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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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114 | * filters and actions that can be used to further manipulate the result. |
115 | * |
116 | * @since 2.0.0 |
117 | * |
118 | * @param array|string $extra_query_vars Set the extra query variables. |
119 | */ |
120 | function parse_request($extra_query_vars = '') { |
121 | global $wp_rewrite; |
122 |
|
123 | if ( ! apply_filters( 'do_parse_request', true, $this, $extra_query_vars ) ) |
124 | return; |
125 |
|
126 | $this->query_vars = array(); |
127 | $post_type_query_vars = array(); |
128 |
|
129 | if ( is_array($extra_query_vars) ) |
130 | $this->extra_query_vars = & $extra_query_vars; |
131 | else if (! empty($extra_query_vars)) |
132 | parse_str($extra_query_vars, $this->extra_query_vars); |