Use multibyte substring
Fixes #7661 Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
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@ -2029,7 +2029,7 @@ class CalDavBackend extends AbstractBackend implements SyncSupport, Subscription
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if (!$this->db->supports4ByteText()) {
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$value = preg_replace('/[\x{10000}-\x{10FFFF}]/u', "\xEF\xBF\xBD", $value);
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}
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$value = substr($value, 0, 254);
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$value = mb_substr($value, 0, 254);
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$query->setParameter('name', $property->name);
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$query->setParameter('parameter', null);
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@ -2047,7 +2047,7 @@ class CalDavBackend extends AbstractBackend implements SyncSupport, Subscription
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if ($this->db->supports4ByteText()) {
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$value = preg_replace('/[\x{10000}-\x{10FFFF}]/u', "\xEF\xBF\xBD", $value);
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}
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$value = substr($value, 0, 254);
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$value = mb_substr($value, 0, 254);
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$query->setParameter('name', $property->name);
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$query->setParameter('parameter', substr($key, 0, 254));
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