Additional PHP 7 modifications

[bbs2web]

Changed mysql_ calls depreciated in PHP 7 to mysqli_

Signed-off-by: bbs2web bbs2web@hotmail.com

[bbs2web]

The above patches fix issues with running A2Billing on PHP 7, specifically the CSV and XML export functionality which generated the following errors:

[Tue Oct 27 10:53:59.619955 2020] [php7:error] [pid 23279] [client 41.79.23.231:55804] PHP Fatal error:  Uncaught Error: Call to undefined function mysql_pconnect() in /usr/local/src/a2billing/common/lib/iam_csvdump.php:218\nStack trace:\n#0 /usr/local/src/a2billing/common/lib/iam_csvdump.php(272): iam_csvdump->_db_connect_mysql('a2billing', 'a2billing', 'secret', 'localhost')\n#1 /usr/local/src/a2billing/common/lib/iam_csvdump.php(454): iam_csvdump->_generate_csv_mysql('SELECT t1.start...', 'a2billing', 'a2billing', 'secret', 'localhost')\n#2 /usr/local/src/a2billing/admin/Public/export_csv.php(62): iam_csvdump->dump('SELECT t1.start...', 'Dump_2020-10-27', 'csv', 'a2billing', 'a2billing', 'secret', 'localhost', 'mysql')\n#3 {main}\n  thrown in /usr/local/src/a2billing/common/lib/iam_csvdump.php on line 218, referer: https://a2billing.site.local/admin/Public/call-log-customers.php?s=1&t=0&order=t1.starttime&sens=DESC&current_page=0

[Wed Oct 28 14:16:32.134663 2020] [php7:error] [pid 18627] [client 41.79.23.231:47821] PHP Fatal error:  Uncaught Error: Call to undefined function mysqli_field_name() in /usr/local/src/a2billing/common/lib/iam_csvdump.php:396\nStack trace:\n#0 /usr/local/src/a2billing/common/lib/iam_csvdump.php(376): iam_csvdump->_generate_msqlxml(Object(mysqli_result))\n#1 /usr/local/src/a2billing/common/lib/iam_csvdump.php(462): iam_csvdump->_generate_xml_mysql('SELECT t1.start...', 'a2billing', 'a2billing', 'secret', 'localhost')\n#2 /usr/local/src/a2billing/admin/Public/export_csv.php(66): iam_csvdump->dump('SELECT t1.start...', 'Dump_2020-10-28', 'xml', 'a2billing', 'a2billing', 'secret', 'localhost', 'mysql')\n#3 {main}\n  thrown in /usr/local/src/a2billing/common/lib/iam_csvdump.php on line 396, referer: https://a2billing.site.local/admin/Public/call-log-customers.php?s=1&t=0&order=t1.starttime&sens=DESC&current_page=4&entercustomer_num=&posted=1&Period=&frommonth=&fromstatsmonth=&tomonth=&tostatsmonth=&fromday=true&fromstatsday_sday=28&fromstatsmonth_sday=2020-10&today=true&tostatsday_sday=28&tostatsmonth_sday=2020-10&dsttype=1&srctype=1&clidtype=&channel=&resulttype=min&dst=&src=&clid=&terminatecauseid=ANSWER&choose_calltype=-1&entercustomer=1&enterprovider=&entertrunk=