如何在php中将字符串转换为整数

Question

I have a variable $var1 = "21,855.00". I already tried using preg_replace and str_replace but I could not really achieve what I was looking for. I wish to echo it as 21855. How can I do that using PHP?

Answer 1

Just taking note:

If its a literal string like:

$var1 = '21,855.00'; // string(9) "21,855.00"

You can also do it this way:

$var1 = '21,855.00';
$var2 = filter_var(strtok($var1, '.'), FILTER_SANITIZE_NUMBER_INT);
echo $var2; // 21855

Sample Output

Or with regex:

$var1 = '21,855.00';
$var2 = (int) preg_replace('/(?<=\d),(?=\d{3}\b)/','', $var1);
var_dump($var2); // int(21855)