php -a
Interactive shell

php > $a = 'Hello world!';
php > echo $a;
Hello world!
php >

在應(yīng)用程序中將psys添加到一個(gè)很好的是，我們可以檢查實(shí)例化對(duì)象的源代碼。 >

composer g require psy/psysh:~0.1
psysh

>

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

>

./psysh                                                                                                                                             

Psy Shell v0.1.11 (PHP 5.5.8 — cli) by Justin Hileman                                                                                                                                                                              
>>>

>

>>> help

  help      Show a list of commands. Type `help [foo]` for information about [foo].      Aliases: ?
  
  ls        List local, instance or class variables, methods and constants.              Aliases: list, dir
  
  dump      Dump an object or primitive.
  
  doc       Read the documentation for an object, class, constant, method or property.   Aliases: rtfm, man 
  
  show      Show the code for an object, class, constant, method or property.
  
  wtf       Show the backtrace of the most recent exception.                             Aliases: last-exception, wtf?
  
  trace     Show the current call stack.
  
  buffer    Show (or clear) the contents of the code input buffer.                       Aliases: buf
  
  clear     Clear the Psy Shell screen.
  
  history   Show the Psy Shell history.
  
  exit      End the current session and return to caller.                                Aliases: quit, q

>>> help ls

Usage:

ls [--vars] [-c|--constants] [-f|--functions] [-k|--classes] [-I|--interfaces] [-t|--traits] [-p|--properties] [-m|--methods] [-G|--grep="..."] [-i|--insensitive] [-v|--invert] [-g|--globals] [-n|--internal] [-u|--user] [-C|--
category="..."] [-a|--all] [-l|--long] [target]

Aliases: list, dir

Arguments:

 target             A target class or object to list.
 
 
Options:

 --vars             Display variables.
 
 --constants (-c)   Display defined constants.
 
 --functions (-f)   Display defined functions.
 
 --classes (-k)     Display declared classes.
 
 --interfaces (-I)  Display declared interfaces.
 
 --traits (-t)      Display declared traits.
 
 --properties (-p)  Display class or object properties (public properties by default).
 
 --methods (-m)     Display class or object methods (public methods by default).
 
 --grep (-G)        Limit to items matching the given pattern (string or regex).
 
 --insensitive (-i) Case-insensitive search (requires --grep).
 
 --invert (-v)      Inverted search (requires --grep).
 
 --globals (-g)     Include global variables.
 
 --internal (-n)    Limit to internal functions and classes.
 
 --user (-u)        Limit to user-defined constants, functions and classes.
 
 --category (-C)    Limit to constants in a specific category (e.g. "date").
 
 --all (-a)         Include private and protected methods and properties.
 
 --long (-l)        List in long format: includes class names and method signatures.
 
 
 Help:
 
 List variables, constants, classes, interfaces, traits, functions, methods, and properties.
 
 Called without options, this will return a list of variables currently in scope.
 
 If a target object is provided, list properties, constants and methods of that target. If a class, interface or trait name is passed instead, list constants and methods on that class.
 
 e.g. 
 
 >>> ls
 >>> ls $foo
 >>> ls -k --grep mongo -i
 >>> ls -al ReflectionClass
 >>> ls --constants --category date
 >>> ls -l --functions --grep /^array_.*/
 >>>

不幸的是，不支持通過(guò)像Apache這樣的Web服務(wù)器進(jìn)行調(diào)試。但是，我們可以使用PHP的嵌入式服務(wù)器調(diào)試應(yīng)用程序：

開(kāi)發(fā)服務(wù)器現(xiàn)在正在聆聽(tīng)端口8080上的連接，因此，一旦我們通過(guò)此Web服務(wù)器（https：// localhost：8080/decorator.php）請(qǐng)求Decorator.php文件，我們就應(yīng)該看到以下內(nèi)容：

<span>>>> $a = 'hello';
</span><span>=> "hello"
</span><span>>>></span>

>>> function say($a) {
...     echo $a;
... }
=> null
>>> say('hello');
hello
=> null
>>>

