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POPhp - Create and display multidimensional array
 

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    <p>I have this XML:</p> <pre><code>&lt;eSummaryResult&gt; &lt;DocSum&gt; &lt;Id&gt;11482001&lt;/Id&gt; &lt;Item Name="PubDate" Type="Date"&gt;2001 Jun&lt;/Item&gt; &lt;Item Name="EPubDate" Type="Date" /&gt; &lt;Item Name="Source" Type="String"&gt;Adverse Drug React Toxicol Rev&lt;/Item&gt; &lt;Item Name="AuthorList" Type="List"&gt; &lt;Item Name="Author" Type="String"&gt;Mantle D&lt;/Item&gt; &lt;Item Name="Author" Type="String"&gt;Gok MA&lt;/Item&gt; &lt;Item Name="Author" Type="String"&gt;Lennard TW&lt;/Item&gt; &lt;/Item&gt; &lt;Item Name="LastAuthor" Type="String"&gt;Lennard TW&lt;/Item&gt; &lt;Item Name="Title" Type="String"&gt;Adverse and beneficial effects of plant extracts on skin and skin disorders.&lt;/Item&gt; &lt;Item Name="Volume" Type="String"&gt;20&lt;/Item&gt; &lt;Item Name="Issue" Type="String"&gt;2&lt;/Item&gt; &lt;Item Name="Pages" Type="String"&gt;89-103&lt;/Item&gt; &lt;Item Name="LangList" Type="List"&gt; &lt;Item Name="Lang" Type="String"&gt;English&lt;/Item&gt; &lt;/Item&gt; &lt;Item Name="NlmUniqueID" Type="String"&gt;9109474&lt;/Item&gt; &lt;Item Name="ISSN" Type="String"&gt;0964-198X&lt;/Item&gt; &lt;Item Name="ESSN" Type="String" /&gt; &lt;Item Name="PubTypeList" Type="List"&gt; &lt;Item Name="PubType" Type="String"&gt;Journal Article&lt;/Item&gt; &lt;Item Name="PubType" Type="String"&gt;Review&lt;/Item&gt; &lt;/Item&gt; &lt;Item Name="RecordStatus" Type="String"&gt;PubMed - indexed for MEDLINE&lt;/Item&gt; &lt;Item Name="PubStatus" Type="String"&gt;ppublish&lt;/Item&gt; &lt;Item Name="ArticleIds" Type="List"&gt; &lt;Item Name="pubmed" Type="String"&gt;11482001&lt;/Item&gt; &lt;Item Name="eid" Type="String"&gt;11482001&lt;/Item&gt; &lt;Item Name="rid" Type="String"&gt;11482001&lt;/Item&gt; &lt;/Item&gt; &lt;Item Name="History" Type="List"&gt; &lt;Item Name="pubmed" Type="Date"&gt;2001/08/03 10:00&lt;/Item&gt; &lt;Item Name="medline" Type="Date"&gt;2002/01/23 10:01&lt;/Item&gt; &lt;Item Name="entrez" Type="Date"&gt;2001/08/03 10:00&lt;/Item&gt; &lt;/Item&gt; &lt;Item Name="References" Type="List" /&gt; &lt;Item Name="HasAbstract" Type="Integer"&gt;1&lt;/Item&gt; &lt;Item Name="PmcRefCount" Type="Integer"&gt;3&lt;/Item&gt; &lt;Item Name="FullJournalName" Type="String"&gt;Adverse drug reactions and toxicological reviews&lt;/Item&gt; &lt;Item Name="ELocationID" Type="String" /&gt; &lt;Item Name="SO" Type="String"&gt;2001 Jun;20(2):89-103&lt;/Item&gt; &lt;/DocSum&gt; &lt;/eSummaryResult&gt; </code></pre> <p>And i would like to create an array like this:</p> <pre><code>$results2 = array( '0' =&gt; array( 'id' =&gt; 'xxxxxxxx', 'authors' =&gt; array( '0' =&gt; 'xxxxxxxxxx', '1' =&gt; 'xxxxxxxxxx', ) ), '1' =&gt; array( 'id' =&gt; 'xxxxxxxx', 'authors' =&gt; array( '0' =&gt; 'xxxxxxxxxx', '1' =&gt; 'xxxxxxxxxx', ) ), ); </code></pre> <p>I have do this function to get data from XML to PHP in which i am trying to put the data with this structure and then display. I have not much experience with PHP i am having problems with syntax. This is the function:</p> <pre><code>function esummary_query($db, $id) { $context = stream_context_create(array( 'http'=&gt;array( 'user_agent' =&gt; 'Mozilla/5.0 (Windows NT 5.1) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.57 Safari/536.11' ) )); $xml = file_get_contents('http://eutils.ncbi.nlm.nih.gov/entrez/eutils/esummary.fcgi?db=' . $db . '&amp;id=' . $id, FALSE, $context); $xml_file = simplexml_load_string($xml); $results2 = array(); foreach ( $xml_file-&gt;DocSum as $items ) { $results2[]['id'] = $items-&gt;Id; $authors = $xml_file-&gt;xpath("//Item[@Name='Author']"); foreach ($authors as $author) { $results2[]['authors'][] = $author; } } return $results2; } echo'&lt;h3&gt;id:&lt;/h3&gt;' . $results2[0]['id'] . "&lt;br&gt; author:" . $results2[0]['authors']; </code></pre> <p>But when i display it, the id is shown but the author's names don't. print_r display:</p> <pre><code>Array ( [0] =&gt; Array ( [id] =&gt; SimpleXMLElement Object ( [0] =&gt; 11850928 ) ) [1] =&gt; Array ( [authors] =&gt; Array ( [0] =&gt; SimpleXMLElement Object ( [@attributes] =&gt; Array ( [Name] =&gt; Author [Type] =&gt; String ) [0] =&gt; LoPresti PJ ) ) ) [2] =&gt; Array ( [authors] =&gt; Array ( [0] =&gt; SimpleXMLElement Object ( [@attributes] =&gt; Array ( [Name] =&gt; Author [Type] =&gt; String ) [0] =&gt; Hambrick GW Jr ) ) ) ) </code></pre> <p>Thanks everybody!</p>
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    1. COEvery time you do `$results2[]` you add a new element to `$results2`...
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    2. COi try puting $results2[$i]['authors'][] = $author; but it not seem to work.
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