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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 |
|---|---|
| 377 | if ( is_array( $alloptions ) && isset( $alloptions[$option] ) ) { |
| 378 | unset( $alloptions[$option] ); |
| 379 | wp_cache_set( 'alloptions', $alloptions, 'options' ); |
| 380 | } |
| 381 | } else { |
| 382 | wp_cache_delete( $option, 'options' ); |
| 383 | } |
| 384 | } |
| 385 | if ( $result ) { |
| 386 | do_action( "delete_option_$option", $option ); |
| 387 | do_action( 'deleted_option', $option ); |
| 388 | return true; |
| 389 | } |
| 390 | return false; |
| 391 | } |
| 392 | |
| 393 | /** |
| 394 | * Delete a transient. |
| 395 | * |