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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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40 | public function textProvider() { |
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41 | |||
42 | // https://en.wikipedia.org/wiki/Stop_words |
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43 | $provider[] = array( |
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44 | 'en', |
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45 | '2', |
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46 | // |
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47 | 'In computing, stop words are words which are filtered ...', |
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48 | // |
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49 | array( |
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50 | 0 => '_i', |
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51 | 1 => 'in', |
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52 | 2 => 'n_', |
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53 | 3 => '_c', |
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54 | 4 => 'co', |
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55 | 5 => 'om', |
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56 | 6 => 'mp', |
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57 | 7 => 'pu', |
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58 | 8 => 'ut', |
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59 | 9 => 'ti', |
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60 | 10 => 'in', |
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61 | 11 => 'ng', |
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62 | 12 => 'g_', |
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63 | 13 => '_s', |
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64 | 14 => 'st', |
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65 | 15 => 'to', |
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66 | 16 => 'op', |
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67 | 17 => 'p_', |
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68 | 18 => '_w', |
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69 | 19 => 'wo', |
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70 | 20 => 'or', |
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71 | 21 => 'rd', |
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72 | 22 => 'ds', |
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73 | 23 => 's_', |
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74 | 24 => '_a', |
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75 | 25 => 'ar', |
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76 | 26 => 're', |
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77 | 27 => 'e_', |
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78 | 28 => '_w', |
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79 | 29 => 'wo', |
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80 | 30 => 'or', |
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81 | 31 => 'rd', |
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82 | 32 => 'ds', |
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83 | 33 => 's_', |
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84 | 34 => '_w', |
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85 | 35 => 'wh', |
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86 | 36 => 'hi', |
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87 | 37 => 'ic', |
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88 | 38 => 'ch', |
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89 | 39 => 'h_', |
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90 | 40 => '_a', |
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91 | 41 => 'ar', |
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92 | 42 => 're', |
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93 | 43 => 'e_', |
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94 | 44 => '_f', |
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95 | 45 => 'fi', |
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96 | 46 => 'il', |
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97 | 47 => 'lt', |
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98 | 48 => 'te', |
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99 | 49 => 'er', |
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100 | 50 => 're', |
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101 | 51 => 'ed', |
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102 | 52 => 'd_', |
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103 | ) |
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104 | ); |
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105 | |||
106 | return $provider; |
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107 | } |
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108 | |||
110 |
Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArray
is initialized the first time when the foreach loop is entered. You can also see that the value of thebar
key is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.