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no empty priority tag

this is the output
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<loc>http://www.example.com/</loc>
<lastmod>2013-10-30</lastmod>
<priority>0.9</priority>
</url>
<url>
<loc>http://www.example.com/catalog?item=12&amp;desc=vacation_hawaii</loc>
<lastmod>2013-10-30</lastmod>
<priority>0.9</priority>
</url>
<url>
<loc>http://www.example.com/catalog?item=73&amp;desc=vacation_new_zealand</loc>
<lastmod>2013-10-30</lastmod>
<priority />
</url>
<url>
<loc>http://www.example.com/catalog?item=74&amp;desc=vacation_newfoundland</loc>
<lastmod>2013-10-30</lastmod>
<priority />
</url>
<url>
<loc>http://www.example.com/catalog?item=83&amp;desc=vacation_usa</loc>
<lastmod>2013-10-30</lastmod>
<priority />
</url>
</urlset>

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want to modify this file so there are no empty <priority/> tags in the output for <url></url> that have no priority


want

<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<loc>http://www.example.com/</loc>
<lastmod>2013-10-30</lastmod>
<priority>0.9</priority>
</url>
<url>
<loc>http://www.example.com/catalog?item=12&amp;desc=vacation_hawaii</loc>
<lastmod>2013-10-30</lastmod>
<priority>0.9</priority>
</url>
<url>
<loc>http://www.example.com/catalog?item=73&amp;desc=vacation_new_zealand</loc>
<lastmod>2013-10-30</lastmod>
</url>
<url>
<loc>http://www.example.com/catalog?item=74&amp;desc=vacation_newfoundland</loc>
<lastmod>2013-10-30</lastmod>
</url>
<url>
<loc>http://www.example.com/catalog?item=83&amp;desc=vacation_usa</loc>
<lastmod>2013-10-30</lastmod>
</url>
</urlset>

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from this php file
<?php // RAY_temp_rgb192.php
error_reporting(E_ALL);
echo '<pre>';

// http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/Q_28273696.html

$arr = array
( 'http://www.example.com/,0.9'
, 'http://www.example.com/catalog?item=12&amp;desc=vacation_hawaii,0.9'
, 'http://www.example.com/catalog?item=73&amp;desc=vacation_new_zealand'
, 'http://www.example.com/catalog?item=74&amp;desc=vacation_newfoundland'
, 'http://www.example.com/catalog?item=83&amp;desc=vacation_usa'

)
;

$xml = <<<EOD
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
EOD;

foreach ($arr as $txt)
{
    $txt = explode(',', $txt);
    $url = $txt[0];
    $pri = isset($txt[1]) ? $txt[1] : NULL;
    $xml
    .= PHP_EOL
    . '<url>' . PHP_EOL
    . '<loc>' . $url . '</loc>' . PHP_EOL
    . '<lastmod>' . date('Y-m-d') . '</lastmod>' . PHP_EOL
    ;
    if ($pri)
    {
        $xml .= '<priority>' . $pri . '</priority>' . PHP_EOL;
    }
    else
    {
        $xml .= '<priority />' . PHP_EOL;
    }
    $xml .= '</url>'
    ;
}
$xml .= PHP_EOL . '</urlset>';

// TEST: IS IT A VALID XML DOCUMENT?
$obj = SimpleXML_Load_String($xml);

// SHOW THE WORK PRODUCT
echo htmlentities($xml);

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0
rgb192
Asked:
rgb192
2 Solutions
 
Alexandre SimõesManager / Technology SpecialistCommented:
I'm no PHP expert but can't you just remove this part from your code?
    else
    {
        $xml .= '<priority />' . PHP_EOL;
    }

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0
 
Ray PaseurCommented:
Alexcode is correct.  If you want to do that, omit lines 37 to 40.  

But don't do that!  You want parallel construction in all of your XML documents.  Omitted tags introduce an unpredictability that creates no real savings and only makes the documents more difficult to consume.

You might also want to learn about JSON which is replacing XML at a very rapid rate.
0
 
rgb192Author Commented:
Best answer is how to hide tag. Other answer is avoiding breaking xml
0

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