php - Get specific tag from api code -

i want img src tag following code:

<pod title="scientific name" scanner="data" id="scientificname:speciesdata" position="200" error="false" numsubpods="1"> <subpod title=""> <plaintext>canis lupus familiaris</plaintext> <img src="http://www4a.wolframalpha.com/calculate/msp/msp17941cd1c5fi21h72ac2000057i1ae7gc4986gdf?mspstoretype=image/gif&s=44" alt="canis lupus familiaris" title="canis lupus familiaris" width="139" height="18"/> </subpod> </pod> 

i know how plaintext information how img src information? here's have plaintext information:

<?php if(isset($_post['q'])){ include 'wolframalphaengine.php'; $engine = new wolframalphaengine( 'app-id' );  $resp = $engine->getresults("$q");  $pod = $resp->getpods();  $pod1 = $pod[1];   foreach($pod1->getsubpods() $subpod){   if($subpod->plaintext){     $plaintext = $subpod->plaintext;     break;   } }  $result = substr($plaintext, 0,strlen($plaintext)-3);  echo "$plaintext";  } ?> 

it's not duplicate of grabbing href attribute of element because can't use dom on godaddy hosting. i've tried before.

i've never worked wolframalphaengine before. assume it's one:

• https://github.com/brkeerthi/chethana

if so, have @ https://github.com/brkeerthi/chethana/blob/master/include/wasubpod.php

class wasubpod {   // define sections of response   public $attributes = array();   public $plaintext = '';   public $image = '';   public $minput = '';   public $moutput = '';   public $mathml = ''; 

as can see, has properties not plaintext, attributes , other stuff. might easy

foreach ($pod1->getsubpods() $subpod) {     $attributes = $subpod->attributes;     if (isset($attributes['src']) {         echo $attributes['src'];     } } 

but since documentation of library non-existent, cannot tell. if doesn't work, var_dump $subpod see contains.

likewise, have @ other classes find out do:

• https://github.com/brkeerthi/chethana/tree/master/include