可以在file_get_content中设置php吗？

Question

I would like to ask can i make the url in file_get_content() become changeable according to the port that user click? For example, if user click port2 will become

$html = file_get_contents('http://..port2.html');

while if user click port 3 will become

$html = file_get_contents('http://..port3.html');

i try to set the link as

$html = file_get_contents('http://..port<?=$mrtg_id?>.html');

but it shown error. Any suggestion?

Answer 1

You can do it in more ways:

$html = file_get_contents("http://..port".$mrtg_id.".html");
$html = file_get_contents("http://..port{$mrtg_id}.html");
$html = file_get_contents("http://..port{$mrtg_id}.html");
$html = file_get_contents('http://..port'.$mrtg_id.'.html');

Note the URL is enclosed with different characters (", ')

Check the manual for more informations: http://php.net/manual/en/language.types.string.php