1.2.389. Duplicate Literal¶
Report literals that are repeated across the code. The minimum replication is 5, and is configurable with maxDuplicate.
Repeated literals should be considered a prime candidate for constants.
Integer, reals and strings are considered here. Boolean, Null and Arrays are omitted. 0, 1, 2, 10 and the empty string are all omitted, as too common. This list of omitted constants may be configured with the ignoreList parameter : a comma separated list of values.
<?php
// array index are omitted
$x[3] = 'b';
// constanst are omitted
const X = 11;
define('Y', 'string')
// 0, 1, 2, 10 are omitted
$x = 0;
?>
Name |
Default |
Type |
Description |
minDuplicate |
15 |
integer |
Minimal number of duplication before the literal is reported. |
ignoreList |
0,1,2,10 |
array |
Common values that have to be ignored. Comma separated list. |
1.2.389.1. Connex PHP features¶
1.2.389.1.1. Suggestions¶
Create a constant and use it in place of the literal
Create a class constant and use it in place of the literal
1.2.389.1.2. Specs¶
Short name |
Type/DuplicateLiteral |
Rulesets |
|
Exakat since |
1.9.6 |
PHP Version |
All |
Severity |
Minor |
Time To Fix |
Quick (30 mins) |
Precision |
Very high |
Available in |