributes(); $attributeListEmpty = $simple->child->attributes(); $attribute = $simple->child->grandchild['a1']; $suite = array( 'is_documentelement' => array('simplexml_is_documentelement', array( array(true, $documentElement), array(false, $documentElement->child), array(false, $documentElement->single), array(true, reset(($simple->xpath('/*')))), array(true, reset(($simple->simple->xpath('/*'))), array(false, $documentElement->child[0]), array(false, $documentElement->child->grandchild), array(false, $attribute), array(false, $attributeList), array(false, $attributeListEmpty), )), ); echo "Running tests with LIBXML ", LIBXML_DOTTED_VERSION, ":\n"; run_test_suite($suite); function run_test_suite(array $testsuite) { foreach ($testsuite as $caselabel => $testcasedef) { list($callback, $testcase) = $testcasedef; $stats[] = run_testcase($testcase, $callback, $caselabel); } echo "\n"; $stat['tests'] = 0; $stat['failures'] = 0; foreach ($stats as $singled) { $stat['tests'] += $singled['tests']; $stat['failures'] += $singled['failures']; echo $singled['messages']; } printf("Done %d tests with %d failures.", $stat['tests'], $stat['failures']); } function run_testcase(array $testcase, $callback, $label = null) { if ($label === null) $label = $callback; $stats['tests'] = 0; $stats['failures'] = 0; $messages = ''; foreach ($testcase as $i => $test) { list($expected, $subject, $testlabel) = $test + array(2 => "#$i"); $labeltest = $label . ' ' . $testlabel; ob_start(); $result = run_test($expected, $subject, $callback, $labeltest); $buffer = ob_get_clean(); echo $result ? '.' : 'F'; if ($buffer) { $messages .= sprintf("### %s ###\n", $labeltest); $messages .= $buffer; } $stats['tests']++; if (!$result) $stats['failures']++; } return $stats + array('messages' => $messages); } function run_test($expected, $subject, $callback, $label) { $actual = call_user_func($callback, $subject); if ($expected instanceof SimpleXMLElement and $actual instanceof SimpleXMLElement) { $result = $actual == $expected; } else { $result = $actual === $expected; } if (!$result) { $extra = ''; if ($subject instanceof SimpleXMLElement) { $extra = sprintf(' with %s', rtrim($subject->asXML())); } printf("FAILED to test %s%s.\n", $label, $extra); echo 'expected: ', var_dump($expected); echo 'actual:', var_dump($actual); } return $result; }

Version	System time (s)	User time (s)	Memory (MiB)
5.4.11	0.013	0.060	16.33
5.4.10	0.010	0.040	16.67
5.4.9	0.003	0.073	16.29
5.4.8	0.010	0.067	16.37
5.4.7	0.013	0.057	16.41
5.4.6	0.000	0.077	16.65
5.4.5	0.010	0.073	16.37
5.4.4	0.003	0.070	16.29
5.4.3	0.007	0.053	16.36
5.4.2	0.003	0.077	16.36
5.4.1	0.013	0.067	16.27
5.4.0	0.010	0.070	15.95
5.3.21	0.003	0.050	14.62
5.3.20	0.010	0.073	14.62
5.3.19	0.010	0.073	14.47
5.3.18	0.007	0.077	14.61
5.3.17	0.010	0.073	14.61
5.3.16	0.007	0.073	14.72
5.3.15	0.007	0.070	14.65
5.3.14	0.013	0.053	14.63
5.3.13	0.000	0.050	14.57
5.3.12	0.013	0.067	14.48
5.3.11	0.010	0.037	14.58
5.3.10	0.020	0.057	14.10
5.3.9	0.003	0.077	14.04
5.3.8	0.003	0.040	14.05
5.3.7	0.007	0.077	14.08
5.3.6	0.010	0.043	14.05
5.3.5	0.003	0.043	14.11
5.3.4	0.013	0.070	14.02
5.3.3	0.003	0.037	13.89
5.3.2	0.000	0.043	13.75
5.3.1	0.017	0.060	13.82
5.3.0	0.000	0.077	13.68