PHP Largest Possible Integer Constant

Was reading the PHP manual on integer overflow in the manual and was wondering: is there a PH开发者_开发技巧P pre-defined constant for the current largest integer value possible? Something equivalent to the JavaScript Number.MAX_VALUE constant.

From here:

PHP_INT_MAX (integer)
    Available since PHP 4.4.0 and PHP 5.0.5 

PHP_INT_MAX according to PHP.net. Please note that the actual max value depends on whether PHP is compiled for 32bit or 64bit.

Also, you can use PHP_INT_SIZE to get the size of the integer.

The PHP_INT_MAX contant contains the largest possible integer (in PHP 4.4.0/5.0.5 and newer).

On 32-bit system, this would normally be 2147483647 (2.1 * 10⁹). On a 64-bit system, it would usually be 9223372036854775807 (9.2 * 10¹⁸).