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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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348 |
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349 | /** |
350 | * Filters the terms query arguments. |
351 | * |
352 | * @since 3.1.0 |
353 | * |
354 | * @param array $args An array of get_terms() arguments. |
355 | * @param array $taxonomies An array of taxonomies. |
356 | */ |
357 | $args = apply_filters( 'get_terms_args', $args, $taxonomies ); |
358 |
|
359 | // Avoid the query if the queried parent/child_of term has no descendants. |
360 | $child_of = $args['child_of']; |
361 | $parent = $args['parent']; |
362 |
|
363 | if ( $child_of ) { |
364 | $_parent = $child_of; |
365 | } elseif ( $parent ) { |
366 | $_parent = $parent; |