1.2.414. Empty Loop¶
This rule reports empty loop. An empty loop has no operation in its main block.
Some empty loop may have features: they are calling methods in the condition, which may change the status of a resource.
Empty loop may come from a typo, where a semi colon detach the block from its loop.
<?php
$i = 0;
// sneaky semi-colon behind the while
while($i < 10) ; {
$i++;
}
// another sneaky semicolon
foreach($a as $b) ;
{
$i++;
}
// This skips the first empty lines
$fp = fopen('/path/to/file', 'r');
while(!($row = fgets($fp))) {
}
?>
1.2.414.1. Suggestions¶
Remove the extra semicolon
Fill the loop with a payload
1.2.414.2. Specs¶
Short name |
Structures/EmptyLoop |
Rulesets |
|
Exakat since |
2.5.0 |
PHP Version |
All |
Severity |
Major |
Time To Fix |
Quick (30 mins) |
Precision |
Very high |
Features |
loop |
Available in |