Conditions | 10 |
Paths | 14 |
Total Lines | 33 |
Code Lines | 22 |
Lines | 0 |
Ratio | 0 % |
Changes | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
1 | <?php |
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24 | protected function process_output( $output, $value ) { |
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25 | |||
26 | $output = wp_parse_args( $output, array( |
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27 | 'element' => '', |
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28 | 'property' => '', |
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29 | 'media_query' => 'global', |
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30 | 'prefix' => '', |
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31 | 'suffix' => '', |
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32 | ) ); |
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33 | |||
34 | if ( is_array( $value ) ) { |
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35 | foreach ( $value as $key => $sub_value ) { |
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36 | |||
37 | $property = ( empty( $output['property'] ) ) ? $key : $output['property'] . '-' . $key; |
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38 | if ( isset( $output['choice'] ) && $output['property'] ) { |
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39 | if ( $key === $output['choice'] ) { |
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40 | $property = $output['property']; |
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41 | } else { |
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42 | continue; |
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43 | } |
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44 | } |
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45 | if ( false !== strpos( $output['property'], '%%' ) ) { |
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46 | $property = str_replace( '%%', $key, $output['property'] ); |
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47 | } |
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48 | $this->styles[ $output['media_query'] ][ $output['element'] ][ $property ] = $output['prefix'] . $this->process_property_value( $property, $value[ $key ] ) . $output['suffix']; |
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49 | } |
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50 | } elseif ( isset( $output['choice'] ) ) { |
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51 | if ( false !== strpos( $output['property'], '%%' ) ) { |
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52 | $output['property'] = str_replace( '%%', $key, $output['property'] ); |
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53 | } |
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54 | $this->styles[ $output['media_query'] ][ $output['element'] ][ $output['property'] ] = $output['prefix'] . $this->process_property_value( $output['property'], $value ) . $output['suffix']; |
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55 | } |
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56 | } |
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57 | } |
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58 |
This error can happen if you refactor code and forget to move the variable initialization.
Let’s take a look at a simple example:
The above code is perfectly fine. Now imagine that we re-order the statements:
In that case,
$x
would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue.