bin2hex

Definition and usage

bin2hex() function converts the string of ASCII characters into hexadecimal values. Strings can be converted back by using the pack() function.

Example

Example 1

Convert "Shanghai" to hexadecimal value:

 <?php
$str = bin2hex ( "Shanghai" ) ;
echo ( $str ) ;
?>

Try it yourself

Example 2

Convert a string value from binary to hexadecimal and then convert it back:

 <?php
$str = "Shanghai" ;
echo bin2hex ( $str ) . "<br>" ;
echo pack ( "H*" , bin2hex ( $str ) ) . "<br>" ;
?>

Try it yourself

grammar

 bin2hex ( string )