## Why is this an issue?

The `elseif` keyword is preferred over the `else if` keywords in PHP due to its consistency with other programming languages.

`elseif` is a single token, making it more efficient for the PHP parser to process. Additionally, using `elseif` encourages developers to follow a unified coding style and maintain a consistent syntax throughout their PHP codebase.

Overall, the use of `elseif` improves code clarity, reduces potential errors, and enhances the overall maintainability of PHP projects.

### Noncompliant code example

    if ($expr1) {
      ...
    } else if ($expr2) {
      ...
    } else {...}

### Compliant solution

    if ($expr1) {
      ...
    } elseif ($expr2) {
      ...
    } else {...}

## Resources

### Documentation

- PHP Manual - elseif/else if