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Switch priority to hooks, which added by external class by re-apply them with decrement priority value
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<?php | |
function switch_priority_to_class_filter( $tag, $class_name = '', $method_name = '', $priority = 10 ) { | |
global $wp_filter; | |
// Check that filter actually exists first | |
if ( ! isset( $wp_filter[ $tag ] ) ) { | |
return false; | |
} | |
/** | |
* If filter config is an object, means we're using WordPress 4.7+ and the config is no longer | |
* a simple array, rather it is an object that implements the ArrayAccess interface. | |
* | |
* To be backwards compatible, we set $callbacks equal to the correct array as a reference (so $wp_filter is updated) | |
* | |
* @see https://make.wordpress.org/core/2016/09/08/wp_hook-next-generation-actions-and-filters/ | |
*/ | |
if ( is_object( $wp_filter[ $tag ] ) && isset( $wp_filter[ $tag ]->callbacks ) ) { | |
// Create $fob object from filter tag, to use below | |
$fob = $wp_filter[ $tag ]; | |
$callbacks = &$wp_filter[ $tag ]->callbacks; | |
} else { | |
$callbacks = &$wp_filter[ $tag ]; | |
} | |
// Exit if there aren't any callbacks for specified priority | |
if ( ! isset( $callbacks[ $priority ] ) || empty( $callbacks[ $priority ] ) ) { | |
return false; | |
} | |
// Loop through each filter for the specified priority, looking for our class & method | |
foreach ( (array) $callbacks[ $priority ] as $filter_id => $filter ) { | |
// Filter should always be an array - array( $this, 'method' ), if not goto next | |
if ( ! isset( $filter['function'] ) || ! is_array( $filter['function'] ) ) { | |
continue; | |
} | |
// If first value in array is not an object, it can't be a class | |
if ( ! is_object( $filter['function'][0] ) ) { | |
continue; | |
} | |
// Method doesn't match the one we're looking for, goto next | |
if ( $filter['function'][1] !== $method_name ) { | |
continue; | |
} | |
// Method matched, now let's check the Class | |
if ( get_class( $filter['function'][0] ) === $class_name ) { | |
// WordPress 4.7+ use core remove_filter() since we found the class object | |
if ( isset( $fob ) ) { | |
// HERE WE GO | |
$fob->remove_filter( $tag, $filter['function'], $priority ); | |
$fob->add_filter($tag, $filter['function'], $priority - 1, $filter['accepted_args']); | |
} else { | |
// Use legacy removal process (pre 4.7) | |
unset( $callbacks[ $priority ][ $filter_id ] ); | |
// and if it was the only filter in that priority, unset that priority | |
if ( empty( $callbacks[ $priority ] ) ) { | |
unset( $callbacks[ $priority ] ); | |
} | |
// and if the only filter for that tag, set the tag to an empty array | |
if ( empty( $callbacks ) ) { | |
$callbacks = array(); | |
} | |
// Remove this filter from merged_filters, which specifies if filters have been sorted | |
unset( $GLOBALS['merged_filters'][ $tag ] ); | |
} | |
return true; | |
} | |
} | |
return false; | |
} |
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