# PHP Bitwise

 What are the php bitwise operators? ~ (NOT)& (AND)| (OR)^ (XOR) exclusive or<< SHIFT BITS LEFT>> SHIFT BITS RIGHT Shifting a number 1 bit to the left is the same of ________ by 2 Multiplying Shifting a number 1 bit to the right is the same of ________ by 2 Dividing var_dump(6&3); 2 00000110 600000011 &300000010 2 To find out the max value of an integer we use the constant 'PHP_INT_MAX'To find out the size of an integer we use the constant 'PHP_INT_SIZE' What is the sun of the binary bits, 1 + 1 ? 10 What is the output of the following: output is -3//++ has higher precendent than ~ so \$a++ is executed first.But since \$a++ is post-increment the value remains 2;then the binary bits of 2 is negated which results in the valuebeing negative -3. What is the output of the following: output is -6// \$a++ is pre-increment the value becomes 5;then the binary bits of 5 is negated which results in the value being negative -6. What is the out of : print 20 % 3 2 what is output of : print 0 % 8; 8 what is output of : print 7 % 11; 7 put the following in order based on their precedent 1) left << >> 2)right = += -= *= /= .= %= &= |= ^= <<= >>= 3) non [] () 4)left && 6) right new 7)left XOR 8) left + - . 9)left ^ 14)left OR 15) left * / % 16) non == != === !== 17)left | 18) right !~ ++ -- (int)(float)...@ 19)left || 20)left AND 10)left ? : 11) non < <= > > = <> 12)left , 13)left & 631815811116139174191022071412 what is the output of the following \$b = 2; \$z = 7 + (2 * 3) + \$b *= 6 - 4 << 2; print \$z; output is : 29\$z = (7 + (2 * 3)) + \$b *= ((6 -4) << 2);\$z = 13 + \$b *= 8;\$z = 13 + 16;\$z = 29; \$b = 3; \$z = 4 << 2 + 5 + \$b *= 2 * 3; output is 530:\$z = (4 << (2 + 5)) + \$b *= (2 *3);\$z = 4 << 7 + \$b *= 6;\$z = 4 * 128 + \$b *= 6;\$z = 512 + (\$b *= 6);\$z = 512 + 18;\$z = 530; What is the output of the following: \$b = 2; \$c = 1; \$z = 3 + 2 << 2 + \$b += 3 * \$c * = 1; print \$z; //output is 128//(\$c *= 1) needs to be evaluated so that we //can multiply\$z = 3 + 2 << 2 + \$b += (3 * (\$c *= 1));\$z = (3 + 2) << (2 + (\$b += 3));\$z = 5 << 7;\$z = 5 * 128;\$z = 128\$z = 640;\$z = 128; in which direction is ~ - (int) (float) (string) (array) (object) (bool) @ evaluated? RIGHT to LEFT in which direction is * / % + - . evaluated? LEFT to RIGHT in which direction is << >> evaluated? LEFT to RIGHT in which direction is & ^ | evaluated? LEFT to RIGHT in which direction is && || ? : evaluated? LEFT to RIGHT in which direction is = += -= *= /= .= %= &= |= ^= <<= >>= evaluated? RIGHT to LEFT in which direction is and xor or , evaluated? LEFT to RIGHT in which direction is < <= > >= <> == != === !== evaluated? They are NON Associative Authorstarkisspk ID9582 Card SetPHP Bitwise DescriptionEverything Bitwise and Operators Updated2010-03-14T09:47:28Z Show Answers