PHP realizes automatic updating of web pages.

Foreword Now many friends who have personal homepages or blogs choose to rent virtual hosts, and quite a few virtual hosts support php. If you have a host space that supports php, have you armed your website with php?

Can you ask php to add some content to your web page and update it automatically every once in a while to attract visitors better? Advanced programming knowledge is not needed to realize this function. See the following example? (A) English proverbs

Let's look at a simple application, which allows php programs to randomly extract a line of records from the database and display it on the web page, and then read another proverb that records English and Chinese, which is suitable for display.

Considering that most cheap virtual hosts that place personal homepages don't support MySQL and other databases, we use text-based data files to store data, which is enough for low-traffic websites. Create a text file named english dat with the following contents.

A bad beginning will lead to a bad ending.

Bad bushes are better than empty fields, and better than nothing.

A bad promise is better than a good lawsuit, and the settlement of losses is better than victory.

A bad harmony is a snake in the heart.

Bad habits are like a good cake. It is better to share them than to keep them. Bad habits are like fresh pies. It is better to share them than to keep them.

A broken padlock will attract the lock-picker.

……

Please note that each line is a complete record. Don't break the line in the middle. You cannot have half-width double quotation marks () in the file. Otherwise, the program will parse the error when outputting the data. There is a lot of such content on the Internet. You can search or go to my website musicfly net/english dat to download a data file.

The following is a program to read data. Create a text file named english dat and add the source code, as shown below.