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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 |
---|---|
1556 | * @param string $type Chosen type of filesystem. |
1557 | * @param bool $error Whether the current request has failed to connect. |
1558 | * Default false. |
1559 | * @param string $context Full path to the directory that is tested for |
1560 | * being writable. |
1561 | * @param bool $allow_relaxed_file_ownership Whether to allow Group/World writable. |
1562 | * Default false. |
1563 | * @param array $extra_fields Extra POST fields. |
1564 | */ |
1565 | $req_cred = apply_filters( 'request_filesystem_credentials', '', $form_post, $type, $error, $context, $extra_fields, $allow_relaxed_file_ownership ); |
1566 | if ( '' !== $req_cred ) |
1567 | return $req_cred; |
1568 |
|
1569 | if ( empty($type) ) { |
1570 | $type = get_filesystem_method( array(), $context, $allow_relaxed_file_ownership ); |
1571 | } |
1572 |
|
1573 | if ( 'direct' == $type ) |
1574 | return true; |