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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 |
|---|---|
| 3294 | } |
| 3295 | |
| 3296 | /** |
| 3297 | * Filter the text after it is formatted for the editor. |
| 3298 | * |
| 3299 | * @since 4.3.0 |
| 3300 | * |
| 3301 | * @param string $text The formatted text. |
| 3302 | */ |
| 3303 | return apply_filters( 'format_for_editor', $text, $default_editor ); |
| 3304 | } |
| 3305 | |
| 3306 | /** |
| 3307 | * Perform a deep string replace operation to ensure the values in $search are no longer present |
| 3308 | * |
| 3309 | * Repeats the replacement operation until it no longer replaces anything so as to remove "nested" values |
| 3310 | * e.g. $subject = '%0%0%0DDD', $search ='%0D', $result ='' rather than the '%0%0DD' that |
| 3311 | * str_replace would return |
| 3312 | * |