What potential issues could arise when using sessions in PHP, especially when switching between different hosting environments?

Potential issues that could arise when using sessions in PHP, especially when switching between different hosting environments, include session data not persisting or being lost due to different server configurations or session save paths. To solve this issue, it is recommended to set a custom session save path in your PHP code to ensure consistency across different hosting environments. 

// Set a custom session save path
session_save_path('/path/to/custom/sessions');

Keywords

Session hijacking session fixation session data loss session cookie security hosting environment mismatch

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