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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 |
|---|---|
| 3240 | * @type string $to The email recipient. An array of emails |
| 3241 | * can be returned, as handled by wp_mail(). |
| 3242 | * @type string $subject Email subject. |
| 3243 | * @type string $body Email message body. |
| 3244 | * @type string $headers Any email headers. Default empty. |
| 3245 | * } |
| 3246 | * @param int $failures The number of failures encountered while upgrading. |
| 3247 | * @param mixed $results The results of all attempted updates. |
| 3248 | */ |
| 3249 | $email = apply_filters( 'automatic_updates_debug_email', $email, $failures, $this->update_results ); |
| 3250 | |
| 3251 | wp_mail( $email['to'], wp_specialchars_decode( $email['subject'] ), $email['body'], $email['headers'] ); |
| 3252 | } |
| 3253 | } |
| 3254 | |