List of Parser Tokens

Inhoudsopgave

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.

Note: Usage of T_* constants

All tokens listed below are also defined as PHP constants. Their value is automatically generated based on PHP's underlying parser infrastructure. This means that the concrete value of a token may change between two PHP versions. For example the T_FILE constant is 365 in PHP 5.3, while the same value refers now to T_TRAIT in PHP 5.4 and the value of T_FILE is 369. This means that your code should never rely directly on the original T_* values taken from PHP version X.Y.Z, to provide some compatibility across multiple PHP versions. Instead your code should utilize custom values (using big numbers like 10000) and an appropriate strategy that will work with both PHP versions and T_* values.

**Tokens**
Token	Syntax	Reference
`T_ABSTRACT`	abstract	Class Abstraction
`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_CALLABLE`	callable	callable
`T_CASE`	case	switch
`T_CATCH`	catch	Exceptions
`T_CHARACTER`		not used anymore
`T_CLASS`	class	classes and objects
`T_CLASS_C`	__CLASS__	magic constants
`T_CLONE`	clone	classes and objects
`T_CLOSE_TAG`	?> or %>	escaping from HTML
`T_COALESCE`	??	comparison operators (available since PHP 7.0.0)
`T_COMMENT`	// or #, and /* */	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
`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_ELLIPSIS`	...	function arguments (available since PHP 5.6.0)
`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
`T_FINALLY`	finally	Exceptions (available since PHP 5.5.0)
`T_FOR`	for	for
`T_FOREACH`	foreach	foreach
`T_FUNCTION`	function or cfunction	functions
`T_FUNC_C`	__FUNCTION__	magic constants
`T_GLOBAL`	global	variable scope
`T_GOTO`	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
`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
`T_INSTEADOF`	insteadof	Traits (available since PHP 5.4.0)
`T_INT_CAST`	(int) or (integer)	type-casting
`T_INTERFACE`	interface	Object Interfaces
`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_SPACESHIP`	<=>	comparison operators (available since PHP 7.0.0)
`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
`T_MINUS_EQUAL`	-=	assignment operators
`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_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_POW`	**	arithmetic operators (available since PHP 5.6.0)
`T_POW_EQUAL`	**=	assignment operators (available since PHP 5.6.0)
`T_PRINT`	print()	print
`T_PRIVATE`	private	classes and objects
`T_PUBLIC`	public	classes and objects
`T_PROTECTED`	protected	classes and objects
`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`	parent, self, etc.	identifiers, e.g. keywords like parent and self, function names, class names and more are matched. See also `T_CONSTANT_ENCAPSED_STRING`.
`T_STRING_CAST`	(string)	type-casting
`T_STRING_VARNAME`	"${a	complex variable parsed syntax
`T_SWITCH`	switch	switch
`T_THROW`	throw	Exceptions
`T_TRAIT`	trait	Traits (available since PHP 5.4.0)
`T_TRAIT_C`	__TRAIT__	__TRAIT__ (available since PHP 5.4.0)
`T_TRY`	try	Exceptions
`T_UNSET`	unset()	unset()
`T_UNSET_CAST`	(unset)	type-casting
`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
`T_YIELD`	yield	generators (available since PHP 5.5.0)
`T_YIELD_FROM`	yield from	generators (available since PHP 7.0.0)

Referenties

Manuel PHP : http://php.net

Deze verwijzingen en links verwijzen naar documenten die geraadpleegd zijn tijdens het schrijven van deze pagina, of die aanvullende informatie kunnen geven, maar de auteurs van deze bronnen kunnen niet verantwoordelijk worden gehouden voor de inhoud van deze pagina.
De auteur Deze site is als enige verantwoordelijk voor de manier waarop de verschillende concepten, en de vrijheden die met de referentiewerken worden genomen, hier worden gepresenteerd. Vergeet niet dat u meerdere broninformatie moet doorgeven om het risico op fouten te verkleinen.

Inhoudsopgave Haut