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Normalizer::isNormalized

PHP function Edit on GitHub ✎

(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)

Checks if the provided string is already in the specified normalization form

Description

Oop

Normalizer::isNormalized(string $string, int $form = Normalizer::FORM_C): bool

Procedural

normalizer_is_normalized(string $string, int $form = Normalizer::FORM_C): bool

Checks if the provided string is already in the specified normalization form.

Parameters

string

The input string to normalize

form

One of the normalization forms.

Return Values

true if normalized, false otherwise or if there an error

Examples

normalizer_is_normalized() example

php
<?php
$char_A_ring = "\xC3\x85"; // 'LATIN CAPITAL LETTER A WITH RING ABOVE' (U+00C5)
$char_combining_ring_above = "\xCC\x8A";  // 'COMBINING RING ABOVE' (U+030A)
 
$char_orig = 'A' . $char_combining_ring_above;
$char_norm = normalizer_normalize( 'A' . $char_combining_ring_above, Normalizer::FORM_C );
 
echo ( normalizer_is_normalized($char_orig, Normalizer::FORM_C) ) ? "normalized" : "not normalized";
echo '; ';
echo ( normalizer_is_normalized($char_norm, Normalizer::FORM_C) ) ? "normalized" : "not normalized";
?>

OO example

php
<?php
$char_A_ring = "\xC3\x85"; // 'LATIN CAPITAL LETTER A WITH RING ABOVE' (U+00C5)
$char_combining_ring_above = "\xCC\x8A";  // 'COMBINING RING ABOVE' (U+030A)
 
$char_orig = 'A' . $char_combining_ring_above;
$char_norm = Normalizer::normalize( 'A' . $char_combining_ring_above, Normalizer::FORM_C );
 
echo ( Normalizer::isNormalized($char_orig, Normalizer::FORM_C) ) ? "normalized" : "not normalized";
echo '; ';
echo ( Normalizer::isNormalized($char_norm, Normalizer::FORM_C) ) ? "normalized" : "not normalized";
?>

The above example will output:

output
not normalized; normalized

See Also

Source: reference/intl/normalizer/is-normalized.xml · from the official PHP manual (php/doc-en)