PHP delete()函数 delete() 函数会删除一个文件,并在成功时返回 true,在失败时返回 false。 语法 void delete ( string file )PHPCopy delete()函数是一个虚拟的手动条目,以满足那些将unlink()或unset()错误放置的人。 示例 <?php echo delete("/PhpProject/sample.txt"); echo "File has been deleted successfully"; ?>PHPCopy 输出 File has been deleted successfullyPHPCopy