List of Parser Tokens

Various parts of the PHP language are represented internally by types like T_SR. PHP outputs identifiers like this one in parse errors, like "Parse error: unexpected T_SR, expecting ',' or ';' in script.php on line 10."

You're supposed to know what T_SR means. For everybody who doesn't know that, here is a table with those identifiers, PHP-syntax and references to the appropriate places in the manual.

**Tokens**
Token	Syntax	Reference
`T_ABSTRACT`	abstract	Class Abstraction (available since PHP 5.0.0)
`T_AND_EQUAL`	&=	assignment operators
`T_ARRAY`	array()	array(), array syntax
`T_ARRAY_CAST`	(array)	type-casting
`T_AS`	as	foreach
`T_BAD_CHARACTER`		anything below ASCII 32 except \t (0x09), \n (0x0a) and \r (0x0d)
`T_BOOLEAN_AND`	&&	logical operators
`T_BOOLEAN_OR`	\|\|	logical operators
`T_BOOL_CAST`	(bool) or (boolean)	type-casting
`T_BREAK`	break	break
`T_CASE`	case	switch
`T_CATCH`	catch	Exceptions (available since PHP 5.0.0)
`T_CHARACTER`		not used anymore
`T_CLASS`	class	classes and objects
`T_CLASS_C`	__CLASS__	magic constants (available since PHP 4.3.0)
`T_CLONE`	clone	classes and objects (available since PHP 5.0.0)
`T_CLOSE_TAG`	?> or %>	escaping from HTML
`T_COMMENT`	// or #, and /* */ in PHP 5	comments
`T_CONCAT_EQUAL`	.=	assignment operators
`T_CONST`	const	class constants
`T_CONSTANT_ENCAPSED_STRING`	"foo" or 'bar'	string syntax
`T_CONTINUE`	continue	continue
`T_CURLY_OPEN`	{$	complex variable parsed syntax
`T_DEC`	--	incrementing/decrementing operators
`T_DECLARE`	declare	declare
`T_DEFAULT`	default	switch
`T_DIR`	__DIR__	magic constants (available since PHP 5.3.0)
`T_DIV_EQUAL`	/=	assignment operators
`T_DNUMBER`	0.12, etc	floating point numbers
`T_DOC_COMMENT`	/** */	PHPDoc style comments (available since PHP 5.0.0)
`T_DO`	do	do..while
`T_DOLLAR_OPEN_CURLY_BRACES`	${	complex variable parsed syntax
`T_DOUBLE_ARROW`	=>	array syntax
`T_DOUBLE_CAST`	(real), (double) or (float)	type-casting
`T_DOUBLE_COLON`	::	see `T_PAAMAYIM_NEKUDOTAYIM` below
`T_ECHO`	echo	echo()
`T_ELSE`	else	else
`T_ELSEIF`	elseif	elseif
`T_EMPTY`	empty	empty()
`T_ENCAPSED_AND_WHITESPACE`	" $a"	constant part of string with variables
`T_ENDDECLARE`	enddeclare	declare, alternative syntax
`T_ENDFOR`	endfor	for, alternative syntax
`T_ENDFOREACH`	endforeach	foreach, alternative syntax
`T_ENDIF`	endif	if, alternative syntax
`T_ENDSWITCH`	endswitch	switch, alternative syntax
`T_ENDWHILE`	endwhile	while, alternative syntax
`T_END_HEREDOC`		heredoc syntax
`T_EVAL`	eval()	eval()
`T_EXIT`	exit or die	exit(), die()
`T_EXTENDS`	extends	extends, classes and objects
`T_FILE`	__FILE__	magic constants
`T_FINAL`	final	Final Keyword (available since PHP 5.0.0)
`T_FOR`	for	for
`T_FOREACH`	foreach	foreach
`T_FUNCTION`	function or cfunction	functions
`T_FUNC_C`	__FUNCTION__	magic constants (available since PHP 4.3.0)
`T_GLOBAL`	global	variable scope
`T_GOTO`	goto	(available since PHP 5.3.0)
`T_HALT_COMPILER`	__halt_compiler()	__halt_compiler (available since PHP 5.1.0)
`T_IF`	if	if
`T_IMPLEMENTS`	implements	Object Interfaces (available since PHP 5.0.0)
`T_INC`	++	incrementing/decrementing operators
`T_INCLUDE`	include()	include()
`T_INCLUDE_ONCE`	include_once()	include_once()
`T_INLINE_HTML`		text outside PHP
`T_INSTANCEOF`	instanceof	type operators (available since PHP 5.0.0)
`T_INT_CAST`	(int) or (integer)	type-casting
`T_INTERFACE`	interface	Object Interfaces (available since PHP 5.0.0)
`T_ISSET`	isset()	isset()
`T_IS_EQUAL`	==	comparison operators
`T_IS_GREATER_OR_EQUAL`	>=	comparison operators
`T_IS_IDENTICAL`	===	comparison operators
`T_IS_NOT_EQUAL`	!= or <>	comparison operators
`T_IS_NOT_IDENTICAL`	!==	comparison operators
`T_IS_SMALLER_OR_EQUAL`	<=	comparison operators
`T_LINE`	__LINE__	magic constants
`T_LIST`	list()	list()
`T_LNUMBER`	123, 012, 0x1ac, etc	integers
`T_LOGICAL_AND`	and	logical operators
`T_LOGICAL_OR`	or	logical operators
`T_LOGICAL_XOR`	xor	logical operators
`T_METHOD_C`	__METHOD__	magic constants (available since PHP 5.0.0)
`T_MINUS_EQUAL`	-=	assignment operators
`T_ML_COMMENT`	/* and */	comments (PHP 4 only)
`T_MOD_EQUAL`	%=	assignment operators
`T_MUL_EQUAL`	*=	assignment operators
`T_NAMESPACE`	namespace	namespaces (available since PHP 5.3.0)
`T_NS_C`	__NAMESPACE__	namespaces (available since PHP 5.3.0)
`T_NS_SEPARATOR`	\	namespaces (available since PHP 5.3.0)
`T_NEW`	new	classes and objects
`T_NUM_STRING`	"$a[0]"	numeric array index inside string
`T_OBJECT_CAST`	(object)	type-casting
`T_OBJECT_OPERATOR`	->	classes and objects
`T_OLD_FUNCTION`	old_function	(PHP 4 Only)
`T_OPEN_TAG`	<?php, <? or <%	escaping from HTML
`T_OPEN_TAG_WITH_ECHO`	<?= or <%=	escaping from HTML
`T_OR_EQUAL`	\|=	assignment operators
`T_PAAMAYIM_NEKUDOTAYIM`	::	::. Also defined as `T_DOUBLE_COLON`.
`T_PLUS_EQUAL`	+=	assignment operators
`T_PRINT`	print()	print()
`T_PRIVATE`	private	classes and objects (available since PHP 5.0.0)
`T_PUBLIC`	public	classes and objects (available since PHP 5.0.0)
`T_PROTECTED`	protected	classes and objects (available since PHP 5.0.0)
`T_REQUIRE`	require()	require()
`T_REQUIRE_ONCE`	require_once()	require_once()
`T_RETURN`	return	returning values
`T_SL`	<<	bitwise operators
`T_SL_EQUAL`	<<=	assignment operators
`T_SR`	>>	bitwise operators
`T_SR_EQUAL`	>>=	assignment operators
`T_START_HEREDOC`	<<<	heredoc syntax
`T_STATIC`	static	variable scope
`T_STRING`	"$a[a]"	string array index inside string
`T_STRING_CAST`	(string)	type-casting
`T_STRING_VARNAME`	"${a	complex variable parsed syntax
`T_SWITCH`	switch	switch
`T_THROW`	throw	Exceptions (available since PHP 5.0.0)
`T_TRY`	try	Exceptions (available since PHP 5.0.0)
`T_UNSET`	unset()	unset()
`T_UNSET_CAST`	(unset)	type-casting (available since PHP 5.0.0)
`T_USE`	use	namespaces (available since PHP 5.3.0)
`T_VAR`	var	classes and objects
`T_VARIABLE`	$foo	variables
`T_WHILE`	while	while, do..while
`T_WHITESPACE`	\t \r\n
`T_XOR_EQUAL`	^=	assignment operators

