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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 |
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1887 | * @param string $type Chosen type of filesystem. |
1888 | * @param bool $error Whether the current request has failed to connect. |
1889 | * Default false. |
1890 | * @param string $context Full path to the directory that is tested for |
1891 | * being writable. |
1892 | * @param bool $allow_relaxed_file_ownership Whether to allow Group/World writable. |
1893 | * Default false. |
1894 | * @param array $extra_fields Extra POST fields. |
1895 | */ |
1896 | $req_cred = apply_filters( 'request_filesystem_credentials', '', $form_post, $type, $error, $context, $extra_fields, $allow_relaxed_file_ownership ); |
1897 | if ( '' !== $req_cred ) { |
1898 | return $req_cred; |
1899 | } |
1900 |
|
1901 | if ( empty( $type ) ) { |
1902 | $type = get_filesystem_method( array(), $context, $allow_relaxed_file_ownership ); |
1903 | } |
1904 |
|
1905 | if ( 'direct' == $type ) { |