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<?php |
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/** |
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* @file |
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* |
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* Options management. |
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*/ |
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namespace QueryPath; |
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/** |
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* Manage default options. |
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* |
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* This class stores the default options for QueryPath. When a new |
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* QueryPath object is constructed, options specified here will be |
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* used. |
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* |
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* <b>Details</b> |
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* This class defines no options of its own. Instead, it provides a |
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* central tool for developers to override options set by QueryPath. |
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* When a QueryPath object is created, it will evaluate options in the |
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* following order: |
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* |
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* - Options passed into qp() have highest priority. |
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* - Options in QueryPath::Options (this class) have the next highest priority. |
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* - If the option is not specified elsewhere, QueryPath will use its own defaults. |
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* |
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* @see qp() |
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* @see QueryPath::Options::set() |
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* @ingroup querypath_util |
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*/ |
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class Options |
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{ |
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/** |
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* This is the static options array. |
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* |
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* Use the {@link set()}, {@link get()}, and {@link merge()} to |
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* modify this array. |
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*/ |
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static $options = []; |
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/** |
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* Set the default options. |
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* |
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* The passed-in array will be used as the default options list. |
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* |
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* @param array $array |
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* An associative array of options. |
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*/ |
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static function set($array) |
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{ |
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self::$options = $array; |
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} |
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/** |
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* Get the default options. |
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* |
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* Get all options currently set as default. |
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* |
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* @return array |
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* An array of options. Note that only explicitly set options are |
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* returned. {@link QueryPath} defines default options which are not |
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* stored in this object. |
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*/ |
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static function get() |
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{ |
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return self::$options; |
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} |
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/** |
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* Merge the provided array with existing options. |
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* |
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* On duplicate keys, the value in $array will overwrite the |
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* value stored in the options. |
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* |
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* @param array $array |
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* Associative array of options to merge into the existing options. |
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*/ |
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static function merge($array) |
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{ |
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self::$options = $array + self::$options; |
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} |
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/** |
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* Returns true of the specified key is already overridden in this object. |
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* |
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* @param string $key |
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* The key to search for. |
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*/ |
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static function has($key) |
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{ |
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return array_key_exists($key, self::$options); |
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} |
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} |
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Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.