How can I convert a string from \uD83D\uDE00 to full \U0001f603?
json_encode() only converts to the first option...
$str = '';
$encode = json_encode($str);
var_dump($encode);
// string(14) ""\ud83d\ude03""
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miken32
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Dima Opiums
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I'm not sure there's a built in function for that, so you should roll your own, maybe using preg_replace_callback.. However, what is the use case here? You mention JSON, but JSON can't use the `\U` syntax. – Mr Lister Feb 12 '20 at 12:06
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Assuming you have the Intl extension installed, this is easy enough to do with one of its built-in transliterators:
<?php
$str = "";
echo transliterator_create("Any-Hex/C")->transliterate($str);
Output:
\U0001F603
miken32
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