Stringable toInteger Method in Laravel

What is Stringable in Laravel?
Stringable is a class that wraps around a string and provides a fluent, chainable API to manipulate it.

Available from: Laravel 10.x and above

use Illuminate\Support\Str;

$string = Str::of('123');

Now, $string is an instance of Illuminate\Support\Stringable, and you can chain methods like:

Str::of(' 123 ')->trim()->toInteger(); // returns 123 as integer

Use with Chainable String Manipulations

$amount = Str::of('$25')->replace('$', '')->trim()->toInteger(); // 25

Real-world Scenario

You're building a Laravel form where users enter their age. The age input comes as a string, and you want to:

• Clean any extra spaces.
• Convert it to an integer before saving or processing it.

Example: Handling User Input for Age

<input type="text" name="age" value="  25  ">

Now in your controller, you handle the input like this:

use Illuminate\Support\Str;

public function store(Request $request)
{
    $rawAge = $request->input('age'); // "  25  "
    $age = Str::of($rawAge)->trim()->toInteger(); // result: 25

    if ($age >= 18) {
        return "Eligible";
    } else {
        return "Not eligible";
    }
}

Why Not Just Use (int) $value?

This can be achieved like this:

$age = (int) trim($request->input('age'));

But using Str::of(...)->trim()->toInteger():

• Keeps your code clean and chainable.
• Great when chaining with other string operations like replace or slug.
• Matches Laravel’s expressive coding style.

🧠 Safe Conversion Practice

Always check if the input is numeric before converting:

$age = Str::of($request->input('age'))->trim();

$ageValue = $age->isNumeric()
    ? $age->toInteger()
    : 0; // or throw validation error

🔁 Bonus: Using intval() with Base Detection

You can use intval($value, base) for more control:

intval('0x1A', 0); // 26 (hex)
intval('0b1010', 0); // 10 (binary)

📦 Real-World Usage Examples

Converting prices or CSV data:

// Parsing a price string
$price = Str::of('$1,299')->replace(['$', ','], '')->toInteger(); // 1299

// From a CSV row
$row = ['name' => 'John', 'age' => '  30 '];
$age = Str::of($row['age'])->trim()->toInteger(); // 30

🎯 Takeaways

• Stringable::toInteger() is great for clean numeric conversion of strings.
• Chain with trim(), replace(), etc. for readable logic.
• Validate or sanitize input before converting to avoid bugs.
• Prefer native casts ((int), intval()) when chaining isn’t needed.
• Use intval($value, base) for hex, binary, octal support.