MySQL表上次更新时如何显示PHP页面？

问题描述：

I have a MySQL db, table with data that loads from a source every 2 - 4 hours, I am currently typing when the table was last updated. Currently it is updated with load data local infile replace into mytable so the data loads automatically with cron, I just want to display below the html table when the data was last updated.

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I have tried update_time and information.schema, but doesn't display anything it just displays blank in the area I would like it to appear.

Here is a query I have tried which seems simplest, and preferable, but only displays BLANK white page.

<?php 
    $connection = mysql_connect('host', 'user', 'password'); 
    mysql_select_db('db'); 
    $query= "SHOW TABLE STATUS LIKE 'count_page'"; $result=mysql_query($query);
    if (mysql_num_rows($results)> 0) {  
        $rst=mysql_fetch_arry($result); print $rst['Update_time']; 
    } else {
        print 'These arent the droids youre looking for'; 
    } 
    mysql_close(); 
?>

答

You can make text file which contains the last updated date. Add this to your cron file:

file_put_contents('date.txt', date('m/d/Y/g:iA'));

Then put this to your table showing script where you want to add last updated date.

echo '<b>Data Last Updated : (' . file_get_contents("date.txt") . ')</b>';

You can always put extra timestamp column to your table and use it, but this is one approach.

MySQL表上次更新时如何显示PHP页面？

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