Are there any best practices for naming variables in PHP to avoid potential conflicts or errors?

When naming variables in PHP, it is important to follow certain best practices to avoid potential conflicts or errors. One common practice is to use descriptive names that clearly indicate the purpose of the variable. Additionally, it is recommended to use camelCase or snake_case for variable names to improve readability. Finally, avoid using reserved keywords or names that are already in use within the code to prevent conflicts. 

// Example of using descriptive variable names in PHP
$firstName = "John";
$lastName = "Doe";

// Example of using camelCase for variable names
$userName = "johndoe";

// Example of avoiding reserved keywords or existing names
$counter = 0;

Keywords

naming conventions variable scope namespace reserved keywords error handling

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