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<?php |
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/** |
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* Base class for hooking CMB2 into WordPress. |
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* |
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* @since 2.2.0 |
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* |
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* @category WordPress_Plugin |
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* @package CMB2 |
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* @author WebDevStudios |
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* @license GPL-2.0+ |
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* @link http://webdevstudios.com |
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*/ |
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abstract class CMB2_Hookup_Base { |
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/** |
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* @var CMB2 object |
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* @since 2.0.2 |
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*/ |
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protected $cmb; |
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/** |
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* The object type we are performing the hookup for |
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* |
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* @var string |
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* @since 2.0.9 |
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*/ |
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protected $object_type = 'post'; |
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/** |
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* Constructor |
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* |
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* @since 2.0.0 |
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* @param CMB2 $cmb The CMB2 object to hookup |
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*/ |
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public function __construct( CMB2 $cmb ) { |
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$this->cmb = $cmb; |
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$this->object_type = $this->cmb->mb_object_type(); |
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} |
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abstract public function universal_hooks(); |
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/** |
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* Ensures WordPress hook only gets fired once per object. |
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* |
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* @since 2.0.0 |
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* @param string $action The name of the filter to hook the $hook callback to. |
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* @param callback $hook The callback to be run when the filter is applied. |
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* @param integer $priority Order the functions are executed |
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* @param int $accepted_args The number of arguments the function accepts. |
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*/ |
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public function once( $action, $hook, $priority = 10, $accepted_args = 1 ) { |
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static $hooks_completed = array(); |
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$args = func_get_args(); |
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// Get object hash.. This bypasses issues with serializing closures. |
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if ( is_object( $hook ) ) { |
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$args[1] = spl_object_hash( $args[1] ); |
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} elseif ( is_array( $hook ) && is_object( $hook[0] ) ) { |
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$args[1][0] = spl_object_hash( $hook[0] ); |
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} |
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$key = md5( serialize( $args ) ); |
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if ( ! isset( $hooks_completed[ $key ] ) ) { |
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$hooks_completed[ $key ] = 1; |
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add_filter( $action, $hook, $priority, $accepted_args ); |
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} |
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} |
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} |
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WebDevStudios /
CMB2
You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.