PHP - Manual: IntlChar::isJavaIDPart
2024-11-15
(PHP 7, PHP 8)
IntlChar::isJavaIDPart — Check if code point is permissible in a Java identifier
$codepoint
): ?boolDetermines if the specified character is permissible in a Java identifier.
In addition to IntlChar::isIDPart(), true
for characters with general category "Sc" (currency symbols).
codepoint
The int codepoint value (e.g. 0x2603
for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g. "\u{2603}"
)
Returns true
if
codepoint
may occur in a Java identifier, false
if not. Returns null
on failure.
示例 #1 Testing different code points
<?php
var_dump(IntlChar::isJavaIDPart("A"));
var_dump(IntlChar::isJavaIDPart("$"));
var_dump(IntlChar::isJavaIDPart("\n"));
var_dump(IntlChar::isJavaIDPart("\u{2603}"));
?>
以上例程会输出:
bool(true) bool(true) bool(false) bool(false)
官方地址:https://www.php.net/manual/en/intlchar.isjavaidpart.php