PHP/Data Type/Hexadecimal Number
dechex: convert decimal to hexadecimal
<source lang="html4strict">
<?php
$orig_dec = 255;
$dec2hex = dechex($orig_dec);
$hex2dec = hexdec($dec2hex);
echo "original decimal number: $orig_dec
";
echo "new hexadecimal number: $dec2hex
";
echo "back to decimal: $hex2dec
";
?>
</source>
hexdec: convert hexadecimal to decimal
<source lang="html4strict">
<?php
$orig_dec = 255;
$dec2hex = dechex($orig_dec);
$hex2dec = hexdec($dec2hex);
echo "original decimal number: $orig_dec
";
echo "new hexadecimal number: $dec2hex
";
echo "back to decimal: $hex2dec
";
?>
</source>