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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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67 |
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68 | /** |
69 | * Filters the list of file types allowed for editing in the Theme editor. |
70 | * |
71 | * @since 4.4.0 |
72 | * |
73 | * @param array $default_types List of file types. Default types include 'php' and 'css'. |
74 | * @param WP_Theme $theme The current Theme object. |
75 | */ |
76 | $file_types = apply_filters( 'wp_theme_editor_filetypes', $default_types, $theme ); |
77 |
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78 | // Ensure that default types are still there. |
79 | $file_types = array_unique( array_merge( $file_types, $default_types ) ); |
80 |
|
81 | foreach ( $file_types as $type ) { |
82 | switch ( $type ) { |
83 | case 'php': |
84 | $allowed_files += $theme->get_files( 'php', 1 ); |
85 | $has_templates = ! empty( $allowed_files ); |