如何在php中用字母数字值检查pdf字数？

Question

当我从pdf获取文本时，可能是编码问题。

Answer 1

I dont know exactly how this works, but with explode() and count() you can archieve something like that:

$words = count(explode(" ", $string));

Example:

$string = "Hey i am 21 years old and 165 cm";
$words = count(explode(" ", $string));
echo $words; //returns 9