| Conditions | 21 | 
| Paths | 21 | 
| Total Lines | 68 | 
| Code Lines | 37 | 
| Lines | 6 | 
| Ratio | 8.82 % | 
| 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 | ||
| 40 | return null; | ||
| 41 | } | ||
| 42 | |||
| 43 | $valueInt = null; | ||
|  | |||
| 44 |         if (is_int($value)) { | ||
| 45 | $valueInt = $value; | ||
| 46 |         } elseif (is_string($value)) { | ||
| 47 | $value = trim($value); | ||
| 48 | |||
| 49 |             if (strlen($value) === 0) { | ||
| 50 |                 throw new Exception('$value string length is zero'); | ||
| 51 | } | ||
| 52 | |||
| 53 | $stringToCheckDigits = $value; | ||
| 54 | |||
| 55 |             if ($value[0] === '-' || $value[0] === '+') { | ||
| 56 | $stringToCheckDigits = substr($value, 1); | ||
| 57 | } | ||
| 58 | |||
| 59 |             if (!ctype_digit($stringToCheckDigits)) { | ||
| 60 | throw new Exception( | ||
| 61 |                     "{$value} does not contain all digits, optionally prepended by a '+' or '-' and optionally " | ||
| 62 | . "surrounded by whitespace" | ||
| 63 | ); | ||
| 64 | } | ||
| 65 | |||
| 66 | $phpIntMin = ~PHP_INT_MAX; | ||
| 67 | |||
| 68 | $casted = (int)$value; | ||
| 69 | |||
| 70 |             if ($casted === PHP_INT_MAX && $value !== (string)PHP_INT_MAX) { | ||
| 71 |                 throw new Exception("{$value} was greater than a max int of " . PHP_INT_MAX); | ||
| 72 | } | ||
| 73 | |||
| 74 |             if ($casted === $phpIntMin && $value !== (string)$phpIntMin) { | ||
| 75 |                 throw new Exception("{$value} was less than a min int of {$phpIntMin}"); | ||
| 76 | } | ||
| 77 | |||
| 78 | $valueInt = $casted; | ||
| 79 |         } else { | ||
| 80 |             throw new Exception('"' . var_export($value, true) . '" $value is not a string'); | ||
| 81 | } | ||
| 82 | |||
| 83 |         if ($minValue !== null && $valueInt < $minValue) { | ||
| 84 |             throw new Exception("{$valueInt} is less than {$minValue}"); | ||
| 85 | } | ||
| 86 | |||
| 87 |         if ($valueInt > $maxValue) { | ||
| 88 |             throw new Exception("{$valueInt} is greater than {$maxValue}"); | ||
| 89 | } | ||
| 90 | |||
| 91 | return $valueInt; | ||
| 92 | } | ||
| 93 | } | ||
| 94 | 
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.