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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 |
---|---|
4101 | /** |
4102 | * Filters the text after it is formatted for the editor. |
4103 | * |
4104 | * @since 4.3.0 |
4105 | * |
4106 | * @param string $text The formatted text. |
4107 | * @param string $default_editor The default editor for the current user. |
4108 | * It is usually either 'html' or 'tinymce'. |
4109 | */ |
4110 | return apply_filters( 'format_for_editor', $text, $default_editor ); |
4111 | } |
4112 |
|
4113 | /** |
4114 | * Perform a deep string replace operation to ensure the values in $search are no longer present |
4115 | * |
4116 | * Repeats the replacement operation until it no longer replaces anything so as to remove "nested" values |
4117 | * e.g. $subject = '%0%0%0DDD', $search ='%0D', $result ='' rather than the '%0%0DD' that |
4118 | * str_replace would return |
4119 | * |