How can variables be dynamically named in PHP, such as appending a letter or number to a variable name based on another variable?

To dynamically name variables in PHP, you can use variable variables. This means using a variable to create the name of another variable. One common approach is to append a letter or number to a variable name based on another variable. This can be achieved by concatenating strings to create the variable name dynamically.

// Example of dynamically naming variables by appending a number
$baseVar = 'variable';
$number = 1;
${$baseVar . $number} = 'value';

echo $variable1; // Output: value