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Related function description:
iconv
command is used to convert the encoding of the file. For example, it can convert UTF8 encoding to GB18030 encoding, and vice versa.
str_split()
Function splits a string into an array.
bin2hex()
Function converts a string of ASCII characters to a hexadecimal value. Strings can be converted back using the pack() function.
hexdec()
Function converts a hexadecimal number into a decimal number.
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Examples are as follows:
/** * $str 原始中文字符串 * $encoding 原始字符串的编码,默认GBK * $prefix 编码后的前缀,默认"&#" * $postfix 编码后的后缀,默认";" */ function unicode_encode($str, $encoding = 'GBK', $prefix = '&#', $postfix = ';') { $str = iconv($encoding, 'UCS-2', $str); $arrstr = str_split($str, 2); $unistr = ''; for($i = 0, $len = count($arrstr); $i < $len; $i++) { $dec = hexdec(bin2hex($arrstr[$i])); $unistr .= $prefix . $dec . $postfix; } return $unistr; }
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