使用php创建超过1.5k的文件

So i want to run this script that will create around 1.5k files at once. But Not having so much success and the reason is it is only creating 5-10 files.

The reason being is because the script doesn't run long enough for it to create every file. Since im guessing file generation is async.

How can I do such a thing.

My code is the following.

try {
        $this->tmp_file_name = 'article' . md5(time());
        //-- open file
        $file = fopen($this->tmp_file_name, 'w');
        if (!$file) {
            throw new \ErrorException('Cannot create ' . $this->tmp_file_name . ' file!');
        }

        //-- write file
        $fwrite_result = fwrite($file, json_encode($data));
        if (!$fwrite_result) {
            throw new \ErrorException('Cannot create ' . $this->tmp_file_name . ' file!');
        }

        fclose($file);

        return true;
    } catch (\Exception $ex) {
        return false;
    }

Now this method is called over 1.5k times.