What are the key differences between the "scr" and "src" attributes in HTML when including images using PHP?

The key difference between the "scr" and "src" attributes in HTML when including images using PHP is that "scr" is a typo and should be corrected to "src" to properly specify the image source. This mistake can lead to the image not displaying correctly on the webpage. To fix this issue, simply replace "scr" with "src" in the HTML code.

<!-- Incorrect usage of "scr" attribute -->
<img scr="image.jpg" alt="Image">

<!-- Corrected code with "src" attribute -->
<img src="image.jpg" alt="Image">