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A PHP parser written in PHP
6996db1e3a
Minor performance improvement for parsing, also allows to access attributes with higher granulity in the parser, though this is not currently done. * #n can now be used to access the stack position of a token. $n is the same as $this->semStack[#n]. (Post-translate $n will actually be the stack position.) * $attributeStack is now $this->startAttributeStack and $endAttributes is now $this->endAttributes. * Attributes for a node are now computed inside the individual reduction methods, instead of being passed as a parameter. Accessible through the attributes() macro. |
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| doc | ||
| grammar | ||
| lib | ||
| test | ||
| test_old | ||
| .travis.yml | ||
| CHANGELOG.md | ||
| composer.json | ||
| LICENSE | ||
| phpunit.xml.dist | ||
| README.md | ||
| UPGRADE-1.0.md | ||
PHP Parser
This is a PHP 5.2 to PHP 5.6 parser written in PHP. Its purpose is to simplify static code analysis and manipulation.
Documentation for version 1.x (stable; for running on PHP >= 5.3).
Documentation for version 0.9.x (unsupported; for running on PHP 5.2).
In a Nutshell
The parser turns PHP source code into an abstract syntax tree. For example, if you pass the following code into the parser:
<?php
echo 'Hi', 'World';
hello\world('foo', 'bar' . 'baz');
You'll get a syntax tree looking roughly like this:
array(
0: Stmt_Echo(
exprs: array(
0: Scalar_String(
value: Hi
)
1: Scalar_String(
value: World
)
)
)
1: Expr_FuncCall(
name: Name(
parts: array(
0: hello
1: world
)
)
args: array(
0: Arg(
value: Scalar_String(
value: foo
)
byRef: false
)
1: Arg(
value: Expr_Concat(
left: Scalar_String(
value: bar
)
right: Scalar_String(
value: baz
)
)
byRef: false
)
)
)
)
You can then work with this syntax tree, for example to statically analyze the code (e.g. to find programming errors or security issues).
Additionally, you can convert a syntax tree back to PHP code. This allows you to do code preprocessing (like automatedly porting code to older PHP versions).
Documentation
Component documentation: