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| Summary: | Ignore some cases of unused variables | ||
|---|---|---|---|
| Product: | php | Reporter: | dharkness <dharkness> |
| Component: | Editor | Assignee: | Tomas Mysik <tmysik> |
| Status: | NEW --- | ||
| Severity: | normal | ||
| Priority: | P3 | ||
| Version: | 8.0 | ||
| Hardware: | All | ||
| OS: | All | ||
| Issue Type: | DEFECT | Exception Reporter: | |
Makes sense, thanks. The first case is especially tricky when iterating over object properties, since
foreach (array_keys($object) as $key) {
echo $key . PHP_EOL;
}
doesn't work (the workaround here is even more bloated), while
foreach ($object as $key => $value) {
echo $key . PHP_EOL;
}
is fine.
Indeed, but I don't think it matters for the fix. Not using the $value in a foreach should never produce a warning IMHO. |
In addition to issue #246230, there are two more cases where I am forced to declare a variable to receive a value that I don't intend to use. I would like NetBeans not to flag these as a warning. While they do have workarounds to avoid the hint, it's not acceptable to complicate the code to satisfy the IDE. 1. Iterating over the keys of an array. // don't need $value foreach ($array as $key => $value) { echo $key . PHP_EOL; } Workaround: Use array_keys() to copy the keys to a new array of values. foreach (array_keys($array) as $key) { echo $key . PHP_EOL; } 2. Ignoring some values extracted using list(). // don't need $id list($id, $author, $title) = explode(',', '123,Charles Lutwidge Dodgson,Alice in Wonderland'); echo "$author is the author of $title\n"; Workaround: Assign the result of explode() to a temporary variable and extract only the values you need. $info = explode(...); $author = $info[1]; $title = $info[2]; echo "$author is the author of $title\n";