Best Practice: It is recommended to use single quotes if there are no variables or escape sequences in strings, otherwise, you should use double quotes.
Single quotes
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# Literal string (there is no variable inside, it is "text only") $computerName = 'server01' |
Double quotes
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# Expanding string (there is a variable inside: $i) $computerName = "server$i" |
Explanation: Single quotes disable the expansion of variables and should be preferred if there is no variable or escape sequence inside strings to reduce unexpected results (ex: if the string contains dollar sign $, etc.).
