echo is the most commonly used command for output and display functions in PHP.
We can make it display any visible characters.
<?php echo 123; ?>
<?php $iphone = 6088; echo $iphone; ?>
You can experiment with it. In the next chapter, when we talk about data types, I will teach you how to output Chinese and use PHP to display web page content.
Word:
*echo * Pronunciation: ['ekoʊ]
Explanation: To echo; to reverberate.
Function explanation: output, display
