1 | <?php |
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20 | class Debugger implements DebuggerInterface |
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21 | { |
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22 | /** |
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23 | * @var DebuggerOptions |
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24 | */ |
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25 | private $options; |
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26 | |||
27 | /** |
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28 | * @param array|DebuggerOptions $options |
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29 | */ |
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30 | public function __construct($options = null) |
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51 | |||
52 | /** |
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53 | * @param string $id |
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54 | * @return IBarPanel|null |
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55 | */ |
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56 | public function getBarPanel($id) |
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60 | |||
61 | /** |
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62 | * @param object|IBarPanel $panel |
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63 | * @param string|null $id |
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64 | * @return $this |
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65 | */ |
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66 | public function setBarPanel(IBarPanel $panel, $id = null) |
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71 | |||
72 | /** |
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73 | * {@inheritdoc} |
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74 | */ |
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75 | public function setBarInfo($info, $value = null) |
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85 | |||
86 | /** |
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87 | * {@inheritdoc} |
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88 | */ |
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89 | public function dump($subject, $return = false) |
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93 | |||
94 | /** |
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95 | * {@inheritdoc} |
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96 | */ |
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97 | public function barDump($subject, $title = null, array $options = null) |
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101 | |||
102 | /** |
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103 | * {@inheritdoc} |
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104 | */ |
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105 | public function timer($name = null) |
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109 | } |
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110 |
PHP has two types of connecting operators (logical operators, and boolean operators):
and
&&
or
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The difference between these is the order in which they are executed. In most cases, you would want to use a boolean operator like
&&
, or||
.Let’s take a look at a few examples:
Logical Operators are used for Control-Flow
One case where you explicitly want to use logical operators is for control-flow such as this:
Since
die
introduces problems of its own, f.e. it makes our code hardly testable, and prevents any kind of more sophisticated error handling; you probably do not want to use this in real-world code. Unfortunately, logical operators cannot be combined withthrow
at this point:These limitations lead to logical operators rarely being of use in current PHP code.