Compare string "numerically first"

Question

I want to compare two string "numerically". I mean like 2C is less than 11A. I tried this and it's not working:

if("2A" < "11A"){
    echo "First corect";
}

if(strcmp("2A", "11A") < 0){
    echo "Last corect";
}

echo "Tests completed";

Answer 1

You are looking for strnatcmp (or its case-insensitive sibling, strnatcasecmp).

This will compare the numeric parts of your input as numbers (placing "2whatever" before "11whatever") and the textual parts as text (placing "2a" before "2b").

Answer 2

Try it like this:

if((int) '2A' < (int) '11A'){
    echo "First correct";
}

You can also take a look at: http://php.net/manual/en/function.intval.php