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<?php |
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/** |
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* Item is a generic class which helps us bring uniformity to data that we sent. |
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* |
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* @package automattic/jetpack-sync |
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*/ |
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namespace Automattic\Jetpack\Sync; |
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/** |
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* Sync Item class lets us bring uniformity to the Sync Data that we send. |
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*/ |
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class Item { |
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/** |
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* The state of the object, eg `just_published`. |
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* |
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* @var mixed |
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*/ |
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private $state; |
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/** |
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* Item constructor. |
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* |
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* @param string $trigger What caused the Sync Item to be added. |
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*/ |
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public function __construct( $trigger ) { |
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$this->trigger = $trigger; |
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return $this; |
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} |
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/** |
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* Adds the state value. |
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* |
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* @param string $key Key under which we need to store the value under. |
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* @param mixed $value Value of the key that we want to store. |
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*/ |
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public function add_state_value( $key, $value ) { |
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$this->state[ $key ] = $value; |
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} |
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/** |
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* Checks the state value. |
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* |
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* @param string $key Key that to check. |
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* |
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* @return bool Whether the staye key is set. |
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*/ |
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public function has_state( $key ) { |
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return isset( $this->state[ $key ] ); |
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} |
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/** |
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* Checks if the state value for a key is set to true. |
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* |
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* @param string $key Key to check. |
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* |
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* @return bool Whether the value of the key is set and if the value is true. |
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*/ |
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public function is_state_value_true( $key ) { |
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return ( $this->has_state( $key ) && (bool) $this->get_state_value( $key ) ); |
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} |
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/** |
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* Get a specific key value. |
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* |
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* @param string $key Key to retrieve the value for. |
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* |
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* @return mixed|null |
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*/ |
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public function get_state_value( $key ) { |
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if ( $this->has_state( $key ) ) { |
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return $this->state[ $key ]; |
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} |
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return null; |
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} |
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/** |
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* Get the whole state array from Sync Item. |
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* |
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* @return array mixed State of the sync item. |
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*/ |
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public function get_state() { |
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return $this->state; |
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} |
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/** |
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* Remove item from the state array. |
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* |
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* @param string $key Key to unset the value of. |
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*/ |
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public function unset_state( $key ) { |
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if ( $this->has_state( $key ) ) { |
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unset( $this->state[ $key ] ); |
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} |
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} |
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} |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: