比较字符串与前导零

Question

I need to check if two strings (numbers) are the same. However if one of the strings has a leading zero, then all bets are off - it says they are equal:

$hospitalno1 = "64583";                 
$hospitalno2 = "064583";

if ($hospitalno1 <> $hospitalno2){ 
    echo "Different";
} 

How can I compare these two variables as strings rather than as numbers?

Answer 1

Cast them to int:

$hospitalno1 = "64583";                 
$hospitalno2 = "064583";

if ((int)$hospitalno1 != (int)$hospitalno2){ 
    echo "Different";
} 

yet beware "this string" will become 0, so add is_int() prior conversion.

Also instead of <> you should use != despite the fact the former will work in PHP, the latter is cross language standard.