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27 lines
1.0 KiB
Markdown
27 lines
1.0 KiB
Markdown
# RedundantPropertyInitializationCheck
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Unitialized properties are hard to statically analyze. To prevent mistakes, Psalm will enforce that all properties should be initialized.
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It does that through [PropertyNotSetInConstructor](./PropertyNotSetInConstructor.md) and [MissingConstructor](./MissingConstructor.md).
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Psalm will then assume every property in the codebase is initialized.
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Doing that allows it to report missing initializations as well as this issue.
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This issue is emitted when checking `isset()` on a non-nullable property. Because every property is assumed to be initialized, this check is redundant
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If your project relies on having uninitialized properties, it is advised to suppress this issue, as well as [PropertyNotSetInConstructor](./PropertyNotSetInConstructor.md) and [MissingConstructor](./MissingConstructor.md).
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```php
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<?php
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class A {
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public string $bar;
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public function getBar() : string {
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if (isset($this->bar)) {
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return $this->bar;
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}
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return "hello";
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}
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}
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```
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