What are the differences between the two PHP code styles presented in the forum thread?

The main difference between the two PHP code styles presented in the forum thread is the use of single quotes vs. double quotes for string interpolation. Single quotes do not interpret variables or special characters within the string, while double quotes do. To solve this issue, you can either use double quotes for string interpolation or concatenate variables with a period when using single quotes. Code snippet with double quotes for string interpolation: 

$name = "John";
echo "Hello, $name!";
```

Code snippet with concatenation in single quotes:
```php
$name = "John";
echo 'Hello, ' . $name . '!';

Keywords

Syntax coding style readability performance maintainability

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