Question

I’ve got two integers and I need to convert them into a long. I’m totally lost on how to do this. The two integers that I need to convert are:

INT 1: 60850985 
INT 2: 59150141

I need a method that converts two integers into a long. If you can post one, that’d be great.

When I say converting to a long, I’m wondering how you would do the equivalent of (long) from java in PHP

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Let me be completely clear here:
I’m receiving two ints from the client, then I need to convert them to a long, then the single long is to be used again as a single int.

In essence, I need to take two ints and convert them into a single int. An example of how this is done in java would be:

  long $intA = (long) readInt();
  long $intB = (long) readInt();
  return ($intA << 32) + $intB;

Answer 1

I used regular addition:

$int1 = 60850985;
$int2 = 59150141;
$result = $int1 + $int2;//120001126

Here’s a quote from the PHP manual:

The size of an integer is platform-dependent, although a maximum value
of about two billion is the usual value (that’s 32 bits signed).
64-bit platforms usually have a maximum value of about 9E18. PHP does
not support unsigned integers. Integer size can be determined using
the constant PHP_INT_SIZE, and maximum value using the constant
PHP_INT_MAX since PHP 4.4.0 and PHP 5.0.5.

If you want to deal with large numbers use GMP ( http://www.php.net/manual/en/book.gmp.php ) or BCMath ( http://www.php.net/manual/en/book.bc.php ).

To elaborate on what AgentConundrum said, there isn’t a need to cast an integer to a long in PHP. PHP is a dynamic language which means that generally, for operations on fundamental types, there is no need for casting (unless it is for some explicit purpose – i.e. a float to an integer), as PHP handles it for you.