Converting Unicode characters to uxxxx format using PHP

You can use the following code for going back and forward.

if (!function_exists('codepoint_encode')) {
    function codepoint_encode($str) {
        return substr(json_encode($str), 1, -1);
    }
}

if (!function_exists('codepoint_decode')) {
    function codepoint_decode($str) {
        return json_decode(sprintf('"%s"', $str));
    }
}

How to use :

echo "\nUse JSON encoding / decoding\n";
var_dump(codepoint_encode("我好"));
var_dump(codepoint_decode('\u6211\u597d'));

Output :

Use JSON encoding / decoding
string(12) "\u6211\u597d"
string(6) "我好"

Found a mistake? Have a question or improvement idea? Let me know.

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