PHP preg_replace html comments with empty space

Question

I have a bit of php code like this:

$test = "<!--my comment goes here--> Hello World";

Now i want to strip the whole html comment from the string, i know i need to use preg_replace, but now sure on the regex to go in there. Can anybody help? Thanks

Answer 1

$str=<<<'EOF'
<!--my comment goes here--> Hello World"
blah  <!-- my another
comment here --> blah2
end
EOF;

$r="";
$s=explode("-->",$str);
foreach($s as $v){
  $m=strpos($v,'<!--');
  if($m!==FALSE){
   $r.=substr($v,1,$m);
  }
}
$r.=end($s);
print $r."\n";

output

$ php test.php
Hello World"
blah  < blah2
end

Or if you must preg_replace,

preg_replace("/<!--.*?-->/ms","",$str);