IntlChar::isUUppercase

(PHP 7)

IntlChar::isUUppercase — Check if code point has the Uppercase Unicode property

说明

public static bool IntlChar::isUUppercase ( mixed $codepoint )

Check if a code point has the Uppercase Unicode property.

This is the same as IntlChar::hasBinaryProperty($codepoint, IntlChar::PROPERTY_UPPERCASE)

Note:

This is different than IntlChar::isupper() and will return TRUE for more characters.

参数

codepoint: The integer codepoint value (e.g. 0x2603 for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g. "\u{2603}")

返回值

Returns TRUE if codepoint has the Uppercase Unicode property, FALSE if not.

范例

Example #1 Testing different code points

  <?php
var_dump ( IntlChar :: isUUppercase ( "A" ));
 var_dump ( IntlChar :: isUUppercase ( "a" ));
 var_dump ( IntlChar :: isUUppercase ( "Φ" ));
 var_dump ( IntlChar :: isUUppercase ( "φ" ));
 var_dump ( IntlChar :: isUUppercase ( "1" ));
 ?>

以上例程会输出：

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

参见

IntlChar::isupper() - Check if code point has the general category "Lu" (uppercase letter)
IntlChar::hasBinaryProperty() - Check a binary Unicode property for a code point
IntlChar::PROPERTY_UPPERCASE