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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 |
---|---|
486 | * @param string|array $query_args Passed to {@link parse_request()} |
487 | */ |
488 | function main($query_args = '') { |
489 | $this->init(); |
490 | $this->parse_request($query_args); |
491 | $this->send_headers(); |
492 | $this->query_posts(); |
493 | $this->handle_404(); |
494 | $this->register_globals(); |
495 | do_action_ref_array('wp', array(&$this)); |
496 | } |
497 |
|
498 | /** |
499 | * PHP4 Constructor - Does nothing. |
500 | * |
501 | * Call main() method when ready to run setup. |
502 | * |
503 | * @since 2.0.0 |
504 | * |