laravel_sketch/app/Base/Validation/Phone.php

<?php

namespace App\Base\Validation;

use Illuminate\Contracts\Validation\Rule;

class Phone implements Rule
{
    /**
     * Create a new rule instance.
     *
     * @return void
     */
    public function __construct()
    {
        //
    }

    /**
     * Determine if the validation rule passes.
     *
     * @param string $attribute
     * @param mixed  $value
     * @return bool
     */
    public function passes($attribute, $value)
    {
        if (strlen($value) == 11) {
            $mobileRegex = '/^1[3-9]\d{9}$/';
            if (preg_match($mobileRegex, $value)) {
                return true;
            } else {
                return false;
            }
        }
        return false;
    }

    /**
     * Get the validation error message.
     *
     * @return string
     */
    public function message()
    {
        return ':attribute 必须是手机号';
    }
}