PHP Dynamic Histogram Implementation Method _php tutorial

PHP Dynamic Histogram Implementation method

This article mainly introduces the PHP dynamic Histogram implementation method, the example analysis of PHP with HTML elements to implement dynamic histogram skills, very practical value, the need for friends can refer to the next

The example of PHP dynamic histogram implementation is described in this paper. Share to everyone for your reference. The specific analysis is as follows:

1. Requirements

Query the total number of data in the last one months and the number of approved bars, make a histogram

2. Implementation code:

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Calculated on the one month of today function Last_month_today ($time) { $last _month_time = mktime (Date ("G", $time), date ("I", $time), date ("s", $time), date ("n", $time), 0, date ("Y", $time)); $last _month_t = Date ("T", $last _month_time); if ($last _month_t < date ("J", $time)) { Return Date ("Y-m-t h:i:s", $last _month_time); } Return Date (date ("Y-m", $last _month_time). "-D", $time); } ?> Include DirName (DirName (dirname (__file__)). ' /config.php '; $endDate = Date (' y-m-d '); $date = Strtotime ($endDate); $beginDate = Last_month_today ($date); Query the total number of data bars for the last one months $sql = ' SELECT count (*) from Newpro where P_date>\ '. $beginDate. ' \ ' and p_date<\ '. $endDate. ' \''; $sql = "SELECT count (*) from Newpro where p_date> ' $beginDate ' and P_date < ' $endDate '";//This statement can also $d = db ()->query ($sql)->fetch (pdo::fetch_num); echo "Total number of data bars:". $d [0]; Number of data bars passed by the query audit $sql 2= $sql. ' and Is_pa_check_first=1 and is_pa_check_second=1 and Is_pa_check_third=1 '; $d 2 = db ()->query ($sql 2)->fetch (pdo::fetch_num); echo "Number of data bars approved:". $d 2[0]; Query the number of passes for an audit $sql 3= $sql. ' and Is_pa_check_first=1 '; $d 3 = db ()->query ($sql 3)->fetch (pdo::fetch_num); Check the number of passes for two audits $sql 4= $sql. ' and is_pa_check_first=1 and is_pa_check_second=1 '; $d 4 = db ()->query ($sql 4)->fetch (pdo::fetch_num); ?> "> "> "> Total First Instance passed Second-Instance Adoption Audit through

3. As shown below:

I hope this article is helpful to everyone's PHP programming.

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