(PHP 8)
PhpToken::getTokenName — Returns the name of the token.
Returns the name of the token.
此函数没有参数。
   An ASCII character for single-char tokens,
   or one of T_* constant names for known tokens (see 解析器代号列表),
   or null for unknown tokens.
  
示例 #1 PhpToken::getTokenName() example
<?php
// known token
$token = new PhpToken(T_ECHO, 'echo');
var_dump($token->getTokenName());   // -> string(6) "T_ECHO"
// single-char token
$token = new PhpToken(ord(';'), ';');
var_dump($token->getTokenName());   // -> string(1) ";"
// unknown token
$token = new PhpToken(10000 , "\0");
var_dump($token->getTokenName());   // -> NULL