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[PHP] Use mb_detect_encoding when available (#3952) 

I've faced an issue where I want to serialize UTF-8 emojis and FlatBufferBuilder::is_utf8 would return false on them.
I was not able to add the corresponding hexadecimal code because I don't understand how the whole thing works but what i've done is using the `mb_detect_encoding` function which handles correctly all supposed UTF-8 characters.
This commit is contained in:
Antoine Descamps 2016-11-16 18:54:57 +01:00 committed by Wouter van Oortmerssen
parent c05803bf96
commit dbecdf209d
1 changed files with 4 additions and 0 deletions
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4
php/FlatbufferBuilder.php
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@ -593,6 +593,10 @@ class FlatbufferBuilder
protected function is_utf8($bytes) protected function is_utf8($bytes)
{ {
if (function_exists('mb_detect_encoding')) {
return (bool) mb_detect_encoding($bytes, 'UTF-8', true);
}
$len = strlen($bytes); $len = strlen($bytes);
if ($len < 1) { if ($len < 1) {
/* NOTE: always return 1 when passed string is null */ /* NOTE: always return 1 when passed string is null */