For single block checks (block number from 1 to 96) the function should return true if the block is enabled. The function should return null to be called client-side once again – this is a typical case where the website uses caching and checks need to be done client-side (in the browser). $server_side_check is true when the check is done server-side (when the page is created). Alternatively, the array can contain * which means all blocks are enabled and optionally negative block numbers of disabled blocks, for example array ('*', - 5, -10). $block is the block number – it is set to 0 when the call is a client-side check for all blocks – in such a case an array of enabled blocks should be returned. $enabled is the default return value (normally true). When the function returns false the block will not be inserted. This is a place where you can prevent insertion.
This filter hook is called just before the block is to be inserted – all the settings were already checked. Filter Hooks Custom block insertion checksĪi_block_insertion_check ($enabled, $block, $server_side_check) For this purpose Ad Inserter offers additional actions, filters and hooks to extend the plugin functionality. However, in some cases you may need additional filters or actions not available in the plugin. Each block has many settings so you can insert it practically anywhere on any page. Ad Inserter uses WordPress action and filter hooks to insert codes into WordPress pages.
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