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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 |
|---|---|
| 523 | /** |
| 524 | * Filters whether to send a debugging email for each automatic background update. |
| 525 | * |
| 526 | * @since 3.7.0 |
| 527 | * |
| 528 | * @param bool $development_version By default, emails are sent if the |
| 529 | * install is a development version. |
| 530 | * Return false to avoid the email. |
| 531 | */ |
| 532 | if ( apply_filters( 'automatic_updates_send_debug_email', $development_version ) ) { |
| 533 | $this->send_debug_email(); |
| 534 | } |
| 535 | |
| 536 | if ( ! empty( $this->update_results['core'] ) ) { |
| 537 | $this->after_core_update( $this->update_results['core'][0] ); |
| 538 | } elseif ( ! empty( $this->update_results['plugin'] ) || ! empty( $this->update_results['theme'] ) ) { |
| 539 | $this->after_plugin_theme_update( $this->update_results ); |
| 540 | } |
| 541 | |