PHP bin2hex()Functions
Examples
Convert "Hello World!" to a hexadecimal value:
<?php
$str = bin2hex("Hello World!");
echo($str);
?>
$str = bin2hex("Hello World!");
echo($str);
?>
Run Example »
Definition and Usage
The bin2hex() function converts a string of ASCII characters to hexadecimal values. The string can be converted back by using the pack() function.
Syntax
bin2hex(string)
| Parameters | Description |
|---|---|
| string | Required. Specifies the string to be converted. |
Technical Details
| Return Value: | Returns the hexadecimal value of the string to be converted. |
|---|---|
| PHP Version: | 4+ |
More Examples
Example 1
Convert a string value from binary to hexadecimal, and then convert it back:
<?php
$str = "Hello world!";
echo bin2hex($str) . "<br>";
echo pack("H*",bin2hex($str)) . "<br>";
?>
$str = "Hello world!";
echo bin2hex($str) . "<br>";
echo pack("H*",bin2hex($str)) . "<br>";
?>
Run Example »
PHP String Reference Manual Other Extensions