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Informations about the package php7cc

PHP 7 Compatibility Checker(php7cc)

Project status

The project is no longer supported. Please consider using one of the following alternatives:

Introduction

php7cc is a command line tool designed to make migration from PHP 5.3-5.6 to PHP 7 easier. It searches for potentially troublesome statements in existing code and generates reports containing file names, line numbers and short problem descriptions. It does not automatically fix code to work with the new PHP version.

What kind of problems does it detect?

There are 2 types of issues reported by php7cc:

  1. Errors that will definitely cause some kind of trouble (a fatal, a syntax error, a notice, etc.) on PHP 7. These are highlighted in red.
  2. Warnings that may or may not lead to logical errors. For example, statements that are legal in both PHP 5 and PHP 7, but change their behaviour between versions fall into this category. Warnings are highlighted in yellow.

A list of statements that may cause errors or warnings to be reported can be found in the php-src repository.

Although php7cc tries to detect as much problems as accurately as possible, sometimes 100% reliable detection is very hard to achieve. That's why you should also run a comprehensive test suite for the code you are going to migrate.

Prerequisites

To run php7cc, you need php installed, minimum required version is 5.3.3. PHP 7 is supported, but files with syntax errors (for example, invalid numeric literals or invalid UTF-8 codepoint escape sequences) can't be processed. You will only get the warning message about the first syntax error for such files.

You may also need composer to install php7cc.

Installation

Phar package

You can download a phar package for any stable version from the Github releases page.

Composer (globally)

Make sure you have composer installed. Then execute the following command:

It is also recommended to add global Composer binaries directory to your environment variable. The location of this directory depends on the operating system you use (see Composer documentation if you want to know more). The following command should work for some *nix systems:

This makes it possible to run php7cc by entering just the executable name.

Composer (locally, per project)

Make sure you have composer installed. Then execute the following command from your project directory:

Docker image

A docker image is available on Docker Hub (contributed and maintained by ypereirareis).

Usage

Examples in this section assume that you have installed php7cc globally using composer and that you have added it's vendor binaries directory to your . If this is not the case, just substitute with the correct path to the binary of phar package. For local per project installation the executable will be located at .

Getting help

To see the full list of available options, run:

Checking a single file or directory

To check a file or a directory, pass its name as the first argument. Directories are checked recursively.

So, to check a file you could run:

To check a directory:

Specifying file extensions to check

When checking a directory, you can also specify a comma-separated list of file extensions that should be checked. By default, only .php files are processed.

For example, if you want to check .php, .inc and .lib files, you could run:

Excluding file or directories

You can specify a list of absolute or relative paths to exclude from checking. Relative paths are relative to the checked directories.

So, if you want to exclude vendor and test directories, you could run:

In this example, directories , and their contents will not be checked.

Specifying minimum issue level

If you set a minimum issue level, only issues having that or higher severity level will be reported by php7cc. There are 3 issue levels: "info", "warning" and "error". "info" is reserved for future use and is the same as "warning".

Example usage:

Only errors, but not warnings will be shown in this case.

Specifying output format

There are two output format available: plain and json.

output-format command-line option, o in short form, can be used in order to change the output format:

Would output:

Troubleshooting

Maximum function nesting level of 100/250/N reached, aborting!

You should increase maximum function nesting level in your PHP or Xdebug config file like this:

Allowed memory size of N bytes exhausted

You should increase amount of memory available to CLI PHP scripts or disable PHP memory limit. The latter can be done by setting the memory_limit PHP option to -1. This option can be set by editing php.ini or by passing a command-line argument to PHP executable like this:

Other useful links

Contributing

Please read the contributing guidelines.

Credits

The list of contributors is available on the corresponding Github page.


All versions of php7cc with dependencies

PHP Build Version
Package Version
Requires php Version >=5.3.3
symfony/console Version ~2.3 || ~3.0
symfony/finder Version ~2.3 || ~3.0
pimple/pimple Version ~3.0
nikic/php-parser Version ~1.4
bcncommerce/json-stream Version 0.3.0
Composer command for our command line client (download client) This client runs in each environment. You don't need a specific PHP version etc. The first 20 API calls are free. Standard composer command

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