(PHP 7)
IntlChar::isUAlphabetic — Check if code point has the Alphabetic Unicode property
Check if a code point has the Alphabetic Unicode property.
   This is the same as IntlChar::hasBinaryProperty($codepoint, IntlChar::PROPERTY_ALPHABETIC)
  
codepointThe integer 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 has the Alphabetic Unicode property, FALSE if not.
  
Example #1 Testing different code points
<?php
var_dump(IntlChar::isUAlphabetic("A"));
var_dump(IntlChar::isUAlphabetic("1"));
var_dump(IntlChar::isUAlphabetic("\u{2603}"));
?>
以上例程会输出:
bool(true) bool(false) bool(false)
IntlChar::PROPERTY_ALPHABETIC