geckon01/Twig
1
0
Fork 0
mirror of https://github.com/twigphp/Twig.git synced 2026-09-07 07:57:01 +00:00
Code Issues Packages Projects Releases Wiki Activity

[Doc] Correct Order & Explanation on precedence

Browse Source
This commit is contained in:
lacpandore
2024-02-29 18:08:57 +01:00
committed by Fabien Potencier
parent b46e93c725
commit 01e0b7ce42
1 changed files with 33 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
doc/templates.rst
+33 -6
View File
@@ -514,13 +514,40 @@ Twig allows expressions everywhere.
.. note::
Twig uses operators to perform various operations within templates. Understanding
the precedence of these operators is crucial for writing correct and efficient Twig templates.
The operator precedence is as follows, with the lowest-precedence operators
listed first: ``?:`` (ternary operator), ``b-and``, ``b-xor``, ``b-or``,
``or``, ``and``, ``==``, ``!=``, ``<=>``, ``<``, ``>``, ``>=``, ``<=``,
``in``, ``matches``, ``starts with``, ``ends with``, ``has every``, ``has
some``, ``..``, ``+``, ``-``,
``~``, ``*``, ``/``, ``//``, ``%``, ``is`` (tests), ``**``, ``??``, ``|``
(filters), ``[]``, and ``.``:
listed first:
============================= =================================== ===================================================
Operator Score of precedence Description
============================= =================================== ===================================================
``?:`` Perfoms a ternary, conditional statement.
``or`` 10 Performs a logical OR operation between two
boolean expressions.
``and`` 15 Performs a logical AND operation between two
boolean expressions.
``b-or`` 16 Performs a bitwise OR operation on integers.
``b-xor`` 17 Performs a bitwise XOR operation on integers.
``b-and`` 18 Performs a bitwise AND operation on integers
``==``, ``!=``, ``<=>``, 20 Comparison Operators: Compare values and check
``<``, ``>``, ``>=``, for containment, pattern matching, etc.
``<=``, ``not in``, ``in``,
``matches``, ``starts with``,
``ends with``, ``has some``,
``has every``
``..`` 25 Creates a range of values, commonly used in loops.
``+``, ``-`` 30 Performs operations on numbers.
``~`` 40 Concatenates strings together.
``*``, ``/``, ``//``, ``%`` 60 Handles arithmetic operations on numbers.
``is``, ``is not`` 100 Tests
``**`` 200 Raises a number to the power of another.
``??`` 300 Handles cases where a variable might be null.
``|``,``[]``,``.`` Filters are evaluated first
============================= =================================== ===================================================
This means that ``{{ 6 b-and 2 or 6 b-and 16 }}`` results in ``(6 & 2) || (6 & 16)``.
.. code-block:: twig