Merge pull request #5 from sandfoxme/php-8.4

PHP 8.4 Support

Author: frederikbosch

composer.json

@@ -24,7 +24,7 @@
     "keywords": [ "x690", "x.690", "x.509", "x509", "asn1", "asn.1", "ber", "der", "binary", "encoding", "decoding" ],
 
     "require": {
-        "php": "~8.1.0 || ~8.2.0 || ~8.3.0"
+        "php": "~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.0",

lib/Utility/BigIntegerGmp.php

@@ -106,21 +106,21 @@ public function toPower($b)
             $b = gmp_intval($b->_rh);
         }
         $ret = new self();
-        $ret->_rh = gmp_pow($this->_rh, $b);
+        $ret->_rh = $this->_rh ** $b;
         return $ret;
     }
 
     public function shiftRight($bits=8)
     {
         $ret = new self();
-        $ret->_rh = gmp_div($this->_rh, gmp_pow(2, $bits));
+        $ret->_rh = $this->_rh >> $bits;
         return $ret;
     }
 
     public function shiftLeft($bits=8)
     {
         $ret = new self();
-        $ret->_rh = gmp_mul($this->_rh, gmp_pow(2, $bits));
+        $ret->_rh = $this->_rh << $bits;
         return $ret;
     }