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本單元呈現所指定路徑中files文件的總數(不包含folders資料夾)
主要參考
https://www.google.com/search?q=php+count+how+many+files+not+folders&sca_esv=3f5da73195ee9f5a&ei=KJuMaInxGuuevr0Py6DayAw&ved=0ahUKEwiJpZfUt-mOAxVrj68BHUuQFskQ4dUDCBA&uact=5&oq=php+count+how+many+files+not+folders&gs_lp=Egxnd3Mtd2l6LXNlcnAiJHBocCBjb3VudCBob3cgbWFueSBmaWxlcyBub3QgZm9sZGVyczIFECEYoAEyBRAhGKABMgUQIRifBTIFECEYnwUyBRAhGJ8FMgUQIRifBUiGL1DeBFjVK3ACeAGQAQCYAVOgAeEHqgECMTW4AQPIAQD4AQGYAhGgAoEIwgIKEAAYsAMY1gQYR8ICBhAAGBYYHsICBRAAGO8FwgIEECEYFcICBxAhGKABGAqYAwCIBgGQBgiSBwIxN6AHuj6yBwIxNbgH_AfCBwQ0LjEzyAcU&sclient=gws-wiz-serp
-->
所指定路徑中files文件的總數(不包含folders資料夾)Number of files in './': 980