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Informations about the package php-cast
Type Assumptions & Assertions simplified
Have you ever had to validate user data? Probably you have used something like webmozarts/assert:
The problem is, even though we checked that $id must be an int, it is actually still seen as mixed (see this example for phpstan).
To change this, you need to write / use your own phpstan rule that makes phpstan believe that it will now always be an int.
So if you use your own verification methods, you must also write / use your own phpstan rules.
This package tries to simplify that. To verify that something is an int, you can assume that it must be an int. If it is not, you get null:
With this, $id is of type int|null for phpstan, psalm, phpstorm and so on.
If you want to assert that it is an int, you can do that too by using:
Now $id is of type int or it fails with an AssertionError. A message for the AssertionError can also be optionally set:
You can do that for array values.
int
intify
With intify you get either the int-value or the int-casted scalar value, if any:
unsigned
unsigned will return a non-null value, if the given value is a number that is >= 0.
positive
positive will return a non-null value, if the given value is a number that is > 0.
negative
negative will return a non-null value, if the given value is a number that is < 0.
float
floatify
With floatify you get either the float-value or the float-casted scalar value, if any:
bool
With bool you get the bool-value for true, false, 1, 0, on, off, yes, no or null.
boolify
With boolify you get either the bool-value or the bool-casted scalar value, if any:
string
stringify
With stringify you get either the string-value or the string-casted scalar value, if any:
number
With number you get either the int or float-value or null, if it is neither.
scalar
With scalar you get either the int, float, bool or string-value or null, if it is neither.
array
With collection you can test whether your value is an array:
And with collectionOf you can test whether your value is an array of type T:
If not all values in the array are of type int, you get null. If you just want to filter the non-int values, you can do that by using filter:
But be aware that filter expects an array<int|string, mixed> as input and not mixed!
list
If you want to make sure, that you have a list of values (and not an assoc. array) you can use listOf:
map
If you want to make sure, that you have an assoc. array (and not a list) you can use mapOf:
