What are the potential pitfalls of using dollar signs in variable initialization in PHP?

Using dollar signs in variable initialization in PHP can cause syntax errors or unexpected behavior because PHP interprets them as variable declarations. To avoid this issue, it is recommended to use the "unset" function to unset the variable before reinitializing it. 

$variable = 10;

// Unset the variable before reinitializing it
unset($variable);

$variable = 20;

echo $variable; // Output: 20

Keywords

dollar signs variable initialization PHP syntax error variable naming conventions

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