PHP 7.1.19 Released

Normalizer::getRawDecomposition

normalizer_get_raw_decomposition

(PHP 7 >= 7.3)

Normalizer::getRawDecomposition -- normalizer_get_raw_decompositionGets the Decomposition_Mapping property for the given UTF-8 encoded code point

Description

Object oriented style

public static string Normalizer::getRawDecomposition ( string $input )

Procedural style

string normalizer_get_raw_decomposition ( string $input )

Gets the Decomposition_Mapping property, as specified in the Unicode Character Database (UCD), for the given UTF-8 encoded code point.

Parameters

input

The input string, which should be a single, UTF-8 encoded, code point.

Return Values

Returns a string containing the Decomposition_Mapping property, if present in the UCD.

Returns NULL if there is no Decomposition_Mapping property for the character.

Examples

Example #1 Normalizer::getRawDecomposition() example

<?php

$result 
"";
$strings = [
    
"a",
    
"\u{FFDA}",
    
"\u{FDFA}",
    
"",
    
"aa",
    
"\xF5",
];

foreach (
$strings as $string) {
    
$decomposition Normalizer::getRawDecomposition($string);
    
// $decomposition = normalizer_get_raw_decomposition($string); Procedural way

    
$error_code intl_get_error_code();
    
$error_message intl_get_error_message();

    
$string_hex bin2hex($string);
    
$result .= "---------------------\n";

    if (
$decomposition === null) {
        
$result .= "'$string_hex' has no decomposition mapping\n" ;
    } else {
        
$result .= "'$string_hex' has the decomposition mapping '" bin2hex($decomposition) . "'\n" ;
    }

    
$result .= "error info: '$error_message' ($error_code)\n";
}

echo 
$result;
?>

The above example will output:

---------------------
'61' has no decomposition mapping
error info: 'U_ZERO_ERROR' (0)
---------------------
'efbf9a' has the decomposition mapping 'e385a1'
error info: 'U_ZERO_ERROR' (0)
---------------------
'efb7ba' has the decomposition mapping 'd8b5d984d98920d8a7d984d984d98720d8b9d984d98ad98720d988d8b3d984d985'
error info: 'U_ZERO_ERROR' (0)
---------------------
'' has no decomposition mapping
error info: 'Input string must be exactly one UTF-8 encoded code point long.: U_ILLEGAL_ARGUMENT_ERROR' (1)
---------------------
'6161' has no decomposition mapping
error info: 'Input string must be exactly one UTF-8 encoded code point long.: U_ILLEGAL_ARGUMENT_ERROR' (1)
---------------------
'f5' has no decomposition mapping
error info: 'Code point out of range: U_ILLEGAL_ARGUMENT_ERROR' (1)

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