DiverseYouthNightSchool/application/admin/validate/school/classes/ClassesLib.php

<?php

namespace app\admin\validate\school\classes;

use think\Validate;

class ClassesLib extends Validate
{
    /**
     * 验证规则
     */
    protected $rule = [
//        'title' => 'require|length:1,50|alphaNum',
        'title' => 'require|length:1,50',
        // 'alphaNum' 是自定义的规则，用于过滤中文、数字和拼音字符
    ];
    /**
     * 提示消息
     */
    protected $message = [
        'title.require' => '课程名不能为空',
        'title.length'  => '课程名长度必须在1到50之间',
//        'title.alphaNum' =>'课程名只允许中文、数字和拼音字符'
    ];
    /**
     * 验证场景
     */
    protected $scene = [
        'add'  => ["title"],
        'edit' => ["title"],
    ];

    // 自定义验证规则
    protected function alphaNum($value, $rule, $data = [])
    {
        $pattern = '/^[\x{4e00}-\x{9fa5}\d]+$/u'; // 正则表达式，匹配中文和数字
        if (preg_match($pattern, $value)) {
            return true;
        } else {
            return false;
        }
    }
}