phpcms上传图片

// 示例代码：修改 php.ini 文件
upload_max_filesize = 20M
post_max_size = 20M

// 示例代码：检查并修改权限
chmod('/path/to/upload/directory', 755);

// 示例代码：修改 php.ini 文件
max_execution_time = 300
upload_max_filesize = 20M

// 示例代码：使用 AJAX 分片上传
function uploadFile(file) {
    const chunkSize = 1024 * 1024; // 1MB
    const chunks = Math.ceil(file.size / chunkSize);
    let currentChunk = 0;

    function uploadChunk() {
        const start = currentChunk * chunkSize;
        const end = Math.min(file.size, start + chunkSize);
        const formData = new FormData();
        formData.append('file', file.slice(start, end));
        formData.append('chunk', currentChunk);
        formData.append('chunks', chunks);

        fetch('/upload', {
            method: 'POST',
            body: formData
        }).then(response => {
            if (response.ok) {
                currentChunk++;
                if (currentChunk < chunks) {
                    uploadChunk();
                }
            }
        });
    }

    uploadChunk();
}