作為一個(gè)好的開(kāi)發(fā)人員，您應(yīng)該為代碼編寫(xiě)單元測(cè)試，以證明其正常工作。在項(xiàng)目的文件中，您會(huì)找到測(cè)試文件夾，如果安裝了PHPUNIT，則可以在其內(nèi)部運(yùn)行測(cè)試。

>>> class Foo
... {
...     protected $a;
...
...     public function setA($a) {
...         $this->a = $a;
...     }
...
...     public function getA() {
...         return $this->a;
...     }
... }
=> null
>>> $foo = new Foo();
=> <Foo #000000001dce50dd000000002dda326e> {}
>>> $foo->setA('hello');
=> null
>>> $foo->getA();
=> "hello"
>>>

即使代碼似乎完美地運(yùn)行，測(cè)試也會(huì)失敗。我們可以通過(guò)僅運(yùn)行失敗測(cè)試來(lái)進(jìn)一步檢查：

>>> ls $foo
Class Methods: getA, setA
>>>

>>> ls -la $foo
Class Properties:

  $a   "hello" 
  

Class Methods:

  getA   public function getA()
  setA   public function setA($a)

>那麼，我們?nèi)绾问褂胮sysh檢查發(fā)生了什麼？只需像以前一樣添加shell :: debug（）方法。

{
    "name": "example/psysh",
    "authors": [
        {
            "name": "John Doe",
            "email": "john@doe.tst"
        }
    ],
    "require": {
        "psy/psysh": "~0.1"
    },
    "autoload": {
        "psr-4": {"Acme\": "src/"}
    }
}

我們準(zhǔn)備好搖滾了！

<span><span><?php
</span></span><span><span>chdir(dirname(__DIR__));
</span></span><span>
</span><span><span>require_once('vendor/autoload.php');
</span></span><span>
</span><span><span>use Acme<span>\Patterns\Decorator\SimpleWindow</span>;
</span></span><span><span>use Acme<span>\Patterns\Decorator\DecoratedWindow</span>;
</span></span><span><span>use Acme<span>\Patterns\Decorator\TitledWindow</span>;
</span></span><span>
</span><span><span>echo PHP_EOL . 'Simple Window' . PHP_EOL;
</span></span><span>
</span><span><span>$window = new SimpleWindow();
</span></span><span>
</span><span><span>echo $window->render();
</span></span><span>
</span><span><span>echo PHP_EOL . 'Decorated Simple Window' . PHP_EOL;
</span></span><span>
</span><span><span>$decoratedWindow = new DecoratedWindow($window);
</span></span><span>
</span><span><span>echo $decoratedWindow->render();
</span></span><span>
</span><span><span>echo PHP_EOL . 'Titled Simple Window' . PHP_EOL;
</span></span><span>
</span><span><span>$titledWindow = new TitledWindow($window);
</span></span><span>
</span><span><span>echo $titledWindow->render();</span></span>

php public/decorator.php 

Simple Window
+-------------+
|             |
|             |
|             |
|             |
|             |
+-------------+

Decorated Simple Window
+-------------+
|             |
|             |
|             |
|             |
|             |
+-------------+

Titled Simple Window
+-------------+
|Title        |
+-------------+
|             |
|             |
|             |
|             |
|             |
+-------------+

php -a
Interactive shell

php > $a = 'Hello world!';
php > echo $a;
Hello world!
php >

有錯(cuò)誤。該方法是迴盪值而不是返回值。 即使該應(yīng)用程序似乎可以正常工作，通過(guò)單元測(cè)試和PSYSH，我們發(fā)現(xiàn)了一個(gè)缺陷，現(xiàn)在我們可以修復(fù)它。

結(jié)論

本文並不是要詳盡地展示所有潛在的PSYS所具有的。 您應(yīng)該嘗試其他一些很酷的功能（例如“ doc”）。 僅PSYS可能不是很有用，但是如果與其他工具和您的聰明調(diào)試功能相結(jié)合，則可以證明是寶貴的資產(chǎn)。

進(jìn)行交互式PHP調(diào)試