Online PHP editor | output for XdLFN

<?php $resultApi = '<fieldset class="relative"> <div> <h5><button>CABIN #1</button></h5> </div> <div>EMPTY</div> </fieldset> <fieldset class="relative"> <div> <h5><button>CABIN #2</button></h5> </div> <div> <select data-id="222"> <option value="1">Op#1</option> <option value="2">Op#2</option> </select> </div> </fieldset> <fieldset class="relative"> <div> <h5><button>CABIN #3</button></h5> </div> <div> <select data-id="223"> <option value="1">Op#1</option> <option value="2">Op#2</option> <option value="3">Op#3</option> </select> </div> </fieldset>'; $dom = new \DOMDocument(); @$dom->loadHTML($resultApi); // Create a DOMXPath instance and locate elements $xpath = new \DOMXPath($dom); $items = $xpath->query("//fieldset[@class='relative']"); $result = []; foreach ($items as $node) { $title = $xpath->query('.//following-sibling::h5/button', $node)->item(0)->nodeValue; $div = $xpath->query('.//following-sibling::select', $node); $result[$title]= 0; if($div->length){ foreach ($div as $option) { $children = $option->childNodes; $countOp = 1; foreach ($children as $child) { if($child->nodeName === 'option' && $child->nodeValue !== '-'){ $result[$title]= $countOp++; } } } } } print_r($result);