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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 |
---|---|
3436 | $safe_text = htmlspecialchars( $text, ENT_QUOTES, get_option( 'blog_charset' ) ); |
3437 | /** |
3438 | * Filter a string cleaned and escaped for output in a textarea element. |
3439 | * |
3440 | * @since 3.1.0 |
3441 | * |
3442 | * @param string $safe_text The text after it has been escaped. |
3443 | * @param string $text The text prior to being escaped. |
3444 | */ |
3445 | return apply_filters( 'esc_textarea', $safe_text, $text ); |
3446 | } |
3447 |
|
3448 | /** |
3449 | * Escape an HTML tag name. |
3450 | * |
3451 | * @since 2.5.0 |
3452 | * |
3453 | * @param string $tag_name |
3454 | * @return string |