获取子字符串中最后一个字符的位置

Question

$big = "new york city";
$small ="or";
$pos = strpos($big, $small);
echo $pos;

返回 5，但我希望它返回 6，即“r”的位置。提前致谢

Answer 1

$big = "new york city";
$small ="or";
$pos = strpos($big, $small);
$pos = $pos + strlen($small) - 1;

echo $pos;