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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.
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2185 | * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes. |
2186 | * @return string Admin url link with optional path appended. |
2187 | */ |
2188 | function user_admin_url( $path = '', $scheme = 'admin' ) { |
2189 | $url = network_site_url('wp-admin/user/', $scheme); |
2190 |
|
2191 | if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) |
2192 | $url .= ltrim($path, '/'); |
2193 |
|
2194 | return apply_filters('user_admin_url', $url, $path); |
2195 | } |
2196 |
|
2197 | /** |
2198 | * Retrieve the url to the admin area for either the current blog or the network depending on context. |
2199 | * |
2200 | * @package WordPress |
2201 | * @since 3.1.0 |
2202 | * |
2203 | * @param string $path Optional path relative to the admin url. |