Home > Article > Backend Development > PHP calculates two particularly large integers example code
This article mainly introduces the example codes for PHP calculation of two particularly large integers. It has a certain reference value. Now I share it with you. Friends in need can refer to it.
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);
Related recommendations:
PHP Calculation Cosine Similarity Algorithm Example
The above is the detailed content of PHP calculates two particularly large integers example code. For more information, please follow other related articles on the PHP Chinese website!