How to Properly Embed Variables in PHP Echo Statements?

How to Insert Variables into Echoed Strings in PHP

When attempting to incorporate a variable into an echo string, it is crucial to avoid using single quotes, as they prevent PHP variable parsing. Instead, there are two recommended approaches:

1. Double Quotes:
   Enclose the echo string within double quotes and use the concatenation operator . to append the variable.

   $variableName = 'Ralph';
   echo 'Hello '.$variableName.'!';

2. Dot Operator:
   Extend the echo statement with a dot operator to append the variable.

   echo "Hello $variableName!";

Applying these approaches to the given code snippet:

<pre class="brush:php;toolbar:false">$i = 1
echo '
<p class="paragraph$i">
</p>
'
++i

Double Quotes Method:

<pre class="brush:php;toolbar:false">$i = 1;
echo '<p class="paragraph'.$i.'"></p>';
++i;

Dot Operator Method:

<pre class="brush:php;toolbar:false">$i = 1;
echo "<p class='paragraph$i'></p>";
++i;

Both methods will successfully insert the variable $i into the echo string, dynamically generating the appropriate HTML element based on its value.

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