Module shared 

A collection of shared, static, and lazily-initialized TAtomic types.

This module provides canonical, reusable instances for common PHP types. Using these constants avoids repeated allocations for frequently used types.

Constants

ARRAYKEY_ATOMIC

A static TAtomic representing the array-key type (int|string).

BOOL_ATOMIC

A static TAtomic representing the bool type.

CLASS_STRING_ATOMIC

A static TAtomic representing the class-string type.

CLOSED_RESOURCE_ATOMIC

A static TAtomic representing a closed resource.

ENUM_STRING_ATOMIC

A static TAtomic representing the enum-string type.

FALSE_ATOMIC

A static TAtomic representing the literal false type.

FALSY_MIXED_ATOMIC

A static TAtomic representing any “falsy” value (e.g., false, 0, "", []).

FLOAT_ATOMIC

A static TAtomic representing the float type.

INTERFACE_STRING_ATOMIC

A static TAtomic representing the interface-string type.

INT_ATOMIC

A static TAtomic representing the general int type.

INT_FLOAT_ATOMIC_SLICE

A static slice of atomics representing the union type int|float.

INT_STRING_ATOMIC_SLICE

A static slice of atomics representing the union type int|string.

ISSET_FROM_LOOP_MIXED_ATOMIC

A static TAtomic representing a mixed type that originates from an isset() check inside a loop.

LOWERCASE_STRING_ATOMIC

A static TAtomic for a lowercase-string.

MINUS_ONE_INT_ATOMIC

A static TAtomic representing the integer literal -1.

MIXED_ATOMIC

A static TAtomic representing the mixed type.

NEGATIVE_INT_ATOMIC

A static TAtomic representing a negative integer (negative-int or int<min, -1>).

NEVER_ATOMIC

A static TAtomic representing the never type, which indicates an impossible state.

NON_EMPTY_LOWERCASE_STRING_ATOMIC

A static TAtomic for a non-empty-lowercase-string.

NON_EMPTY_STRING_ATOMIC

A static TAtomic for a non-empty-string.

NON_EMPTY_UNSPECIFIED_LITERAL_STRING_ATOMIC

A static TAtomic representing a non-empty literal-string where the value is unknown.

NON_NEGATIVE_INT_ATOMIC

A static TAtomic representing a non-negative integer (non-negative-int or int<0, max>).

NON_NULL_ATOMIC

A static TAtomic representing any value that is not null.

NON_POSITIVE_INT_ATOMIC

A static TAtomic representing a non-positive integer (non-positive-int or int<min, 0>).

NULL_ATOMIC

A static TAtomic representing the null type.

NULL_FLOAT_ATOMIC_SLICE

A static slice of atomics representing the union type null|float.

NULL_INT_ATOMIC_SLICE

A static slice of atomics representing the union type null|int.

NULL_OBJECT_ATOMIC_SLICE

A static slice of atomics representing the union type null|object.

NULL_SCALAR_ATOMIC_SLICE

A static slice of atomics representing the union type null|scalar.

NULL_STRING_ATOMIC_SLICE

A static slice of atomics representing the union type null|string.

NUMERIC_ATOMIC

A static TAtomic representing the numeric type (int|float|numeric-string).

NUMERIC_STRING_ATOMIC

A static TAtomic for a numeric-string.

NUMERIC_TRUTHY_STRING_ATOMIC

A static TAtomic for a numeric-string that is also truthy.

OBJECT_ATOMIC

A static TAtomic representing the general object type.

ONE_INT_ATOMIC

A static TAtomic representing the integer literal 1.

OPEN_RESOURCE_ATOMIC

A static TAtomic representing an open resource.

PLACEHOLDER_ATOMIC

A static TAtomic used as a temporary placeholder during type reconciliation.

POSITIVE_INT_ATOMIC

A static TAtomic representing a positive integer (positive-int or int<1, max>).

RESOURCE_ATOMIC

A static TAtomic representing the resource type.

SCALAR_ATOMIC

A static TAtomic representing the scalar type (int|float|string|bool).

SIGNUM_RESULT_SLICE

A static slice of atomics representing the union type -1|0|1, commonly returned by comparison operations like the spaceship operator (<=>).

STRING_ATOMIC

A static TAtomic for the general string type.

TRAIT_STRING_ATOMIC

A static TAtomic representing the trait-string type.

TRUE_ATOMIC

A static TAtomic representing the literal true type.

TRUTHY_LOWERCASE_STRING_ATOMIC

A static TAtomic for a truthy-lowercase-string.

TRUTHY_MIXED_ATOMIC

A static TAtomic representing any “truthy” value.

TRUTHY_STRING_ATOMIC

A static TAtomic for a truthy-string.

UNSPECIFIED_LITERAL_FLOAT_ATOMIC

A static TAtomic representing the literal-float type (unspecified literal).

UNSPECIFIED_LITERAL_INT_ATOMIC

A static TAtomic representing a literal-int where the value is unknown.

UNSPECIFIED_LITERAL_STRING_ATOMIC

A static TAtomic representing a literal-string where the value is unknown.

VOID_ATOMIC

A static TAtomic representing the void type.

ZERO_INT_ATOMIC

A static TAtomic representing the integer literal 0.

Statics

EMPTY_KEYED_ARRAY_ATOMIC

A lazily-initialized static TAtomic for an empty array (array<never, never>).

EMPTY_STRING_ATOMIC

A static TAtomic representing an empty string literal ("").

MIXED_CALLABLE_ATOMIC

A lazily-initialized static TAtomic for a mixed callable (callable).

MIXED_CLOSURE_ATOMIC

A lazily-initialized static TAtomic for a mixed closure (Closure).

MIXED_ITERABLE_ATOMIC

A lazily-initialized static TAtomic for a mixed iterable (iterable<mixed, mixed>).

MIXED_KEYED_ARRAY_ATOMIC

A lazily-initialized static TAtomic for a mixed array (array<array-key, mixed>).