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In PHP, you can use the hex2bin() function to convert hexadecimal values into strings. The function of this function is to convert hexadecimal values into ASCII-encoded character values, that is, strings , the syntax is "hex2bin (hexadecimal value)"; if the conversion is successful, the corresponding string is returned, if it fails, FALSE is returned.
The operating environment of this tutorial: windows7 system, PHP8.1 version, DELL G3 computer
In php, You can use the hex2bin() function to convert hexadecimal values to strings.
hex2bin() function can convert hexadecimal values into ASCII-encoded character values, that is, strings.
Syntax:
hex2bin($string)
$string: Specifies the hexadecimal value to be converted and cannot be omitted.
Return value: Returns the ASCII character value of the converted string, or FALSE if it fails.
Example:
Output:
Explanation:
The opposite effect of the hex2bin() function is the bin2hex() function.
bin2hex() function converts a string of ASCII characters into a hexadecimal value.
bin2hex(string)
Return value: Returns the hexadecimal value of the string to be converted.
"; echo bin2hex("123")."
"; echo bin2hex("10")."
"; ?>
Extended knowledge: Convert other base data into hexadecimal strings
1. dechex() function Conversion
dechex() function converts a decimal number to a hexadecimal number.
dechex(number);
Return value: a string containing a hexadecimal number with a decimal value.
Example:
"; echo dechex("10") . "
"; echo dechex("1587") . "
"; echo dechex("70"); ?>
2. base_convert() function conversion
base_convert() function converts numbers between arbitrary bases.
base_convert(number,frombase,tobase);
| Parameters | Description |
|---|---|
| number | Required . Specifies the number to be converted. |
| frombase | Required. Specifies the original base of the number. Between 2 and 36 (inclusive). Numbers above decimal are represented by the letters a-z, such as a for 10, b for 11, and z for 35. |
| tobase | Required. Specifies the base to be converted. Between 2 and 36 (inclusive). Numbers above decimal are represented by the letters a-z, such as a for 10, b for 11, and z for 35. |
When the value of parametertobaseis 16, other base numbers can be converted into hexadecimal numbers.
Example:
"; echo base_convert("364", 8, 16) . "
"; ?>
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