Check if a String Ends with a Number in PHP

Question

I\'m trying to implement the function below. Would it be best to use some type of regex here? I need to capture the number too.

function endsWithNumber($stri         


        

Answer 1

$test="abc123";
//$test="abc123n";
$r = preg_match_all("/.*?(\d+)$/", $test, $matches);
//echo $r;
//print_r($matches);
if($r>0) {
    echo $matches[count($matches)-1][0];
}

the regex is explained as follows:

.*? - this will take up all the characters in the string from the start up until a match for the subsequent part is also found.

(\d+)$ - this is one or more digits up until the end of the string, grouped.

without the ? in the first part, only the last digit will be matched in the second part because all digits before it would be taken up by the .*