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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.
This hook occurs 2 times in this file.
Line | Code |
---|---|
354 | $from_name = apply_filters( 'wp_mail_from_name', $from_name ); |
355 |
|
356 | try { |
357 | $phpmailer->setFrom( $from_email, $from_name, false ); |
358 | } catch ( phpmailerException $e ) { |
359 | $mail_error_data = compact( 'to', 'subject', 'message', 'headers', 'attachments' ); |
360 | $mail_error_data['phpmailer_exception_code'] = $e->getCode(); |
361 |
|
362 | /** This filter is documented in wp-includes/pluggable.php */ |
363 | do_action( 'wp_mail_failed', new WP_Error( 'wp_mail_failed', $e->getMessage(), $mail_error_data ) ); |
364 |
|
365 | return false; |
366 | } |
367 |
|
368 | // Set mail's subject and body |
369 | $phpmailer->Subject = $subject; |
370 | $phpmailer->Body = $message; |
371 |
|
372 | // Set destination addresses, using appropriate methods for handling addresses |
Line | Code |
493 |
|
494 | /** |
495 | * Fires after a phpmailerException is caught. |
496 | * |
497 | * @since 4.4.0 |
498 | * |
499 | * @param WP_Error $error A WP_Error object with the phpmailerException message, and an array |
500 | * containing the mail recipient, subject, message, headers, and attachments. |
501 | */ |
502 | do_action( 'wp_mail_failed', new WP_Error( 'wp_mail_failed', $e->getMessage(), $mail_error_data ) ); |
503 |
|
504 | return false; |
505 | } |
506 | } |
507 | endif; |
508 |
|
509 | if ( ! function_exists( 'wp_authenticate' ) ) : |
510 | /** |
511 | * Authenticate a user, confirming the login credentials are valid. |