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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 |
|---|---|
| 140 | * If `$action` is 'query_plugins' or 'plugin_information', an object MUST be passed. |
| 141 | * If `$action` is 'hot_tags' or 'hot_categories', an array should be passed. |
| 142 | * |
| 143 | * @since 2.7.0 |
| 144 | * |
| 145 | * @param false|object|array $result The result object or array. Default false. |
| 146 | * @param string $action The type of information being requested from the Plugin Installation API. |
| 147 | * @param object $args Plugin API arguments. |
| 148 | */ |
| 149 | $res = apply_filters( 'plugins_api', false, $action, $args ); |
| 150 | |
| 151 | if ( false === $res ) { |
| 152 | |
| 153 | $url = 'http://api.wordpress.org/plugins/info/1.2/'; |
| 154 | $url = add_query_arg( |
| 155 | array( |
| 156 | 'action' => $action, |
| 157 | 'request' => $args, |
| 158 | ), |