Many old projects have bad code, but the budget doesn't exist to rewrite the codebase. You can update this code to be safer by introducing contemporary input validation, sanitation, and safer database queries.
In this tutorial viewers will learn how to code links for mobile sites that, once clicked, send a call or text to a specified number.
For a telephone link (once clicked, calls a number), begin with a normal "<a href=" link tag. For the href, specify…