PHP Simple HTML DOM Parser Call to a member function children() on a non-object

问题

I'm pretty new to PHP, so i try to use Simple HTML DOM Parser to get the information i need from a website. here is the sample node:

<div>
    <h1>Hello</h1>
    <figure id="XXX">
        <div class="abc">ABC</div>
        <div class="qwe">QWE</div>
        <div class="zxc">ZXC</div>
    </figure>
</div>

$element contain above node. What i need to get is the "QWE", so i try:

$name = $element->find('figure[id=XXX]')->children(1)->innertext;

but now the problem: Fatal error: Call to a member function children() on a non-object , that is no problem if i stop at find('figure[id=XXX]'), but it return array and i can't get the exact information.

Any solution? Please help, thanks in advance.

回答1:

There you go:

 $str = '<div>
            <h1>Hello</h1>
            <figure id="XXX">
            <div class="abc">ABC</div>
            <div class="qwe">QWE</div>
            <div class="zxc">ZXC</div>
            </figure>
        </div>';

$html = str_get_html($str);

$str = $html->find('figure[id=XXX]',0)->children(1)->plaintext;

echo($str);

find returns elements and you need single element so set index 0 (the first one) at the second parameter in find

回答2:

It's better to do:

$html->find('figure#XXX > *[2]',0)->plaintext;

来源：https://stackoverflow.com/questions/16147044/php-simple-html-dom-parser-call-to-a-member-function-children-on-a-non-object