<?php 
 
use voku\helper\SimpleHtmlDomInterface; 
use voku\helper\SimpleHtmlDomNode; 
use voku\helper\SimpleHtmlDomNodeInterface; 
 
require_once '../vendor/autoload.php'; 
 
/** 
 * @param \voku\helper\HtmlDomParser $dom 
 * @param string                     $selector 
 * @param string                     $keyword 
 * 
 * @return SimpleHtmlDomInterface[]|SimpleHtmlDomNodeInterface<SimpleHtmlDomInterface> 
 */ 
function find_contains( 
    \voku\helper\HtmlDomParser $dom, 
    string $selector, 
    string $keyword 
) { 
    // init 
    $elements = new SimpleHtmlDomNode(); 
 
    foreach ($dom->find($selector) as $e) { 
        if (strpos($e->innerText(), $keyword) !== false) { 
            $elements[] = $e; 
        } 
    } 
 
    return $elements; 
} 
 
// ----------------------------------------------------------------------------- 
 
$html = ' 
<p class="lall">lall<br></p> 
<p class="lall">foo</p> 
<ul><li class="lall">test321<br>foo</li><!----></ul> 
'; 
 
$document = new \voku\helper\HtmlDomParser($html); 
 
foreach (find_contains($document, '.lall', 'foo') as $child_dom) { 
    echo $child_dom->html() . "\n"; 
} 
 
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