Normalizer::isNormalized

normalizer_is_normalized

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

Normalizer::isNormalized -- normalizer_is_normalized — Checks if the provided string is already in the specified normalization form

说明

面向对象风格

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

过程化风格

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

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

参数

string

The input string to normalize

form

One of the normalization forms.

返回值

true if normalized, false otherwise or if there an error

范例

示例 #1 normalizer_is_normalized() example

<?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";
?>

示例 #2 OO example

<?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";
?>

以上例程会输出：

not normalized; normalized

参见