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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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235 | foreach ( (array) $wp_registered_widgets[$id]['classname'] as $cn ) { |
236 | if ( is_string($cn) ) |
237 | $classname_ .= '_' . $cn; |
238 | elseif ( is_object($cn) ) |
239 | $classname_ .= '_' . get_class($cn); |
240 | } |
241 | $classname_ = ltrim($classname_, '_'); |
242 | $params[0]['before_widget'] = sprintf($params[0]['before_widget'], $id, $classname_); |
243 |
|
244 | $params = apply_filters( 'dynamic_sidebar_params', $params ); |
245 |
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246 | $callback = $wp_registered_widgets[$id]['callback']; |
247 |
|
248 | if ( is_callable($callback) ) { |
249 | call_user_func_array($callback, $params); |
250 | $did_one = true; |
251 | } |
252 | } |
253 |
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