在preg_replace中用array替换字符串

Question

I have a string which I want to filter. I want to find some words which I want to replace using preg_replace. My parameters are an array of words I want to take out from my string, and my replacements is just an empty space. Can someone please help me to solve this problem.

My Code:

$str = "Hello world. It's a beautiful day.";
$para = array("world","day");
$newstr = preg_replace('/\b($para)\b/','',$str);
echo $newstr;

Answer 1

You can use it like this:

$str = "Hello world. It's a beautiful day.";
$para = array("/world/","/day/");
$newstr = preg_replace($para,'',$str);
echo $newstr;