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# Appendix Q. 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.

Table Q-1. Tokens

Token | Syntax | Reference
--- | --- | ---
T_ABSTRACT | abstract | the Section called Class Abstraction in Chapter 19 (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 | Chapter 20 (available since PHP 5.0.0)
T_CHARACTER |  |
T_CLASS | class | classes and objects
T_CLONE | clone | classes and objects. PHP 5 only.
T_CLOSE_TAG | ?> or %> |
T_COMMENT | // or #, and /* */ on PHP 5 | comments
T_CONCAT_EQUAL | .= | assignment operators
T_CONST | const |
T_CONSTANT_ENCAPSED_STRING | "foo" or 'bar' | string syntax
T_CONTINUE | continue |
T_CURLY_OPEN |  |
T_DEC | -- | incrementing/decrementing operators
T_DECLARE | declare | declare
T_DEFAULT | default | switch
T_DIV_EQUAL | /= | assignment operators
T_DNUMBER | 0.12, etc | floating point numbers
T_DOC_COMMENT | /** */ | PHPDoc style comments (PHP 5 only)
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 |  |
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__ | constants
T_FINAL | final | the Section called Final Keyword in Chapter 19 (available since PHP 5.0.0)
T_FOR | for | for
T_FOREACH | foreach | foreach
T_FUNCTION | function or cfunction | functions
T_GLOBAL | global | variable scope
T_HALT_COMPILER | __halt_compiler() | __halt_compiler (available since PHP 5.1.0)
T_IF | if | if
T_IMPLEMENTS | implements | the Section called Object Interfaces in Chapter 19 (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 |  |
T_INSTANCEOF | instanceof | type operators (PHP5 only)
T_INT_CAST | (int) or (integer) | type-casting
T_INTERFACE | interface | the Section called Object Interfaces in Chapter 19 (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__ | 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_MINUS_EQUAL | -= | assignment operators
T_ML_COMMENT | /* and */ | comments (PHP 4 only)
T_MOD_EQUAL | %= | assignment operators
T_MUL_EQUAL | *= | assignment operators
T_NEW | new | classes and objects
T_NUM_STRING |  |
T_OBJECT_CAST | (object) | type-casting
T_OBJECT_OPERATOR | -> | classes and objects
T_OLD_FUNCTION | old_function | old_function
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. PHP 5 only.
T_PUBLIC | public | classes and objects. PHP 5 only.
T_PROTECTED | protected | classes and objects. PHP 5 only.
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 |  |
T_STRING_CAST | (string) | type-casting
T_STRING_VARNAME |  |
T_SWITCH | switch | switch
T_THROW | throw | Chapter 20 (available since PHP 5.0.0)
T_TRY | try | Chapter 20 (available since PHP 5.0.0)
T_UNSET | unset() | unset()
T_UNSET_CAST | (unset) | (not documented; casts to `NULL`)
T_USE | use | (not implemented)
T_VAR | var | classes and objects
T_VARIABLE | $foo | variables
T_WHILE | while | while, do..while
T_WHITESPACE |  |
T_XOR_EQUAL | ^= | assignment operators
T_FUNC_C | __FUNCTION__ | constants, since PHP 4.3.0
T_CLASS_C | __CLASS__ | constants, since PHP 4.3.0

See also token_name().

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