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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 |
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22 | str_replace( '/', '-', $block_name ) |
23 | ); |
24 |
|
25 | /** |
26 | * Filters the default block className for server rendered blocks. |
27 | * |
28 | * @param string $class_name The current applied classname. |
29 | * @param string $block_name The block name. |
30 | */ |
31 | $classname = apply_filters( 'block_default_classname', $classname, $block_name ); |
32 |
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33 | return $classname; |
34 | } |
35 |
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36 | /** |
37 | * Add the generated classnames to the output. |
38 | * |
39 | * @access private |
40 | * |