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POPHP, MySQL and XML = garbled HTML output
 

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  1. POPHP, MySQL and XML = garbled HTML output
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    <p>I have a field in MySQL of type text, using the following collation: <code>utf8_general_ci</code>.</p> <p>This XML field is populated using a variable built using DOMDocument:</p> <pre><code>function ed_audit_node($dom, $field, $new, $old){ //create audit_detail node $ad = $dom-&gt;createElement('audit_detail'); $fn = $dom-&gt;createElement('fieldname'); $fn-&gt;appendChild($dom-&gt;createTextNode($field)); $ad-&gt;appendChild($fn); $ov = $dom-&gt;createElement('old_value'); $ov-&gt;appendChild($dom-&gt;createTextNode($old)); $ad-&gt;appendChild($ov); $nv = $dom-&gt;createElement('new_value'); $nv-&gt;appendChild($dom-&gt;createTextNode($new)); $ad-&gt;appendChild($nv); //append to document return $ad; } </code></pre> <p>Here's how I save to the db ( $xml comes from $dom->saveXML() ):</p> <pre><code>function ed_audit_insert($ed, $xml){ global $visitor; $sql = &lt;&lt;&lt;EOF INSERT INTO ed.audit (employee_id, audit_date, audit_action, audit_data, user_id) VALUES ( {$ed[emp][employee_id]}, now(), '{$ed[audit_action]}', '{$xml}', {$visitor[user_id]} ); EOF; $req = mysql_query($sql,$ed['db']) or die(db_query_error($sql,mysql_error(),__FUNCTION__)); //snip } </code></pre> <p>See an older, parallel, slightly related thread on how I’m creating this XML: <a href="https://stackoverflow.com/questions/4662008/another-php-xml-parsing-error-input-is-not-proper-utf-8-indicate-encoding">Another PHP XML parsing error: &quot;Input is not proper UTF-8, indicate encoding!&quot;</a></p> <p><strong>What works</strong>: - querying the database, selecting the field and outputting it using jQuery (.ajax()) and populating a textarea. Firebug and the textarea match what's in the database (confirmed with Toad).</p> <p><strong>What doesn't work</strong>: - outputting the text from the database into an HTML page. This HTML page has the content-type ISO-8859-1, which I cannot change.</p> <p>Here’s the code that outputs that to the screen:</p> <pre><code>$xmlData = simplexml_load_string($d['audit_data']); foreach ($xmlData-&gt;audit_detail as $a){ echo "&lt;p&gt; straight from db = ".$a-&gt;new_value."&lt;/p&gt;"; echo "&lt;p&gt; utf8_decode() = ".utf8_decode($a-&gt;new_value)."&lt;/p&gt;"; } </code></pre> <p>I’ve also used a charset changer extension for Firefox: tried ISO-8859-1, UTF-8 and 1252 without success.</p> <p>If it was UTF-8, shouldn’t I be seeing diamonds with question marks inside (since it's content-type = ISO-8859-1)? If it’s not UTF-8, what is it?</p> <p><strong>Edit #1</strong></p> <p>Here's snapshot of other tests that I have made:</p> <pre><code>$xmlData = simplexml_load_string($d['audit_data']); foreach ($xmlData-&gt;audit_detail as $a){ echo "&lt;p&gt;encoding is, straight from db, using mb_detect_encoding: ".mb_detect_encoding($a-&gt;new_value)."&lt;/p&gt;"; echo "&lt;p&gt;encoding is, with utf8_decode, using mb_detect_encoding: ".mb_detect_encoding(utf8_decode($a-&gt;new_value))."&lt;/p&gt;"; echo "&lt;hr/&gt;"; echo "&lt;p&gt; straight from db = &lt;pre&gt;".$a-&gt;new_value."&lt;/pre&gt;&lt;/p&gt;"; echo "&lt;p&gt; utf8_decode() = &lt;pre&gt;".utf8_decode($a-&gt;new_value)."&lt;/pre&gt;&lt;/p&gt;"; echo "&lt;hr/&gt;"; $iso88591_2 = iconv('UTF-8', 'ISO-8859-1', $a-&gt;new_value); $iso88591_3 = mb_convert_encoding($a-&gt;new_value, 'ISO-8859-1', 'UTF-8'); echo "&lt;p&gt; iconv() = ".$iso88591_2."&lt;/p&gt;"; echo "&lt;p&gt; mb_convert_encoding() = ".$iso88591_3."&lt;/p&gt;"; } </code></pre> <p><strong>Edit #2</strong></p> <p>I added the FF proprietary tag, xmp.</p> <p>Code:</p> <pre><code>$xmlData = simplexml_load_string($d['audit_data']); foreach ($xmlData-&gt;audit_detail as $a){ echo "&lt;p&gt;encoding is, straight from db, using mb_detect_encoding: ".mb_detect_encoding($a-&gt;new_value)."