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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 |
|---|---|
| 2503 | * @uses apply_filters() for the 'wp_parse_str' filter. |
| 2504 | * |
| 2505 | * @param string $string The string to be parsed. |
| 2506 | * @param array $array Variables will be stored in this array. |
| 2507 | */ |
| 2508 | function wp_parse_str( $string, &$array ) { |
| 2509 | parse_str( $string, $array ); |
| 2510 | if ( get_magic_quotes_gpc() ) |
| 2511 | $array = stripslashes_deep( $array ); |
| 2512 | $array = apply_filters( 'wp_parse_str', $array ); |
| 2513 | } |
| 2514 | |
| 2515 | /** |
| 2516 | * Convert lone less than signs. |
| 2517 | * |
| 2518 | * KSES already converts lone greater than signs. |
| 2519 | * |
| 2520 | * @uses wp_pre_kses_less_than_callback in the callback function. |
| 2521 | * @since 2.3.0 |