PHP is a Hypertext Preprocessor. This essentially means that PHP dynamically writes web pages for you. So it can query a database and print a report from it, or change CSS and such based on specific criteria.
PHP Programming (NEW)
PHP – Access Named Keys in Arrays – Foreach()
The foreach() function can turn Named Keys into variables just like it does array values.
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PHP – See Variable/Array Values with var_dump()
The var_dump() function allows you to see what a variable’s data type is, and what it’s value is. var_dump() https://www.php.net/manual/en/function.var-dump.php https://www.w3schools.com/php/func_var_var_dump.asp varDump.php
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MySQL – Average Values in a Column
You can pull the average of the numeric values in a column with SQL in MySQL. avg() https://dev.mysql.com/doc/refman/8.0/en/group-by-functions.html https://www.w3schools.com/sql/func_mysql_avg.asp
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