CakePHP 3.验证上传的文件扩展名 [英] CakePHP 3. Validation of uploaded file extension

问题描述

我正在使用CakePHP3。我具有上载字段，并且只允许上载.pdf和.doc（x）文件。如何将这些属性添加到以下验证器中？

I am using CakePHP 3. I have the upload field and want to permit uploading only .pdf and .doc(x) files. How can I add that properties to the following validator?

$validator
   ->notEmpty('article');

推荐答案

只需在定义的验证中添加扩展规则在 http://api.cakephp.org/3.0/class-Cake中。 Validation.Validation.html

Simply add the extension rule in your validation which is define in http://api.cakephp.org/3.0/class-Cake.Validation.Validation.html

扩展名（string | array $ check，array $ extensions ['gif'，'jpeg'，'png'，'jpg ']

extension( string|array $check , array $extensions ['gif', 'jpeg', 'png', 'jpg'] )

示例：

$validator
            ->allowEmpty('profile_image')
            ->add('profile_image', [
                'validExtension' => [
                    'rule' => ['extension',['png']], // default  ['gif', 'jpeg', 'png', 'jpg']
                    'message' => __('These files extension are allowed: .png')
                ]
    ]);

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