See also token_name().

PHP type comparison tables

Userland Naming Guide

Appendices

PHP Manual

User Contributed Notes
List of Parser Tokens

fgm at osinet dot fr
22-Sep-2008 08:08

T_ENCAPSED_AND_WHITESPACED is returned when parsing strings with evaluated content, like "some $value" or this example from the Strings reference page:

                

                <?php
 echo <<<EOT
 My name is "$name". I am printing some $foo->foo.

                Now, I am printing some {$foo->bar[1]}.

                This should print a capital 'A': \x41
 EOT;
 ?>


                This last example is tokenized as:

                T_ECHO

                  echo

                T_WHITESPACE

                  %20 (a space character)

                T_START_HEREDOC

                  <<

                T_ENCAPSED_AND_WHITESPACE

                  My name is "

                T_VARIABLE

                  $name

                T_ENCAPSED_AND_WHITESPACE   

                  ". I am printing some

                T_VARIABLE   

                  $foo

                T_OBJECT_OPERATOR   

                  ->

                T_STRING   

                  foo

                T_ENCAPSED_AND_WHITESPACE   

                  . Now, I am printing some

                T_CURLY_OPEN   

                  {

                T_VARIABLE   

                  $foo

                T_OBJECT_OPERATOR   

                  ->

                T_STRING   

                  bar

                (terminal)

                  [

                T_LNUMBER   

                  1

                (terminal)

                  ]

                (terminal)

                  }

                T_ENCAPSED_AND_WHITESPACE   

                  . This should print a capital 'A': \x41

                T_END_HEREDOC

                  EOT

                (terminal)

                  ;

nathan at unfinitydesign dot com
22-Sep-2008 12:52

T_ENCAPSED_AND_WHITESPACE is whitespace which intersects a group of tokens. For example, an "unexpected T_ENCAPSED_AND_WHITESPACE" error is produced by the following code:

                

                <?php

                $main_output_world = 'snakes!'
 echo('There are' 10 $main_output_world);
 ?>


                Note the missing concatenation operator between the two strings leads to the whitespace error that is so named above. The concatenation operator instructs PHP to ignore the whitespace between the two code tokens (the so named "encapsed" data"), rather than parse it as a token itself.

                

                The correct code would be:

                

                <?php

                $main_output_world = 'snakes!'
 echo('There are' . 10 . $main_output_world);
 ?>


                Note the addition of the concatenation operator between each token.

o_O Tync
04-Aug-2008 03:21

Some tokens are not documented, so here they are:

                all of them are located within non-constant ""-strings:

                

                T_CHARACTER - \r\n\t... . They're presented AS IS and NOT replaced with actual characters

                

                T_ENCAPSED_AND_WHITESPACE - whitespace

                

                T_DOLLAR_OPEN_CURLY_BRACES - ${ (ONLY in non-constant ""-strings)

                

                T_STRING - strings (example: "$a aa")

                

                T_NUM_STRING - numbers (exaple: "$a 0")

                

                still have no idea what T_ENCAPSED_AND_WHITESPACE means... :(