Appendices
PHP Manual

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 "parent" identifiers, e.g. strings, object oriented keywords like parent and self, functions, classes and more are matched.
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; reserved since PHP 4.0.0)
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().


Appendices
PHP Manual