PHP code to extract the first picture on the page as a thumbnail

$p = '//i';
preg_match_all($ p,$str,$match);
print_r($match[1][0]);
?>

The result is: http://usr .im/200x60?bg=3498DB&text=tool.lu


The result is: http://img.it-home.org/data/attachment/forum/2016pic2/55c877240001291602790279-80-80.jpg

The picture shows, the first one, PHP