Intervention/image · error · InvalidArgumentException

Invalid blur level. Must be int<0, max>

Error message

Invalid blur level. Must be int<0, max>

What it means

Error "Invalid blur level. Must be int<0, max>" thrown in Intervention/image.

Source

Thrown at src/Modifiers/BlurModifier.php:18

<?php

declare(strict_types=1);

namespace Intervention\Image\Modifiers;

use Intervention\Image\Drivers\SpecializableModifier;
use Intervention\Image\Exceptions\InvalidArgumentException;

class BlurModifier extends SpecializableModifier
{
    /**
     * @throws InvalidArgumentException
     */
    public function __construct(public int $level)
    {
        if ($this->level < 0) {
            throw new InvalidArgumentException('Invalid blur level. Must be int<0, max>');
        }
    }
}

View on GitHub (pinned to 5598b9e397)

Solutions

1. Pass an integer blur level of 0 or greater to blur()
2. Clamp dynamic values: max(0, (int) $level)
3. Validate user input so floats or negative numbers are rejected before calling

When it happens

Trigger: Thrown at src/Modifiers/BlurModifier.php:18 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Intervention/image@5598b9e397 (2026-08-23). Data as JSON: /api/errors/bb60798f77e3d394. Report an issue: GitHub.