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June 21st, 2017, 02:13 AM   #11
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<?php
\$d= hexdec("A8");

for (\$n=0; \$n < 6; \$n++) {
echo dechex(++\$d) . PHP_EOL;
}
?>

Last edited by skipjack; June 21st, 2017 at 02:16 AM.
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July 11th, 2017, 11:57 AM   #12
pst
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Quote:
Originally Posted by pvesel View Post
Thank you for your answer. However this is pure math:

https://en.wikipedia.org/wiki/Hexadecimal and it is connected to the code above. However:
How can you get: A9 B0, B1

Math functions are the core of the php.

If anyone has any idea how to go through this, with any good books, samples will be rewarded. I went through w3 school all the task, read some books, but it is not enough for understand loops.
Hexadecimal is a number system just like our decimal base 10 system. To say it's "pure math" is like saying the decimal system is pure math. It's just a way to represent numbers.

A good book would be a book reference for Hexadecimal and PHP, not a math book.
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