我在 wp_mail() 上的附件正在以 .tmp 扩展名发送

Question

我正在构建一个带有上传字段的表单小部件，其中表单数据通过 WordPress REST_API 通过 POST 请求 发送。效果很好，但我无法使用正确的文件名和文件扩展名发送上传文件。目前正在使用临时名称和 .tmp 扩展名发送。

JS Ajax 请求 只是为了举例说明

submitData(form) {

    let formData = new FormData(form[0]);

    jQuery.ajax({
        url: '/wp-json/my-plugin/v1/send_email/',
        type: 'POST',
        data: formData,
        processData: false,
        contentType: false, 
        beforeSend: function () {
            // validate fields
        },
        success: function (response) {
            // success actions
        },
        error: function () {
            // build error messages
        }
    });
    return false;
}

通过REST_API接收的文件数据示例

{
    "form_fields": {
        "name": {
            "file": "beatifull-picture.jpeg"
        },
        "full_path": {
            "file": "beatifull-picture.jpeg"
        },
        "type": {
            "file": "image/jpeg"
        },
        "tmp_name": {
            "file": "C:\\Windows\\Temp\\phpD363.tmp"
        },
        "error": {
            "file": 0
        },
        "size": {
            "file": 364006
        }
    }
}

最后负责将附件添加到 wp_mail()t 的代码：

 protected function send_mail($mail_data, $file){

        // .. 

        $attachment = $this->prepare_attachments($file);

        $email = wp_mail(
            $mail_data['mail_to'],
            $mail_data['mail_subject'],
            $mail_data['mail_message'],
            $mail_data['headers'],
            $attachment,
        );
    }

    // KEY FUNCTION
    protected function prepare_attachments($files) {
        $attachments = [];

        // Iterate through the files array to extract attachments
        if (isset($files['form_fields']['tmp_name']['file'])) {
            $tmp_name = $files['form_fields']['tmp_name']['file'];
            $error = $files['form_fields']['error']['file'];

            if ($error === UPLOAD_ERR_OK) {
                // Log the path of each file
                error_log('Attachment: ' . $tmp_name);
                $attachments[] = $tmp_name;
            }
        }

        return $attachments; 
    }

我尝试过几种方法。已尝试获取文件的原始名称而不是临时名称，但文件未附加；在附加之前尝试上传到 WordPress；尝试存储原始名称和扩展名并在之后替换，但到目前为止没有任何效果。

提前致谢，对于长代码深表歉意

Answer 1

使用 wp_handle_upload() 完成了这项工作。问题是，在发送之前仅获取/使用附件数据而不将文件移动到某个位置是行不通的。始终以临时格式/扩展名发送。

<?php
protected function prepare_attachments($files) {
    $attachments = [];

    // Check if wp_handle_upload is available
    if ( ! function_exists( 'wp_handle_upload' ) ) {
        require_once( ABSPATH . 'wp-admin/includes/file.php' );
    }

    if (isset($files['form_fields']['tmp_name']['file'])) {
        // Populate the file array with the file details
        $file = array(
            'name' => $files['form_fields']['name']['file'],
            'type' => $files['form_fields']['type']['file'],
            'tmp_name' => $files['form_fields']['tmp_name']['file'],
            'error' => $files['form_fields']['error']['file'],
            'size' => $files['form_fields']['size']['file'],
        );

        // Upload the file to the uploads directory
        $upload_result = wp_handle_upload($file, ['test_form' => false]);

        if (!isset($upload_result['error'])) {
            $attachments[] = $upload_result['file'];
            // delete the uploaded file after sending the email
            register_shutdown_function('unlink', $upload_result['file']); 
        } else {
            // Log an error if the file could not be moved
            error_log('Failed to upload file: ' . $upload_result['error']);
        }
    }

    return $attachments;
}