| 1 | <?php |
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| 12 | class Wordlift_Simple_Property_Service { |
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| 13 | |||
| 14 | /** |
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| 15 | * The meta key for this property service. |
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| 16 | * |
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| 17 | * @since 3.8.0 |
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| 18 | */ |
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| 19 | const META_KEY = '*'; |
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| 20 | |||
| 21 | /** |
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| 22 | * Get the property value for the specified post id and meta with the specified key. |
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| 23 | * |
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| 24 | * @since 3.8.0 |
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| 25 | * |
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| 26 | * @param int $post_id The post id. |
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| 27 | * @param string $meta_key The meta key. |
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| 28 | * |
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| 29 | * @return mixed|null The property value. |
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| 30 | */ |
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| 31 | public function get( $post_id, $meta_key ) { |
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| 36 | |||
| 37 | } |
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| 38 |
The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.