__construct(array $tokens, string $expression = '')

Parameters

array	$tokens
string	$expression

string __toString()

Returns a string representation of the token stream.

Return Value

string

next()

Sets the pointer to the next token and returns the old one.

expect(array|int $type, string|null $value = null, string|null $message = null)

Tests a token.

Parameters

array|int	$type	The type to test
string|null	$value	The token value
string|null	$message	The syntax error message

bool isEOF()

Checks if end of stream was reached.

Return Value

bool

string getExpression()

Return Value

string