Are there any best practices for using quotes in PHP strings?

When using quotes in PHP strings, it is important to be mindful of the type of quotes being used to avoid conflicts and errors. One best practice is to use single quotes for string literals whenever possible, as they are more efficient and do not require PHP to parse for variables. However, if you need to include variables within a string, it is recommended to use double quotes and properly escape any special characters or variables to prevent unexpected behavior.

// Using single quotes for string literals
$string1 = 'This is a string with single quotes';

// Using double quotes for string interpolation
$variable = 'variable';
$string2 = "This is a string with double quotes and a $variable";