PHP paging code example and its use in ZF
for above The loop will output something like Page 1, Page 2, Page 3, Page 4, Page 5, Page 6, Page 7, Page 8, Page 9, Page 10, Page 11, Page 12, Page 13 Page What if we only want to display ten pages at a time? For example, pages 1-10, pages 11-20 Just modify the for loop slightly:
For example, if the current page $pageNow is between 1~10, then $step=0 If the current page $pageNow is between 11 and 20, then $step=10 If the current page $pageNow is between 21 and 30, then $step=20 Referring to the code of the specific implementation process, it is not difficult to find that the second condition of the for loop only needs to add 10 to achieve the situation of only displaying 10 each time. We will package this step in the getLink in the fenyePage class. () method Then again, how can we get the values of the $pageSize and $rowCount variables? $pageSize can be specified by the programmer himself, and $rowCount can be obtained with the help of a simple function that executes sql statements.
Since the task of operating the database in zf is completed by the model layer, I placed the function to obtain the value of $rowCount in the corresponding table model For example: I operate the order table Then when I want to display all order information, I get the value of $rowCount through the showorder() method in the order class, and pay it to the $rowCount attribute in the paging class. Similarly, the data information to be displayed on the page is also paid to the $res_arr attribute in the paging class. In this way, we can easily instantiate a paging class (fenyePage), and then pass it to the showorder() function through parameters, and the function will complete the following actions: ①Information to be displayed on the page ②How many records are there in the table?
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