Online PHP editor | perf for VLJ0a

$code = ' <pre class="prettyprint"><?xml version="1.0" encoding="ISO-8859-1" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title> SimpleXML Example</title> </head> <body> <h1> Please go <a href="http://www.ucertify.com">http://www.ucertify.com</a> <br/> </h1> </body> </html> </pre> Which of the following statements will display the HREF attribute on the anchor tag if the SimpleXML object is $sxml? | In the script given in the question, HREF is the attribute of the anchor (<a>) tag. Besides this, anchor tag is inside the <h1> tag and <body> tag. Hence, you will access the HREF tag in the following way: <pre class="prettyprint">$sxml->body->h1->a[\'href\']</pre> Fact What is SimpleXML? SimpleXML is a PHP extension that allows users to easily manipulate/use XML data. Its functions let a user convert XML to an object, which can be processed with property selectors and array iterators. Consider the following XML file, which describes a small collection of books in XML format. It has a root node of store having a direct child, i.e., category, which classifies the books as fiction; category has two children() labelled book; "twilight" by Stephinie Mayer and "The Bikers" by Alex R. Stuart. <pre class="prettyprint"><?xml version="1.0"?> <store> <category id="fiction"> <book> <title>twilight</title> <author>Stephinie Mayer</author> </book> <book> <title>The Bikers</title> <author>Alex R. Stuart</author> </book> </category> </store> </pre> To extract the book title and author, a user will run the following PHP script: <pre class="prettyprint"><?php $store = simplexml_load_file(\'store.xml\'); foreach ($store->category as $category) { printf("Category %s\n", $category[\'id\']); foreach ($category->book as $book) { printf("<br>Title: %s\n", $book->title); printf("<br>Author: %s\n", $book->author); } } ?></pre> '; $matches = null; $content = preg_match('#<pre class="prettyprint">(.*?)</pre>#i', $code, $matches); $matches = $matches[1]; var_dump(preg_replace("#$code#", htmlentities($content), $code));

Version	System time (s)	User time (s)	Memory (MiB)
7.3.5	0.008	0.011	14.43
7.3.4	0.013	0.007	14.43
7.3.3	0.009	0.014	14.46
7.3.2	0.016	0.005	16.54
7.3.1	0.005	0.010	16.41
7.3.0	0.013	0.008	16.30
7.2.18	0.009	0.016	14.89
7.2.17	0.013	0.013	14.84
7.2.16	0.015	0.012	14.80
7.2.15	0.014	0.003	16.77
7.2.14	0.008	0.008	16.85
7.2.13	0.017	0.000	16.68
7.2.12	0.023	0.006	16.68
7.2.11	0.016	0.016	16.51
7.2.10	0.016	0.011	16.56
7.2.9	0.018	0.007	16.59
7.2.8	0.016	0.012	16.43
7.2.7	0.019	0.003	16.66
7.2.6	0.012	0.012	16.80
7.2.5	0.000	0.011	16.78
7.2.4	0.004	0.009	16.38
7.2.3	0.015	0.000	16.46
7.2.2	0.007	0.010	16.58
7.2.1	0.015	0.012	16.75
7.2.0	0.016	0.003	16.57
7.1.28	0.010	0.005	15.65
7.1.27	0.013	0.005	15.27
7.1.26	0.005	0.010	15.27
7.1.25	0.010	0.013	15.35