printf conversion specifiers

Question 1

%

Answer 1

display a % character (no arg is required)

Question 2

b

Answer 2

display arg as a binary integer

1111011

Question 3

c

Answer 3

display ascii character for the arg

{

Question 4

d

Answer 4

display arg as a signed decimal integer

123

Question 5

e

Answer 5

display arg using scientific notation

1.23000e+2

Question 6

f

Answer 6

display arg as floating point

123.000000

Question 7

o

Answer 7

display arg as an octal integer

173

Question 8

s

Answer 8

display arg as a string

123

Question 9

u

Answer 9

display arg as an unsigned decimal

123

Question 10

x

Answer 10

display arg as a lowercase hexadecimal

7b

Question 11

X

Answer 11

display arg in uppercase hexadecimal

7B

Question 12

sprintf

Answer 12

send the output to another variable rather than to the browser. useful for making conversions. for example:

$hexstring = sprintf(“%X%X%X”, 65, 127, 245);