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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 |
|---|---|
| 575 | // @plugin authors: warning: this gets registered again on the init hook |
| 576 | create_initial_taxonomies(); |
| 577 | |
| 578 | // Check for hacks file if the option is enabled |
| 579 | if ( get_option('hack_file') ) { |
| 580 | if ( file_exists(ABSPATH . 'my-hacks.php') ) |
| 581 | require(ABSPATH . 'my-hacks.php'); |
| 582 | } |
| 583 | |
| 584 | $current_plugins = apply_filters( 'active_plugins', get_option( 'active_plugins' ) ); |
| 585 | if ( is_array($current_plugins) && !defined('WP_INSTALLING') ) { |
| 586 | foreach ( $current_plugins as $plugin ) { |
| 587 | // check the $plugin filename |
| 588 | // Validate plugin filename |
| 589 | if ( validate_file($plugin) // $plugin must validate as file |
| 590 | || '.php' != substr($plugin, -4) // $plugin must end with '.php' |
| 591 | || !file_exists(WP_PLUGIN_DIR . '/' . $plugin) // $plugin must exist |
| 592 | ) |
| 593 | continue; |