Из поля WCF будет только использовать конструктора по умолчанию, Вы не можете использовать параметризованных конструкторов. Необходимо сделать, немного дополнительной работы для совершения вызова WCF параметризовало конструкторов.
Вы могли попробовать это:
Это то, что я пробовал, но не могу распечатать значение src
$dom = new domDocument;
/*** load the html into the object ***/
$dom->loadHTML($html);
/*** discard white space ***/
$dom->preserveWhiteSpace = false;
/*** the table by its tag name ***/
$images = $dom->getElementsByTagName('img');
/*** loop over the table rows ***/
foreach ($images as $img)
{
/*** get each column by tag name ***/
$url = $img->getElementsByTagName('src');
/*** echo the values ***/
echo $url->nodeValue;
echo '<hr />';
}
РЕДАКТИРОВАТЬ: Я решил эту проблему
$dom = new domDocument;
/*** load the html into the object ***/
$dom->loadHTML($string);
/*** discard white space ***/
$dom->preserveWhiteSpace = false;
$images = $dom->getElementsByTagName('img');
foreach($images as $img)
{
$url = $img->getAttribute('src');
$alt = $img->getAttribute('alt');
echo "Title: $alt<br>$url<br>";
}
Don't do this with regular expressions. Instead, parse the HTML. Take a look at Parse HTML With PHP And DOM. This is a standard feature in PHP 5.2.x (and probably earlier). Basically the logic for getting images is roughly:
$dom = new domDocument;
$dom->loadHTML($html);
$dom->preserveWhiteSpace = false;
$images = $dom->getElementsByTagName('img');
foreach ($images as $image) {
echo $image->getAttribute('src');
}
This should be trivial to adapt to finding images.
Note that Regular Expressions are a bad approach to parsing anything that involves matching braces.
You'd be better off using the DOMDocument class.
You assume that you can parse HTML using regular expressions. That may work for some sites, but not all sites. Since you are limiting yourself to only a subset of all web pages, it would be interesting to know how you limit yourself... maybe you can parse the HTML in a quite easy way from php.