(PHP 7, PHP 8)
IntlChar::charType — 获取代码点的通用类别值
返回通用类别类型，它可以是以下常量之一：
IntlChar::CHAR_CATEGORY_UNASSIGNEDIntlChar::CHAR_CATEGORY_GENERAL_OTHER_TYPESIntlChar::CHAR_CATEGORY_UPPERCASE_LETTERIntlChar::CHAR_CATEGORY_LOWERCASE_LETTERIntlChar::CHAR_CATEGORY_TITLECASE_LETTERIntlChar::CHAR_CATEGORY_MODIFIER_LETTERIntlChar::CHAR_CATEGORY_OTHER_LETTERIntlChar::CHAR_CATEGORY_NON_SPACING_MARKIntlChar::CHAR_CATEGORY_ENCLOSING_MARKIntlChar::CHAR_CATEGORY_COMBINING_SPACING_MARKIntlChar::CHAR_CATEGORY_DECIMAL_DIGIT_NUMBERIntlChar::CHAR_CATEGORY_LETTER_NUMBERIntlChar::CHAR_CATEGORY_OTHER_NUMBERIntlChar::CHAR_CATEGORY_SPACE_SEPARATORIntlChar::CHAR_CATEGORY_LINE_SEPARATORIntlChar::CHAR_CATEGORY_PARAGRAPH_SEPARATORIntlChar::CHAR_CATEGORY_CONTROL_CHARIntlChar::CHAR_CATEGORY_FORMAT_CHARIntlChar::CHAR_CATEGORY_PRIVATE_USE_CHARIntlChar::CHAR_CATEGORY_SURROGATEIntlChar::CHAR_CATEGORY_DASH_PUNCTUATIONIntlChar::CHAR_CATEGORY_START_PUNCTUATIONIntlChar::CHAR_CATEGORY_END_PUNCTUATIONIntlChar::CHAR_CATEGORY_CONNECTOR_PUNCTUATIONIntlChar::CHAR_CATEGORY_OTHER_PUNCTUATIONIntlChar::CHAR_CATEGORY_MATH_SYMBOLIntlChar::CHAR_CATEGORY_CURRENCY_SYMBOLIntlChar::CHAR_CATEGORY_MODIFIER_SYMBOLIntlChar::CHAR_CATEGORY_OTHER_SYMBOLIntlChar::CHAR_CATEGORY_INITIAL_PUNCTUATIONIntlChar::CHAR_CATEGORY_FINAL_PUNCTUATIONIntlChar::CHAR_CATEGORY_CHAR_CATEGORY_COUNT示例 #1 测试不同的代码点
<?php
var_dump(IntlChar::charType("A") === IntlChar::CHAR_CATEGORY_UPPERCASE_LETTER);
var_dump(IntlChar::charType(".") === IntlChar::CHAR_CATEGORY_OTHER_PUNCTUATION);
var_dump(IntlChar::charType("\t") === IntlChar::CHAR_CATEGORY_CONTROL_CHAR);
var_dump(IntlChar::charType("\u{2603}") === IntlChar::CHAR_CATEGORY_OTHER_SYMBOL);
var_dump(IntlChar::charType("多个字符") === null);
?>上面的示例将输出
bool(true) bool(true) bool(true) bool(true) bool(true)