1 | <?php namespace jlourenco\support\Interfaces; |
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7 | class LaravelFallbackInterface implements FallbackInterface |
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8 | { |
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9 | |||
10 | /** |
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11 | * @param $key |
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12 | * @return mixed |
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13 | */ |
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14 | public function fallbackGet($key, $default = null) |
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18 | |||
19 | /** |
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20 | * @param $key |
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21 | * @return bool |
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22 | */ |
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23 | public function fallbackHas($key) |
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32 | |||
33 | } |
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.