Home >Backend Development >PHP Tutorial >PHP calculate integer set of extra large numbers
This time I will bring you a integerset for calculating extra-large numbers in PHP. What are the notes for calculating extra-large integers in PHP? Here is a practical case. Let’s take a look. .
No more nonsense, the specific code is as follows:
function getIntAdd($a,$b){ $c = ''; $bCount = strlen($b); $aCount = strlen($a); $count = max($bCount,$aCount); $aDiff = $count - $aCount; $bDiff = $count - $bCount; for($i = $count - 1;$i >= 0;$i--){ $aVal = $count - $i <= $aCount ? intval($a[$i - $aDiff]) : 0; $bVal = $count - $i <= $bCount ? intval($b[$i - $bDiff]) : 0; $v = $aVal + $bVal; if(strlen($c) > 0 && strlen($c) >= $count - $i){ $c = ($v + intval($c[0])).substr($c,1,strlen($c) - 1); }else{ $c = $v.$c.''; } } return $c; } $a = '23490234328490289048902384908392849238'; $b = '234320498324982390489328498230984982399290384902384'; $c = getIntAdd($a,$b); print_r($c);
I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!
Recommended reading:
php Shared Memory Usage and Signal Control Use Case Analysis
In the WeChat applet product details page How to add popup box
The above is the detailed content of PHP calculate integer set of extra large numbers. For more information, please follow other related articles on the PHP Chinese website!