PHP dynamic bar chart implementation method _ PHP Tutorial

PHP dynamic bar chart implementation method. PHP dynamic bar chart implementation method this article mainly introduces the PHP dynamic bar chart implementation method. The example shows the php dynamic bar chart implementation technique based on HTML elements, which is very useful and requires PHP dynamic bar chart implementation method.

This article mainly introduces the PHP dynamic bar chart implementation method. The example analyzes php's skills for implementing dynamic bar charts with HTML elements, which is very useful. For more information, see

This article describes how to implement the PHP dynamic bar chart. Share it with you for your reference. The specific analysis is as follows:

1. requirements

Query the total number of data records and the number of records that have been approved in the last month to form a column chart.

2. implementation code:

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// Calculate the day of the previous month 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 ("Y-m", $ last_month_time). "-d", $ time ); } ?> Include dirname (_ FILE _). '/config. php '; $ EndDate = date ('Y-m-D '); $ Date = strtotime ($ endDate ); $ BeginDate = last_month_today ($ date ); // Query the total number of data entries in the last month $ SQL = 'SELECT count (*) from newpro where p_date> \ ''. $ beginDate. '\' and p_date <\''. $ endDate .'\''; // $ SQL = "select count (*) from newpro where p_date> '$ inindate' and p_date <'$ endDate'"; // This statement can also be used. $ D = db ()-> query ($ SQL)-> fetch (PDO: FETCH_NUM ); // Echo "total number of data entries:". $ d [0]; // Query the number of data entries that have passed the review $ Sql2 = $ SQL. 'and is_pa_check_first = 1 and is_pa_check_second = 1 and is_pa_check_third = 1 '; $ D2 = db ()-> query ($ sql2)-> fetch (PDO: FETCH_NUM ); // Echo "number of data records approved:". $ d2 [0]; // Query the number of items that have been approved at a time $ Sql3 = $ SQL. 'and is_pa_check_first = 1 '; $ D3 = db ()-> query ($ sql3)-> fetch (PDO: FETCH_NUM ); // Query the number of items that pass the secondary review $ Sql4 = $ SQL. 'and is_pa_check_first = 1 and is_pa_check_second = 1 '; $ D4 = db ()-> query ($ sql4)-> fetch (PDO: FETCH_NUM ); ?>