How can CSS be used to define text colors in PHP applications instead of using deprecated HTML tags like <font>?

To define text colors in PHP applications without using deprecated HTML tags like <font>, CSS can be utilized by adding inline styles to the HTML elements. This can be achieved by echoing out HTML elements with inline style attributes that define the text color using CSS properties like color.

&lt;?php
echo &#039;&lt;p style=&quot;color: red;&quot;&gt;This text will be red&lt;/p&gt;&#039;;
echo &#039;&lt;p style=&quot;color: blue;&quot;&gt;This text will be blue&lt;/p&gt;&#039;;
?&gt;