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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 |
|---|---|
| 4395 | $safe_text = htmlspecialchars( $text, ENT_QUOTES, get_option( 'blog_charset' ) ); |
| 4396 | /** |
| 4397 | * Filters a string cleaned and escaped for output in a textarea element. |
| 4398 | * |
| 4399 | * @since 3.1.0 |
| 4400 | * |
| 4401 | * @param string $safe_text The text after it has been escaped. |
| 4402 | * @param string $text The text prior to being escaped. |
| 4403 | */ |
| 4404 | return apply_filters( 'esc_textarea', $safe_text, $text ); |
| 4405 | } |
| 4406 | |
| 4407 | /** |
| 4408 | * Escape an HTML tag name. |
| 4409 | * |
| 4410 | * @since 2.5.0 |
| 4411 | * |
| 4412 | * @param string $tag_name |
| 4413 | * @return string |