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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 |
|---|---|
| 476 | if (function_exists('mb_internal_encoding')) { |
| 477 | if (!@mb_internal_encoding(get_option('blog_charset'))) |
| 478 | mb_internal_encoding('UTF-8'); |
| 479 | } |
| 480 | |
| 481 | |
| 482 | if ( defined('WP_CACHE') && function_exists('wp_cache_postload') ) |
| 483 | wp_cache_postload(); |
| 484 | |
| 485 | do_action('plugins_loaded'); |
| 486 | |
| 487 | $default_constants = array( 'WP_POST_REVISIONS' => true ); |
| 488 | foreach ( $default_constants as $c => $v ) |
| 489 | @define( $c, $v ); // will fail if the constant is already defined |
| 490 | unset($default_constants, $c, $v); |
| 491 | |
| 492 | // If already slashed, strip. |
| 493 | if ( get_magic_quotes_gpc() ) { |
| 494 | $_GET = stripslashes_deep($_GET ); |