![floor generator cannot assign read only variable floor generator cannot assign read only variable](https://img2020.cnblogs.com/blog/740516/202007/740516-20200708214017881-1838932331.png)
Rationale: These are generated if an array or object is used as an array key. Rationale: These are simple type errors and should be treated as such. Only arrays and Traversables can be unpacked In line with the symmetrical case on objects, the write case is treated more severely here, as it usually implies data loss. The latter was introduced in PHP 7.4 as a notice with express intention to elevate the severity in PHP 8.0. The first two occur in write contexts, the latter in read contexts. Rationale: These diagnostics are generated when trying to use scalars as arrays. Trying to access array offset on value of type %s As such, it is changed into an exception.Ĭannot unset offset in a non-array variable This error condition practically never occurs outside of specially crafted code, and implies data loss if it does. Rationale: This error condition occurs when trying to push to an array for which the PHP_INT_MAX key is already used. Generally, PHP is somewhat lenient with read accesses to “missing” data.Ĭannot add element to the array as the next element is already occupied
![floor generator cannot assign read only variable floor generator cannot assign read only variable](https://glebbahmutov.com/blog/images/typescript/readonly1.jpeg)
JSON in object form), in which case accessing an undefined property may be a less severe issue. However, object properties can also be dynamic (e.g. This is classified as a warning, because it usually indicates a programming error (in modern code, all non-magic properties tend to be known and fixed). Rationale: The first warning is for the same case as above, but for read contexts. Trying to get property '%s' of non-object While auto-vivification is a core part of the language for arrays, the same is not the case for objects, and creating a property on a non-object is almost certainly a programming error rather than an intentional action. If the non-object is “truthy” a warning is generated and the operation is ignored, if it is “falsy” an empty stdClass object is created instead. Rationale: These errors are generated when a property is accessed on a non-object inside a write context. Attempt to increment/decrement property '%s' of non-objectĪttempt to modify property '%s' of non-objectĪttempt to assign property '%s' of non-object