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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 |
---|---|
2129 | * @return mixed Filtered option value. |
2130 | */ |
2131 | public function capture_filter_pre_get_option( $value ) { |
2132 | $option_name = preg_replace( '/^pre_option_/', '', current_filter() ); |
2133 |
|
2134 | if ( isset( $this->_captured_options[ $option_name ] ) ) { |
2135 | $value = $this->_captured_options[ $option_name ]; |
2136 |
|
2137 | /** This filter is documented in wp-includes/option.php */ |
2138 | $value = apply_filters( 'option_' . $option_name, $value, $option_name ); |
2139 | } |
2140 |
|
2141 | return $value; |
2142 | } |
2143 |
|
2144 | /** |
2145 | * Undoes any changes to the options since options capture began. |
2146 | * |
2147 | * @since 3.9.0 |