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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 |
|---|---|
| 4521 | $safe_text = htmlspecialchars( $text, ENT_QUOTES, get_option( 'blog_charset' ) ); |
| 4522 | /** |
| 4523 | * Filters a string cleaned and escaped for output in a textarea element. |
| 4524 | * |
| 4525 | * @since 3.1.0 |
| 4526 | * |
| 4527 | * @param string $safe_text The text after it has been escaped. |
| 4528 | * @param string $text The text prior to being escaped. |
| 4529 | */ |
| 4530 | return apply_filters( 'esc_textarea', $safe_text, $text ); |
| 4531 | } |
| 4532 | |
| 4533 | /** |
| 4534 | * Escaping for XML blocks. |
| 4535 | * |
| 4536 | * @since 5.5.0 |
| 4537 | * |
| 4538 | * @param string $text Text to escape. |
| 4539 | * @return string Escaped text. |