&lt;/p&gt;"; echo "&lt;p&gt;encoding is, with utf8_decode, using mb_detect_encoding: ".mb_detect_encoding(utf8_decode($a-&gt;new_value))."&lt;/p&gt;"; echo "&lt;hr/&gt;"; echo "&lt;p&gt; straight from db = &lt;pre&gt;".$a-&gt;new_value."&lt;/pre&gt;&lt;/p&gt;"; echo "&lt;p&gt; utf8_decode() = &lt;pre&gt;".utf8_decode($a-&gt;new_value)."&lt;/pre&gt;&lt;/p&gt;"; echo "&lt;hr/&gt;"; $iso88591_2 = iconv('UTF-8', 'ISO-8859-1', $a-&gt;new_value); $iso88591_3 = mb_convert_encoding($a-&gt;new_value, 'ISO-8859-1', 'UTF-8'); echo "&lt;p&gt; iconv() = ".$iso88591_2."&lt;/p&gt;"; echo "&lt;p&gt; mb_convert_encoding() = ".$iso88591_3."&lt;/p&gt;"; echo "&lt;hr/&gt;"; echo "&lt;p&gt;straight from db, using &amp;lt;xmp&amp;gt; = &lt;xmp&gt;".$a-&gt;new_value."&lt;/xmp&gt;&lt;/p&gt;"; echo "&lt;p&gt;utf8_decode(), using &amp;lt;xmp&amp;gt; = &lt;xmp&gt;".utf8_decode($a-&gt;new_value)."&lt;/xmp&gt;&lt;/p&gt;"; } </code></pre> <p>Here are some meta tags from the page:</p> <pre><code>&lt;meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /&gt; &lt;meta name="dc.language" scheme="ISO639-2/T" content="eng" /&gt; </code></pre> <p>IMO, the last meta tag has no bearing.</p> <p><strong>Edit #3</strong></p> <p>Source code:</p> <pre><code>&lt;p&gt;encoding is, straight from db, using mb_detect_encoding: UTF-8&lt;/p&gt;&lt;p&gt;encoding is, with utf8_decode, using mb_detect_encoding: ASCII&lt;/p&gt;&lt;hr/&gt;&lt;p&gt; straight from db = &lt;pre&gt;Ro马eç ³é ¥n franê¡©s&lt;/pre&gt;&lt;/p&gt;&lt;p&gt; utf8_decode() = &lt;pre&gt;Ro?e??n fran?s&lt;/pre&gt;&lt;/p&gt;&lt;hr/&gt;&lt;p&gt; iconv() = Ro&lt;/p&gt;&lt;p&gt; mb_convert_encoding() = Ro?e??n fran?s&lt;/p&gt;&lt;hr/&gt;&lt;p&gt;straight from db, using &amp;lt;xmp&amp;gt; = &lt;xmp&gt;Ro马eç ³é ¥n franê¡©s&lt;/xmp&gt;&lt;/p&gt;&lt;p&gt;utf8_decode(), using &amp;lt;xmp&amp;gt; = &lt;xmp&gt;Ro?e??n fran?s&lt;/xmp&gt;&lt;/p&gt; </code></pre> <p><strong>Edit #4</strong></p> <p>Here is the SQL statement going in to the db:</p> <pre><code>INSERT INTO ed.audit (employee_id, audit_date, audit_action, audit_data, user_id) VALUES ( 75, now(), 'u', '&lt;?xml version="1.0"?&gt; &lt;audit&gt;&lt;audit_detail&gt;&lt;fieldname&gt;role_fra&lt;/fieldname&gt;&lt;old_value&gt;aRo&amp;#x9A6C;e&amp;#x7833;&amp;#x9825;n fran&amp;#xA869;s&lt;/old_value&gt;&lt;new_value&gt;bRo&amp;#x9A6C;e&amp;#x7833;&amp;#x9825;n fran&amp;#xA869;s&lt;/new_value&gt;&lt;/audit_detail&gt;&lt;/audit&gt; ', 333 ); </code></pre> <p>! Note, the text from this XML doesn't necessarily match the screenshots provided above.</p> <p><strong>Edit #5</strong></p> <p>Here's my new function that wraps the CDATA tag around my values for the old_value and new_value nodes:</p> <pre><code>function ed_audit_node($dom, $field, $new, $old){ //create audit_detail node $ad = $dom-&gt;createElement('audit_detail'); $fn = $dom-&gt;createElement('fieldname'); $fn-&gt;appendChild($dom-&gt;createTextNode($field)); $ad-&gt;appendChild($fn); $ov = $dom-&gt;createElement('old_value'); $ov-&gt;appendChild($dom-&gt;createCDATASection($old)); $ad-&gt;appendChild($ov); $nv = $dom-&gt;createElement('new_value'); $nv-&gt;appendChild($dom-&gt;createCDATASection($new)); $ad-&gt;appendChild($nv); //append to document return $ad; } </code></pre> <p>I also added the encoding to the XML document:</p> <pre><code>$dom = new DomDocument('1.0', 'UTF-8'); </code></pre> <p>Here's my new simpleXML call:</p> <pre><code>$xmlData = simplexml_load_string($d['audit_data'], "SimpleXMLElement", LIBXML_NOENT | LIBXML_NOCDATA); </code></pre> <p>I see the CDATA tags in Toad as well. However, I'm still getting an error:</p> <pre><code>Warning: simplexml_load_string() [function.simplexml-load-string]: Entity: line 2: parser error : Input is not proper UTF-8, indicate encoding ! Bytes: 0xE9 0xE9 0x6C 0x65 in &lt;snip&gt; </code></pre> <p><strong>Edit #6</strong></p> <p>I just noticed that the jQuery call returns the proper accented characters in the CDATA.</p>
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