What potential issues can arise when copying and pasting PHP code from different sources?

When copying and pasting PHP code from different sources, potential issues can arise due to conflicting variable names, incompatible coding styles, or hidden malicious code. To avoid these problems, it is essential to carefully review and refactor the code to ensure consistency and security. 

// Example of refactored code to avoid potential issues when copying and pasting PHP code
// Rename variables to avoid conflicts
$sourceVariable = 'example';

// Use consistent coding style
if ($sourceVariable == 'example') {
    echo 'Code refactored successfully!';
}

Keywords

Syntax errors compatibility issues security vulnerabilities function conflicts code duplication

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