IntlChar::isJavaIDPart()
版本:php7
(PHP 7)
Check if code point is permissible in a Java identifier
说明
public static IntlChar::isJavaIDPart(mixed $codepoint): bool
Determines if the specified character is permissible in a Java identifier.
In addition to IntlChar::isIDPart(),TRUE
for characters with general category "Sc"(currency symbols).
参数
- $codepoint
The integer codepoint value(e.g.0x2603forU+2603 SNOWMAN), or the character encoded as a UTF-8 string(e.g."u{2603}")
返回值
Returns TRUE
if$codepointmay occur in a Java identifier,FALSE
if not.
范例
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)
参见
- IntlChar::isIDIgnorable() Check if code point is an ignorable character
- IntlChar::isIDPart() Check if code point is permissible in an identifier
- IntlChar::isJavaIDStart() Check if code point is permissible as the first character in a Java identifier
- IntlChar::isalpha() Check if code point is a letter character
- IntlChar::isdigit() Check if code point is a digit character