New and updated in 4.6.0
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functionwp_is_ini_value_changeable()
Determines whether a PHP ini value is changeable at runtime.
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functionget_current_network_id()
Retrieves the current network ID.
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function_load_textdomain_just_in_time()
Loads plugin and theme text domains just-in-time.
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Filters out `register_meta()` args based on an allowed list.
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function_prime_term_caches()
Adds any terms from the given IDs to the cache that do not already exist in cache.
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functionwp_resource_hints()
Prints resource hints to browsers for pre-fetching, pre-rendering and pre-connecting to web sites.
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functionwp_dependencies_unique_hosts()
Retrieves a list of unique hosts of all enqueued scripts and styles.
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functionclean_network_cache()
Removes a network from the object cache.
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functionupdate_network_cache()
Updates the network cache of given networks.
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function_prime_network_caches()
Adds any networks from the given IDs to the cache that do not already exist in cache.
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functionget_networks()
Retrieves a list of networks.
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functionget_network()
Retrieves network data given a network ID or network object.
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functionupdate_site_cache()
Updates sites in cache.
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functionget_sites()
Retrieves a list of sites matching requested arguments.
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functionget_site()
Retrieves site data given a site ID or site object.
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function_prime_site_caches()
Adds any sites from the given IDs to the cache that do not already exist in cache.
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functionwp_image_matches_ratio()
Helper function to test if aspect ratios for two images match.
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Localizes the jQuery UI datepicker.
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functionget_the_post_thumbnail_caption()
Returns the post thumbnail caption.
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functionthe_post_thumbnail_caption()
Displays the post thumbnail caption.
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functionwp_raise_memory_limit()
Attempts to raise the PHP memory limit for memory intensive processes.
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function_deprecated_hook()
Marks a deprecated action or filter hook as deprecated and throws a notice.
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functionwp_check_jsonp_callback()
Checks that a JSONP callback is a valid JavaScript callback name.
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functionwp_get_ext_types()
Retrieves the list of common file extensions and their types.
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Identifies the network and site of a requested domain and path and populates the corresponding network and site global objects as part of the multisite bootstrap process.
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Filters post thumbnail lookup to set the post thumbnail.