Running phpcs --standard=Drupal,DrupalPractice --extensions=php,module,inc,install,test,profile,theme,css,info,txt,md,yml show the following errors/warnings, which should be fixed when they are not false positives.
FILE: ./filter_term/css/style.css
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FOUND 4 ERRORS AFFECTING 3 LINES
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1 | ERROR | [x] Multiple selectors should each be on a single line
1 | ERROR | [x] Expected 1 space before opening brace of class
| | definition; 0 found
2 | ERROR | [x] Line indented incorrectly; expected 2 spaces, found
| | 4
3 | ERROR | [x] Expected 1 newline at end of file; 0 found
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PHPCBF CAN FIX THE 4 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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FILE: ./filter_term/filter_term.module
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FOUND 1 ERROR AND 1 WARNING AFFECTING 2 LINES
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3 | ERROR | Missing short description in doc comment
12 | WARNING | Doc comment indicates hook_form_alter() but function
| | signature is "filter_term_form_node_form_alter"
| | instead of "filter_term_form_alter". Did you mean
| | hook_form_FORM_ID_alter()?
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FILE: ./filter_term/src/Form/VocabForm.php
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FOUND 7 ERRORS AND 10 WARNINGS AFFECTING 16 LINES
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6 | ERROR | [x] Use statements should be sorted alphabetically.
| | The first wrong one is
| | Drupal\node\Entity\NodeType.
28 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
29 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
30 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
31 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
32 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
34 | WARNING | [ ] Vocabulary::loadMultiple calls should be avoided
| | in classes, use dependency injection instead
57 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
65 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
89 | WARNING | [ ] NodeType::loadMultiple calls should be avoided
| | in classes, use dependency injection instead
105 | ERROR | [x] No space found before comment text; expected "//
| | Users list in drop down" but found "//Users list
| | in drop down"
105 | ERROR | [x] Inline comments must end in full-stops,
| | exclamation marks, question marks, colons, or
| | closing parentheses
106 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
110 | ERROR | [x] TRUE, FALSE and NULL must be uppercase; expected
| | "TRUE" but found "true"
115 | ERROR | [x] Expected 1 space after FOREACH keyword; 0 found
126 | ERROR | [x] TRUE, FALSE and NULL must be uppercase; expected
| | "TRUE" but found "true"
159 | ERROR | [ ] The array declaration extends to column 194 (the
| | limit is 80). The array content should be split
| | up over multiple lines
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PHPCBF CAN FIX THE 6 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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FILE: ./filter_term/src/Controller/DefaultController.php
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FOUND 61 ERRORS AND 12 WARNINGS AFFECTING 44 LINES
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7 | ERROR | [x] Use statements should be sorted alphabetically.
| | The first wrong one is
| | Drupal\Component\Render\FormattableMarkup.
20 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
21 | ERROR | [x] Whitespace found at end of line
22 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
23 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
24 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
25 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
26 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
27 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
28 | ERROR | [x] Expected 1 space after IF keyword; 0 found
29 | WARNING | [ ] User::load calls should be avoided in classes,
| | use dependency injection instead
38 | ERROR | [x] Whitespace found at end of line
42 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
46 | ERROR | [x] Expected 1 space between comma and "'type'"; 0
| | found
46 | ERROR | [x] Expected one space after the comma, 0 found
46 | ERROR | [x] Expected 1 space between comma and "'title'"; 0
| | found
46 | ERROR | [x] Expected one space after the comma, 0 found
46 | ERROR | [x] Expected 1 space between comma and "'status'"; 0
| | found
46 | ERROR | [x] Expected one space after the comma, 0 found
52 | ERROR | [x] Expected 1 space after IF keyword; 0 found
55 | ERROR | [x] Expected 1 space after IF keyword; 0 found
60 | ERROR | [x] Line indented incorrectly; expected 8 spaces,
