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27 lines
481 B
Markdown
27 lines
481 B
Markdown
# UnusedForeachValue
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Emitted when `--find-dead-code` is turned on and Psalm cannot find any
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references to the foreach value
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```php
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<?php
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/** @param array<string, int> $a */
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function foo(array $a) : void {
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foreach ($a as $key => $value) { // $value is unused
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echo $key;
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}
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}
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```
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Can be suppressed by prefixing the variable name with an underscore or naming
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it `$_`:
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```php
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<?php
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foreach ([1, 2, 3] as $key => $_val) {}
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foreach ([1, 2, 3] as $key => $_) {}
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```
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