PHP hex2bin () function
Examples
To convert a hexadecimal value to ASCII characters:
<?php
echo hex2bin("48656c6c6f20576f726c6421");
?>
echo hex2bin("48656c6c6f20576f726c6421");
?>
Examples of the above output:
Hello World!
Definition and Usage
hex2bin () function to convert a string of hexadecimal values to ASCII characters.
grammar
hex2bin( string )
参数 | 描述 |
---|---|
string | 必需。要转换的十六进制值。 |
technical details
return value: | Returns the converted string of ASCII characters, and if that fails it returns FALSE. |
---|---|
PHP version: | 5.4.0+ |
Update log: | Since PHP 5.4.1 onwards, if the string length is odd, then throw a warning. In PHP 5.4.0, the odd string is silently accepted, but the last byte will be removed. Since PHP 5.5.1 onwards, if the string is not a valid hexadecimal string, a warning is thrown. |
PHP String Reference