(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)
Normalization is a process that involves transforming characters and sequences of characters into a formally-defined underlying representation. This process is most important when text needs to be compared for sorting and searching, but it is also used when storing text to ensure that the text is stored in a consistent representation.
The Unicode Consortium has defined a number of normalization forms reflecting the various needs of applications:
The following constants define the normalization form used by the normalizer:
Normalizer::FORM_C
Normalizer::FORM_D
Normalizer::NFD
Normalizer::FORM_KC
Normalizer::NFKC
Normalizer::FORM_KC_CF
Normalizer::FORM_KD
Normalizer::NFKD
Normalizer::NFC
Normalizer::NFKC_CF
Version | Description |
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8.0.0 |
Normalizer::NONE has been removed.
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