Anonymní profil peter – Programujte.com

Tak ja ti pomuzu googlovat, dobre.
1. otevres stranku google.com (ono to presmeruje na google.cz)
2. do vyhledavaciho policka zadas: php regullar expression tag params
3. kliknes na prvni nalezenou stranku, shodou okolnosti manual a tam je

$patterns = array(
            "/\[link\](.*?)\[\/link\]/",
            "/\[url\](.*?)\[\/url\]/",
            "/\[img\](.*?)\[\/img\]/",
            "/\[b\](.*?)\[\/b\]/",
            "/\[u\](.*?)\[\/u\]/",
            "/\[i\](.*?)\[\/i\]/"
        );
        $replacements = array(
            "<a href=\"\\1\">\\1</a>",
            "<a href=\"\\1\">\\1</a>",
            "<img src=\"\\1\">",
            "<b>\\1</b>",
            "<u>\\1</u>",
            "<i>\\1</i>"
           
        );
        $newText = preg_replace($patterns,$replacements, $text);

---

function strip_selected_tags($str, $tags = "", $stripContent = false)
{
    preg_match_all("/<([^>]+)>/i", $tags, $allTags, PREG_PATTERN_ORDER);
    $replace = "%(<$tag.*?>)(.*?)(<\/$tag.*?>)%is";
    foreach ($allTags[1] as $tag) {
        if ($stripContent) {
            $str = preg_replace($replace,'',$str);
        }
            $str = preg_replace($replace,'${2}',$str);
    }
    return $str;
}
?>

3b. Asi paty odkaz vede na stackoverflow, pomerne zname forko plne uzitecnych rad
https://stackoverflow.com/…apture-group
Parsovani url, to je podobne.

<?php
$str="member.php?action=bla&arg=2&test=15&schedule=16#test";
preg_match_all('/([^?&=#]+)=([^&#]*)/',$str,$m);
print_r($m);

//combine the keys and values onto an assoc array
$data=array_combine( $m[1], $m[2]);
print_r($data);
?>

3c. Dalsi link ze stack, a tam odkaz na demicko
https://regex101.com/r/kG5vF1/4 ;

Pomoci vyrazu
/(?:<html|(?<!^)\G)\h*(?:([^=\n\h]+)=(['"])((?:\\\2|(?!\2).)*)\2)?/gmi
Parsuji 
<html>
<html lang="en">
<html class="my-class">
<html class="my-class" lang="en">

No, a proc to neresis html parserem?
google = php html parse
http://php.net/…tml.php ;

$doc = new DOMDocument();
$doc->loadHTML("<html><body>Test<br></body></html>");
echo $doc->saveHTML();
?>

---

<?php
$doc = new DOMDocument();
$doc->loadHTML('<?xml encoding="UTF-8">' . $html);
// dirty fix
foreach ($doc->childNodes as $item)
    if ($item->nodeType == XML_PI_NODE)
        $doc->removeChild($item); // remove hack
$doc->encoding = 'UTF-8'; // insert proper
?>

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