Sometimes, we want to extract a single unsigned integer from a string with PHP.
In this article, we’ll look at how to extract a single unsigned integer from a string with PHP.
How to extract a single unsigned integer from a string with PHP?
To extract a single unsigned integer from a string with PHP, we can call filter_var with FILTER_SANITIZE_NUMBER_INT.
For instance, we write
$str = 'In My Cart: 100 items';
$int = (int) filter_var($str, FILTER_SANITIZE_NUMBER_INT);
to extract 100 from $str by calling filter_var with $str and FILTER_SANITIZE_NUMBER_INT.
And then we convert the returned string to an integer with int.
Conclusion
To extract a single unsigned integer from a string with PHP, we can call filter_var with FILTER_SANITIZE_NUMBER_INT.