| | found 6
60 | ERROR | [x] Object operator not indented correctly; expected
| | 8 spaces but found 6
63 | ERROR | [x] Line indented incorrectly; expected 8 spaces,
| | found 6
63 | ERROR | [x] Object operator not indented correctly; expected
| | 8 spaces but found 6
64 | ERROR | [x] Line indented incorrectly; expected 6 spaces,
| | found 7
69 | ERROR | [x] Expected 1 space after ELSEIF keyword; 0 found
70 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
73 | ERROR | [x] Expected 1 space between comma and "'type'"; 0
| | found
73 | ERROR | [x] Expected one space after the comma, 0 found
73 | ERROR | [x] Expected 1 space between comma and "'title'"; 0
| | found
73 | ERROR | [x] Expected one space after the comma, 0 found
73 | ERROR | [x] Expected 1 space between comma and "'status'"; 0
| | found
73 | ERROR | [x] Expected one space after the comma, 0 found
80 | ERROR | [x] Expected 1 space after IF keyword; 0 found
83 | ERROR | [x] Expected 1 space after IF keyword; 0 found
84 | ERROR | [x] Line indented incorrectly; expected 8 spaces,
| | found 10
87 | ERROR | [x] Line indented incorrectly; expected 8 spaces,
| | found 6
87 | ERROR | [x] Object operator not indented correctly; expected
| | 8 spaces but found 6
90 | ERROR | [x] Object operator not indented correctly; expected
| | 8 spaces but found 12
91 | ERROR | [x] Whitespace found at end of line
93 | ERROR | [x] Expected 1 space after ELSE keyword; 0 found
94 | WARNING | [ ] \Drupal calls should be avoided in classes, use
| | dependency injection instead
96 | ERROR | [x] Expected 1 space between comma and "'type'"; 0
| | found
96 | ERROR | [x] Expected one space after the comma, 0 found
96 | ERROR | [x] Expected 1 space between comma and "'title'"; 0
| | found
96 | ERROR | [x] Expected one space after the comma, 0 found
96 | ERROR | [x] Expected 1 space between comma and "'status'"; 0
| | found
96 | ERROR | [x] Expected one space after the comma, 0 found
101 | ERROR | [x] Expected 1 space after IF keyword; 0 found
104 | ERROR | [x] Expected 1 space after IF keyword; 0 found
108 | ERROR | [x] Line indented incorrectly; expected 8 spaces,
| | found 6
108 | ERROR | [x] Object operator not indented correctly; expected
| | 8 spaces but found 6
111 | ERROR | [x] Line indented incorrectly; expected 8 spaces,
| | found 6
111 | ERROR | [x] Object operator not indented correctly; expected
| | 8 spaces but found 6
112 | ERROR | [x] Line indented incorrectly; expected 6 spaces,
| | found 7
115 | ERROR | [x] Expected 1 space after closing parenthesis;
| | found 0
124 | ERROR | [ ] The array declaration extends to column 122 (the
| | limit is 80). The array content should be split
| | up over multiple lines
126 | ERROR | [x] Concat operator must be surrounded by a single
| | space
126 | ERROR | [x] Concat operator must be surrounded by a single
| | space
126 | ERROR | [x] Concat operator must be surrounded by a single
| | space
126 | ERROR | [x] Concat operator must be surrounded by a single
| | space
126 | ERROR | [x] Concat operator must be surrounded by a single
| | space
126 | ERROR | [x] Concat operator must be surrounded by a single
| | space
128 | ERROR | [x] Concat operator must be surrounded by a single
| | space
128 | ERROR | [x] Concat operator must be surrounded by a single
| | space
128 | ERROR | [x] Concat operator must be surrounded by a single
| | space
128 | ERROR | [x] Concat operator must be surrounded by a single
| | space
129 | ERROR | [x] Expected 1 space before ":"; 0 found
132 | ERROR | [x] Whitespace found at end of line
144 | WARNING | [x] A comma should follow the last multiline array
| | item. Found: 'pager'
148 | ERROR | [x] Expected 1 newline at end of file; 0 found
148 | ERROR | [x] The closing brace for the class must have an
| | empty line before it
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PHPCBF CAN FIX THE 61 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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FILE: ./filter_term/README.md
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FOUND 0 ERRORS AND 3 WARNINGS AFFECTING 3 LINES
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3 | WARNING | Line exceeds 80 characters; contains 85 characters
5 | WARNING | Line exceeds 80 characters; contains 86 characters
27 | WARNING | Line exceeds 80 characters; contains 107 characters
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FILE: ./filter_term/filter_term.routing.yml
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FOUND 1 ERROR AFFECTING 1 LINE
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14 | ERROR | [x] Expected 1 newline at end of file; 0 found
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PHPCBF CAN FIX THE 1 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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Time: 77ms; Memory: 10MB