README

Usephul is a PHP library that provides useful classes and functions that extend the standard functionality of PHP.

Functions

Array Functions

• array_interchange() — Interchange the values of two elements of an array.
• array_remap() — Applies a (generator) callback to the elements of a given array, allowing the remapping of its keys in the process.
• array_zip() — Perform a zip operation on multiple arrays.

Filesystem Functions

• filename() — Returns the name component of path without the extension.
• extension() — Returns the extension component of path without the extension.

Generator Functions

• seq() — Sequences a value into a Generator.

Math Functions

• greatest() — Finds the value that is greater than all the other values.
• least() — Finds the value that is less than all the other values.
• rank() — Returns the ordinal rank for a given value.

Variable handling Functions

• is_closed_resource() — Finds whether the given variable is a resource that has been closed.
• is_non_empty_string() — Find whether a variable is a non-empty string.
• is_negative_int() — Find whether a variable is an integer and less than zero.
• is_non_negative_int() — Find whether a variable is an integer and not less than zero.
• is_non_positive_int() — Find whether a variable is an integer and not greater than zero.
• is_non_zero_int() — Find whether a variable is an integer and not zero.
• is_number() — Find whether a variable is a number (either an integer or a float).
• is_positive_int() — Find whether a variable is an integer and greater than zero.
• is_zero() — Finds whether the given number is (sufficiently close to) 0.

Attribute Functions

• applies() — Finds whether an attribute has been applied to a given object, class, interface, or trait.

Trait Functions

• uses() — Checks whether an object or class uses a given trait.

SPL Functions

• class_parents_uses() — Return the traits used by the parent classes of the given class.
• class_parents_traits_uses() — Return the traits used by the parent classes of the given class, recursively.
• class_traits_uses() — Return the traits used by the given class or trait, recursively.

Classes

Filesystem

• PathInfo — Provides information about a file path.

Traits

Enumerations

• EnumDynamicity — Adds dynamicity of case names to PHP Enumerations.