我想介紹自己的Wordpress和後,我安裝的主題,走進它做了一些修改,我發現這個電話:WordPress的do_action功能援助
\可溼性粉劑內容\主題\抓-everest \ footer.php
do_action('catcheverest_site_generator');
我就跟蹤到這個功能,我完全失去了:
function do_action($tag, $arg = '') {
global $wp_filter, $wp_actions, $merged_filters, $wp_current_filter;
if (! isset($wp_actions))
$wp_actions = array();
if (! isset($wp_actions[$tag]))
$wp_actions[$tag] = 1;
else
++$wp_actions[$tag];
// Do 'all' actions first
if (isset($wp_filter['all'])) {
$wp_current_filter[] = $tag;
$all_args = func_get_args();
_wp_call_all_hook($all_args);
}
if (!isset($wp_filter[$tag])) {
if (isset($wp_filter['all']))
array_pop($wp_current_filter);
return;
}
if (!isset($wp_filter['all']))
$wp_current_filter[] = $tag;
$args = array();
if (is_array($arg) && 1 == count($arg) && isset($arg[0]) && is_object($arg[0])) // array(&$this)
$args[] =& $arg[0];
else
$args[] = $arg;
for ($a = 2; $a < func_num_args(); $a++)
$args[] = func_get_arg($a);
// Sort
if (!isset($merged_filters[ $tag ])) {
ksort($wp_filter[$tag]);
$merged_filters[ $tag ] = true;
}
reset($wp_filter[ $tag ]);
do {
foreach ((array) current($wp_filter[$tag]) as $the_)
if (!is_null($the_['function']))
call_user_func_array($the_['function'], array_slice($args, 0, (int) $the_['accepted_args']));
} while (next($wp_filter[$tag]) !== false);
array_pop($wp_current_filter);
}
能否描述上述情況下的數據流?
謝謝指導! – Andrew 2013-04-22 18:59:57