IntlChar::isIDPart()

版本：php7

(PHP 7)

Check if code point is permissible in an identifier

说明

Determines if the specified character is permissible in an identifier.

TRUE for characters with general categories "L"(letters),"Nl"(letter numbers),"Nd"(decimal digits),"Mc" and "Mn"(combining marks),"Pc"(connecting punctuation), and u_isIDIgnorable(c).

This is almost the same as Unicode's ID_Continue(IntlChar::PROPERTY_ID_CONTINUE)except that Unicode recommends to ignore Cf which is less than IntlChar::isIDIgnorable().

参数

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$codepointis the code point may occur in an identifier,FALSE if not.

范例

Testing different code points

以上例程会输出：

bool(true)
bool(false)
bool(false)
bool(false)

参见

• IntlChar::isIDIgnorable() Check if code point is an ignorable character
• IntlChar::isIDStart() Check if code point is permissible as the first character in an identifier
• IntlChar::PROPERTY_ID_CONTINUE

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