PHP to Swift

Free PHP to Swift Code Converter

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Transform your code from PHP to Swift with our free AI-based code convertion tool. If you like what you see, we also create documentation for your code! We don't ever store your code or any representation of it in our databases, but it will be shared with the LLM of our choice for processing.

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How to convert from PHP to Swift

To convert from PHP to Swift, it's essential to understand the key differences between these two programming languages. PHP (Hypertext Preprocessor) is a server-side scripting language primarily used for web development. Swift, on the other hand, is a powerful and intuitive programming language developed by Apple for iOS, macOS, watchOS, and tvOS applications.

While PHP is dynamically typed and interpreted at runtime, Swift is statically typed and compiled. This fundamental difference means you must pay close attention to variable declaration, data types, and error handling when converting from PHP to Swift.

Converting Variables and Data Types


In PHP, variable declaration is simple and does not require explicit type definition:

$name = "John Doe";
$age = 30;

In Swift, you must explicitly define variable types, and the syntax is slightly different:

var name: String = "John Doe"
var age: Int = 30

Data Types

PHP data types include strings, integers, floats, arrays, objects, and more. In Swift, data types are more strictly defined. Here are common conversions:

  • Strings: PHP strings ($str = "Hello";) convert to Swift's String type (var str: String = "Hello").
  • Integers: PHP integers ($num = 10;) convert to Swift's Int type (var num: Int = 10).
  • Floats: PHP floats ($float = 10.5;) convert to Swift's Double or Float types (var floatNum: Double = 10.5).

Converting Control Structures


PHP uses familiar structures like if-else statements:

if ($age > 18) {
    echo "Adult";
} else {
    echo "Minor";

In Swift, the syntax is slightly different but serves the same purpose:

if age > 18 {
} else {


PHP supports for, foreach, while, and do-while loops:

for ($i = 0; $i < 10; $i++) {
    echo $i;

In Swift, the equivalent for loop looks like this:

for i in 0..<10 {

Working with Functions

Defining Functions

In PHP, a function is defined using the function keyword:

function greet($name) {
    return "Hello, " . $name;

In Swift, you use the func keyword, and need to specify parameter types and return type:

func greet(name: String) -> String {
    return "Hello, \(name)"

Calling Functions

Calling functions is quite similar in both languages. In PHP:

echo greet("John");

In Swift:

print(greet(name: "John"))

Handling Arrays and Dictionaries


In PHP, arrays can be indexed or associative:

$fruits = array("apple", "banana", "cherry");

In Swift, arrays are strongly typed:

var fruits: [String] = ["apple", "banana", "cherry"]


PHP associative arrays are converted to Swift dictionaries:

$person = array("name" => "John", "age" => 30);

In Swift:

var person: [String: Any] = ["name": "John", "age": 30]

Object-Oriented Programming (OOP)

Classes and Objects

PHP classes:

class Car {
    public $color;

    public function __construct($color) {
        $this->color = $color;

    public function getColor() {
        return $this->color;

Swift classes:

class Car {
    var color: String

    init(color: String) {
        self.color = color

    func getColor() -> String {
        return color

Instance creation is fairly similar:

$car = new Car("Red");
echo $car->getColor();

In Swift:

let car = Car(color: "Red")

Error Handling

PHP traditionally uses error handling through functions like try-catch blocks, but it is less structured compared to Swift:

try {
    // code that may throw an exception
} catch (Exception $e) {
    echo 'Caught exception: ',  $e->getMessage(), "\n";

In Swift, error handling is more structured and uses do-catch blocks:

do {
    // code that may throw an error
} catch {
    print("Caught error: \(error)")

Using Libraries and Frameworks

PHP Libraries

PHP has a wealth of libraries, often included via Composer. For instance:

require 'vendor/autoload.php';
use SomeLibrary\SomeClass;

Swift Libraries

In Swift, external libraries are commonly included using CocoaPods or Swift Package Manager:

import SomeLibrary


Converting from PHP to Swift involves understanding the structural and syntactical differences between the two languages. Strong typing, different data handling, and specific syntax changes are critical aspects to consider. With practice, converting PHP code to Swift can become more intuitive and efficient, allowing you to leverage Swift's powerful and modern capabilities for your applications.

By mastering these basics, you will be well-prepared to use a Free PHP to Swift Code Converter tool effectively, speeding up the process and ensuring your code runs smoothly in a Swift environment.

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