匹配字符串中的单词

Question

我有两串关键字

$keystring1 = "tech,php,radio,love";
$keystring2 = "Mtn,huntung,php,tv,tech";

我如何返回两个字符串中常见的关键字

Answer 1

你可以这样做:

$common = array_intersect(explode(",", $keystring1), explode(",", $keystring2));

如果你想让它们重新成为字符串,你可以implode回来.