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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 |
|---|---|
| 2400 | * |
| 2401 | * @since 2.8.0 |
| 2402 | * |
| 2403 | * @param string $text |
| 2404 | * @return string |
| 2405 | */ |
| 2406 | function esc_html( $text ) { |
| 2407 | $safe_text = wp_check_invalid_utf8( $text ); |
| 2408 | $safe_text = _wp_specialchars( $safe_text, ENT_QUOTES ); |
| 2409 | return apply_filters( 'esc_html', $safe_text, $text ); |
| 2410 | } |
| 2411 | |
| 2412 | /** |
| 2413 | * Escaping for HTML attributes. |
| 2414 | * |
| 2415 | * @since 2.8.0 |
| 2416 | * |
| 2417 | * @param string $text |
| 2418 | * @return string |