how to check if string is valid XHTML using PHP?

Question

Using

    $html = '<br /><p>k</p>';
libxml_use_internal_errors(true);
$dom = New DOMDocument();
$dom -> loadXML($correo_elhtml);
echo '<pre>';
if(empty(libxml_get_errors())){
    echo "This is a good HTML";
    }
else {
    echo "This not html";
    print_r(libxml_get_errors());
    }

return ERROR, however that is a valid XHTML STRING.

Some function please?

Well-formed XML has a single root node.

Alohci
– Alohci

2021-04-10 02:48:21 +00:00
Commented Apr 10, 2021 at 2:48 — Alohci
– Alohci, Commented Apr 10, 2021 at 2:48

Ehsan · Accepted Answer · 2021-04-10 04:07:10Z

1

This code is a correct HTML but is NOT correct as XML, because empty-element tag, such as <br /> in XML must used only between <section></section>

So you can use $dom -> loadHTML($html); or remove <be /> from your HTML and then use $dom -> loadXML($html);

answered Apr 10, 2021 at 4:07

Ehsan

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6 Comments

Stackoverflow Over a year ago

Thanks masters @Alohci and @Ehsan. Then a practice infalible to test ANY string is: $dom -> loadXML('<div>'.$html.'</div>'); ?

Ehsan Over a year ago

@Stackoverflow please mark my response as your question answer

Stackoverflow Over a year ago

Master @Ehsan I doit many hours back: https://pasteboard.co/JWSM6l1.png

Stackoverflow Over a year ago

Master @Ehsan I done it many hours back!.

Stackoverflow Over a year ago

oh god! by first time I see this option. SORRY. Just I put in this option now. Many thanks by your lesson #2 :-)

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