# PsySH

[![Package version](http://img.shields.io/packagist/v/psy/psysh.svg?style=flat-square)](https://packagist.org/packages/psy/psysh)
[![Build status](http://img.shields.io/travis/bobthecow/psysh/master.svg?style=flat-square)](http://travis-ci.org/bobthecow/psysh)
[![Made out of awesome](http://img.shields.io/badge/made_out_of_awesome-✓-brightgreen.svg?style=flat-square)](http://psysh.org)

## About

PsySH is a runtime developer console, interactive debugger and [REPL](http://en.wikipedia.org/wiki/Read%E2%80%93eval%E2%80%93print_loop) for PHP. Learn more at [psysh.org](http://psysh.org/). Check out the [Interactive Debugging in PHP talk from OSCON](https://presentate.com/bobthecow/talks/php-for-pirates) on Presentate.


## Installation

PsySH [is available via Composer](https://packagist.org/packages/psy/psysh), so you can use it in your project, or install it globally like this:

```
composer g require psy/psysh:@stable
```

If this is your first time installing something globally with Composer, [make sure you have your path set up correctly](http://getcomposer.org/doc/03-cli.md#global).

Or you can use by checking out the the repository directly:

```
git clone https://github.com/bobthecow/psysh.git
cd psysh
./bin/psysh
```

But by far the easiest way to use it is to download the precompiled phar:

```
wget psysh.org/psysh
chmod +x psysh
./psysh
```


## PsySH configuration

While PsySH strives to detect the right settings automatically, you might want to configure it yourself. Just add a file to `~/.config/psysh/config.php` (or `C:\Users\{USER}\AppData\Roaming\PsySH` on Windows):

```php
<?php

return array(
    // In PHP 5.4+, PsySH will default to your `cli.pager` ini setting. If this
    // is not set, it falls back to `less`. It is recommended that you set up
    // `cli.pager` in your `php.ini` with your preferred output pager.
    // 
    // If you are running PHP 5.3, or if you want to use a different pager only
    // for Psy shell sessions, you can override it here.
    'pager' => 'more',

    // Sets the maximum number of entries the history can contain.
    // If set to zero, the history size is unlimited.
    'historySize' => 0,

    // If set to true, the history will not keep duplicate entries.
    // Newest entries override oldest.
    // This is the equivalent of the HISTCONTROL=erasedups setting in bash.
    'eraseDuplicates' => false,

    // By default, PsySH will use a 'forking' execution loop if pcntl is
    // installed. This is by far the best way to use it, but you can override
    // the default by explicitly enabling or disabling this functionality here.
    'usePcntl' => false,

    // PsySH uses readline if you have it installed, because interactive input
    // is pretty awful without it. But you can explicitly disable it if you hate
    // yourself or something.
    'useReadline' => false,

    // PsySH automatically inserts semicolons at the end of input if a statement
    // is missing one. To disable this, set `requireSemicolons` to true.
    'requireSemicolons' => false,

    // "Default includes" will be included once at the beginning of every PsySH
    // session. This is a good place to add autoloaders for your favorite
    // libraries.
    'defaultIncludes' => array(
        __DIR__.'/include/bootstrap.php',
    ),

    // While PsySH ships with a bunch of great commands, it's possible to add
    // your own for even more awesome. Any Psy command added here will be
    // available in your Psy shell sessions.
    'commands' => array(
        // The `parse` command is a command used in the development of PsySH.
        // Given a string of PHP code, it pretty-prints the
        // [PHP Parser](https://github.com/nikic/PHP-Parser) parse tree. It
        // prolly won't be super useful for most of you, but it's there if you
        // want to play :)
        new \Psy\Command\ParseCommand,
    ),

    // PsySH ships with presenters for scalars, resources, arrays, and objects.
    // But you're not limited to those presenters. You can enable additional
    // presenters (like the included MongoCursorPresenter), or write your own!
    'presenters' => array(
        new \Psy\Presenter\MongoCursorPresenter,
    ),

    // You can disable tab completion if you want to. Not sure why you'd want to.
    'tabCompletion' => false,

    // You can write your own tab completion matchers, too! Here are some that enable
    // tab completion for MongoDB database and collection names:
    'tabCompletionMatchers' => array(
        new \Psy\TabCompletion\Matcher\MongoClientMatcher,
        new \Psy\TabCompletion\Matcher\MongoDatabaseMatcher,
    ),
);
```

## Downloading the manual

The PsySH `doc` command is great for documenting source code, but you'll need a little something extra for PHP core documentation. Download one of the following PHP Manual files and drop it in `~/.local/share/psysh/` (or `C:\Users\{USER}\AppData\Roaming\PsySH` on Windows):

 * **[English](http://psysh.org/manual/en/php_manual.sqlite)**
 * [Brazilian Portuguese](http://psysh.org/manual/pt_BR/php_manual.sqlite)
 * [Chinese (Simplified)](http://psysh.org/manual/zh/php_manual.sqlite)
 * [French](http://psysh.org/manual/fr/php_manual.sqlite)
 * [German](http://psysh.org/manual/de/php_manual.sqlite)
 * [Italian](http://psysh.org/manual/it/php_manual.sqlite)
 * [Japanese](http://psysh.org/manual/ja/php_manual.sqlite)
 * [Polish](http://psysh.org/manual/pl/php_manual.sqlite)
 * [Romanian](http://psysh.org/manual/ro/php_manual.sqlite)
 * [Russian](http://psysh.org/manual/ru/php_manual.sqlite)
 * [Persian](http://psysh.org/manual/fa/php_manual.sqlite)
 * [Spanish](http://psysh.org/manual/es/php_manual.sqlite)
 * [Turkish](http://psysh.org/manual/tr/php_manual.sqlite)