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This document uses PHP Chinese website manual Release
(PHP 7)
IntlChar::getPropertyValueName — Get the Unicode name for a property value
$property
, int $value
[, int $nameChoice
= IntlChar::LONG_PROPERTY_NAME
] )Returns the Unicode name for a given property value, as given in the Unicode database file PropertyValueAliases.txt.
Note:
Some of the names in PropertyValueAliases.txt can only be retrieved using
IntlChar::PROPERTY_GENERAL_CATEGORY_MASK
, notIntlChar::PROPERTY_GENERAL_CATEGORY
. These include:
- "C" / "Other"
- "L" / "Letter"
- "LC" / "Cased_Letter"
- "M" / "Mark"
- "N" / "Number"
- "P" / "Punctuation"
- "S" / "Symbol"
- "Z" / "Separator"
property
The Unicode property to lookup (see the IntlChar::PROPERTY_* constants).
If out of range, or this method doesn't work with the given value, FALSE
is returned.
value
Selector for a value for the given property. If out of range, FALSE
is returned.
In general, valid values range from 0 up to some maximum. There are a couple exceptions:
IntlChar::PROPERTY_BLOCK
values begin at the non-zero value IntlChar::BLOCK_CODE_BASIC_LATIN
IntlChar::PROPERTY_CANONICAL_COMBINING_CLASS
values are not contiguous and range from 0..240.
nameChoice
Selector for which name to get. If out of range, FALSE
is returned.
All values have a long name. Most have a short name, but some do not. Unicode allows for additional names;
if present these will be returned by adding 1, 2, etc. to IntlChar::LONG_PROPERTY_NAME
.
Returns the name, or FALSE
if either the property
or the nameChoice
is out of range.
If a given nameChoice
returns FALSE
, then all larger values of nameChoice
will return FALSE
, with one exception: if FALSE
is returned for IntlChar::SHORT_PROPERTY_NAME
,
then IntlChar::LONG_PROPERTY_NAME
(and higher) may still return a non- FALSE
value.
Example #1 Testing different properties
<?php
var_dump ( IntlChar :: getPropertyValueName ( IntlChar :: PROPERTY_BLOCK , IntlChar :: BLOCK_CODE_GREEK ));
var_dump ( IntlChar :: getPropertyValueName ( IntlChar :: PROPERTY_BLOCK , IntlChar :: BLOCK_CODE_GREEK , IntlChar :: SHORT_PROPERTY_NAME ));
var_dump ( IntlChar :: getPropertyValueName ( IntlChar :: PROPERTY_BLOCK , IntlChar :: BLOCK_CODE_GREEK , IntlChar :: LONG_PROPERTY_NAME ));
var_dump ( IntlChar :: getPropertyValueName ( IntlChar :: PROPERTY_BLOCK , IntlChar :: BLOCK_CODE_GREEK , IntlChar :: LONG_PROPERTY_NAME + 1 ));
?>
以上例程会输出:
string(16) "Greek_And_Coptic" string(5) "Greek" string(16) "Greek_And_Coptic" bool(false)