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<?php

acf_register_store('hook-variations');
function acf_add_filter_variations($filter = '', $variations = array(), $index = 0)
{
    acf_get_store('hook-variations')->set($filter, array('type' => 'filter', 'variations' => $variations, 'index' => $index));
    add_filter($filter, '_acf_apply_hook_variations', 10, 10);
}
function acf_add_action_variations($action = '', $variations = array(), $index = 0)
{
    acf_get_store('hook-variations')->set($action, array('type' => 'action', 'variations' => $variations, 'index' => $index));
    add_action($action, '_acf_apply_hook_variations', 10, 10);
}
function _acf_apply_hook_variations()
{
    $filter = current_filter();
    $args = func_get_args();
    $variations = acf_get_store('hook-variations')->get($filter);
    extract($variations);
    $field = $args[$index];
    foreach ($variations as $variation) {
        if (isset($field["_{$variation}"])) {
            $value = $field["_{$variation}"];
        } elseif (isset($field[$variation])) {
            $value = $field[$variation];
        } else {
            continue;
        }
        if ($type === 'filter') {
            $args[0] = apply_filters_ref_array("{$filter}/{$variation}={$value}", $args);
        } else {
            do_action_ref_array("{$filter}/{$variation}={$value}", $args);
        }
    }
    return $args[0];
}
acf_register_store('deprecated-hooks');
function acf_add_deprecated_filter($deprecated, $version, $replacement)
{
    acf_get_store('deprecated-hooks')->append(array('type' => 'filter', 'deprecated' => $deprecated, 'replacement' => $replacement, 'version' => $version));
    add_filter($replacement, '_acf_apply_deprecated_hook', 10, 10);
}
function acf_add_deprecated_action($deprecated, $version, $replacement)
{
    acf_get_store('deprecated-hooks')->append(array('type' => 'action', 'deprecated' => $deprecated, 'replacement' => $replacement, 'version' => $version));
    add_filter($replacement, '_acf_apply_deprecated_hook', 10, 10);
}
function _acf_apply_deprecated_hook()
{
    $hook = current_filter();
    $args = func_get_args();
    $items = acf_get_store('deprecated-hooks')->query(array('replacement' => $hook));
    foreach ($items as $item) {
        extract($item);
        if (has_filter($deprecated)) {
            if ($type === 'filter') {
                $args[0] = apply_filters_ref_array($deprecated, $args);
            } else {
                do_action_ref_array($deprecated, $args);
            }
        }
    }
    return $args[0];
}