PHP Outputting the Value of a Variable Outputting large integers
Example
On 32-bits systems, integers larger than PHP_INT_MAX are automatically converted to float. Outputting these as integer values (i.e. non-scientific notation) can be done with printf, using the float representation, as illustrated below:
foreach ([1, 2, 3, 4, 5, 6, 9, 12] as $p) {
$i = pow(1024, $p);
printf("pow(1024, %d) > (%7s) %20s %38.0F", $p, gettype($i), $i, $i);
echo " ", $i, "\n";
}
// outputs:
pow(1024, 1) integer 1024 1024 1024
pow(1024, 2) integer 1048576 1048576 1048576
pow(1024, 3) integer 1073741824 1073741824 1073741824
pow(1024, 4) double 1099511627776 1099511627776 1099511627776
pow(1024, 5) double 1.1258999068426E+15 1125899906842624 1.1258999068426E+15
pow(1024, 6) double 1.1529215046068E+18 1152921504606846976 1.1529215046068E+18
pow(1024, 9) double 1.2379400392854E+27 1237940039285380274899124224 1.2379400392854E+27
pow(1024, 12) double 1.3292279957849E+36 1329227995784915872903807060280344576 1.3292279957849E+36
Note: watch out for float precision, which is not infinite!
While this looks nice, in this contrived example the numbers can all be represented as a binary number since they are all powers of 1024 (and thus 2). See for example:
$n = pow(10, 27);
printf("%s %.0F\n", $n, $n);
// 1.0E+27 1000000000000000013287555072
