@ 2013-06-06T19:18:02Z <?php
$bits32 = 32;
$bits64 = 64;
$N32 = 0xfffffffe;
$N64 = 0xfffffffffffffffe;
$result = -( pow(2, $bits32) - $N32 );
echo $result,"\n";
echo pow(2,$bits32) , "\n",$N32;
$result = -( pow(2, $bits64) - $N64 );
echo $result,"\n";
echo pow(2,$bits64) - PHP_INT_MAX, "\n",$N64 - PHP_INT_MAX;
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Output for 7.0.2 - 7.0.33 , 7.1.0 - 7.1.33 , 7.2.0 - 7.2.33 , 7.3.0 - 7.3.33 , 7.4.0 - 7.4.33 , 8.0.0 - 8.0.30 , 8.1.0 - 8.1.28 , 8.2.0 - 8.2.18 , 8.3.0 - 8.3.6 -2
4294967296
4294967294-0
9.2233720368548E+18
9.2233720368548E+18 Output for 4.4.0 - 4.4.9 , 5.0.5 , 5.1.0 - 5.1.6 , 5.2.0 - 5.2.17 , 5.3.0 - 5.3.29 , 5.4.0 - 5.4.45 , 5.5.0 - 5.5.38 , 5.6.0 - 5.6.40 , 7.0.0 - 7.0.1 -2
4294967296
42949672940
9.2233720368548E+18
9.2233720368548E+18 Output for 4.3.0 - 4.3.11 , 5.0.0 - 5.0.4 -2
4294967296
42949672940
Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/I7AMn on line 14
1.844674407371E+19
Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/I7AMn on line 14
1.844674407371E+19 preferences:dark mode live preview
302.68 ms | 402 KiB | 460 Q