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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 |
|---|---|
| 4591 | $safe_text = htmlspecialchars( $text, ENT_QUOTES, get_option( 'blog_charset' ) ); |
| 4592 | /** |
| 4593 | * Filters a string cleaned and escaped for output in a textarea element. |
| 4594 | * |
| 4595 | * @since 3.1.0 |
| 4596 | * |
| 4597 | * @param string $safe_text The text after it has been escaped. |
| 4598 | * @param string $text The text prior to being escaped. |
| 4599 | */ |
| 4600 | return apply_filters( 'esc_textarea', $safe_text, $text ); |
| 4601 | } |
| 4602 | |
| 4603 | /** |
| 4604 | * Escaping for XML blocks. |
| 4605 | * |
| 4606 | * @since 5.5.0 |
| 4607 | * |
| 4608 | * @param string $text Text to escape. |
| 4609 | * @return string Escaped text. |