Databases
StackOverflow2013
Postsdbo
POphp xml read out max value on each days
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POphp xml read out max value on each days
    primarykey
    data
    text
    <p>I have a problem where i tries to read out a max temperature value on each day from an xml file. My xml file looks like: </p> <pre><code>&lt;?xml version="1.0"?&gt; &lt;temperature&gt; &lt;measure&gt; &lt;date&gt;2013-06-19 03:18&lt;/date&gt; &lt;sensor1&gt;25.38&lt;/sensor1&gt; &lt;/measure&gt; &lt;measure&gt; &lt;date&gt;2013-06-19 06:18&lt;/date&gt; &lt;sensor1&gt;26.38&lt;/sensor1&gt; &lt;/measure&gt; &lt;measure&gt; &lt;date&gt;2013-06-19 09:18&lt;/date&gt; &lt;sensor1&gt;30.31&lt;/sensor1&gt; &lt;/measure&gt; &lt;measure&gt; &lt;date&gt;2013-06-20 03:18&lt;/date&gt; &lt;sensor1&gt;25.31&lt;/sensor1&gt; &lt;/measure&gt; &lt;measure&gt; &lt;date&gt;2013-06-20 06:18&lt;/date&gt; &lt;sensor1&gt;23.34&lt;/sensor1&gt; &lt;/measure&gt; &lt;measure&gt; &lt;date&gt;2013-06-21 07:18&lt;/date&gt; &lt;sensor1&gt;26.31&lt;/sensor1&gt; &lt;/measure&gt; &lt;measure&gt; &lt;date&gt;2013-06-21 10:18&lt;/date&gt; &lt;sensor1&gt;25.31&lt;/sensor1&gt; &lt;/measure&gt; &lt;/temperature&gt; </code></pre> <p>And what i want as output is like:</p> <pre><code>06/19 max 30.31 06/20 max 25.31 06/21 max 26.31 </code></pre> <p>As im still learning php im stuck. The code i have produced so far is:</p> <pre><code>&lt;?php $xml = simplexml_load_file("test.xml"); $days = array(); $sens1Array = array(); foreach($xml as $temp){ $days[] = $temp-&gt;date . "," . $temp-&gt;sensor1; } $days = array_unique($days); foreach($days as $day){ $day= explode(",", $day); $time = date("m/d", strtotime($day[0])); echo $time . " "; echo "max " . $day[1]; echo "&lt;br&gt;"; } ?&gt; </code></pre> <p>Which outputs:</p> <pre><code>06/19 max 25.38 06/19 max 26.38 06/19 max 30.31 06/20 max 25.31 06/20 max 23.34 06/21 max 26.31 06/21 max 25.31 </code></pre> <p>So what im looking for is some code that can compare each day and only output the max value for that day. I have searched and tried a lot but i can't solve it. </p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USnanab
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload