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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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245 | * 3. The plugin basename minus the file extension. |
246 | * |
247 | * Together, the three parts form the `$page_hook`. Citing the example above, |
248 | * the hook name used would be 'settings_page_pluginbasename'. |
249 | * |
250 | * @see get_plugin_page_hook() |
251 | * |
252 | * @since 1.5.0 |
253 | */ |
254 | do_action( $page_hook ); |
255 | } else { |
256 | if ( validate_file( $plugin_page ) ) { |
257 | wp_die( __( 'Invalid plugin page.' ) ); |
258 | } |
259 |
|
260 | if ( ! ( file_exists( WP_PLUGIN_DIR . "/$plugin_page" ) && is_file( WP_PLUGIN_DIR . "/$plugin_page" ) ) && ! ( file_exists( WPMU_PLUGIN_DIR . "/$plugin_page" ) && is_file( WPMU_PLUGIN_DIR . "/$plugin_page" ) ) ) { |
261 | /* translators: %s: Admin page generated by a plugin. */ |
262 | wp_die( sprintf( __( 'Cannot load %s.' ), htmlentities( $plugin_page ) ) ); |
263 | } |