Php hexdec () and dechex () hexadecimal conversion to decimal interchange

The hexdec () function converts hexadecimal to decimal.

Syntax
Hexdec (hex_string)

Echo hexdec ('77 '); // output 119
Echo "<br> ";
Echo hexdec (dechex (43); // output 43
Echo "<br> ";
Echo hexdec ('3a '); // output 58

The dechex () function converts decimal to hexadecimal.

Syntax
Dechex (dec_number)