What are the potential pitfalls of using double quotes for variables in PHP strings, as mentioned by forum users?

Using double quotes for variables in PHP strings can lead to potential pitfalls such as variable interpolation, which can cause unexpected behavior or security vulnerabilities if the variable name is not properly sanitized. To avoid these issues, it is recommended to use single quotes for strings that do not require variable interpolation. 

// Using single quotes to avoid variable interpolation pitfalls
$name = 'John';
echo 'Hello, ' . $name . '!';

Keywords

double quotes variables PHP strings concatenation interpolation

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