The token_name() function is an inbuilt function in PHP that is used to retrieve the textual representation of a given token identifier. In PHP, when you write code, it gets parsed into a series of tokens, which are the basic units of code that the interpreter understands. These tokens include keywords, operators, constants, variables, and other elements of the code.
Syntax:
string token_name(int $token)
Parameters: This function accepts only one parameter which is described below.
- $token: An integer representing a token constant.
Return Value: The token_name() function returns the symbolic name of the given token.
Program 1: The following program demonstrates the token_name() function.
PHP
<?php   // Example token constant $token = T_IF;   $tokenName = token_name($token);   echo "Token name for $token: $tokenName";   ?> |
Output
Token name for 322: T_IF
Program 2: The following program demonstrates the token_name() function.
PHP
<?php   // Example token constants $tokens = [T_IF, T_ECHO, T_FOREACH];   foreach ($tokens as $token) {     $tokenName = token_name($token);     echo "Token name for $token: $tokenName\n"; }   ?> |
Output
Token name for 322: T_IF Token name for 324: T_ECHO Token name for 330: T_FOREACH
Reference: https://www.php.net/manual/en/function.token-name.php
