What are the potential challenges of integrating PEAR packages on an external server in PHP projects?

One potential challenge of integrating PEAR packages on an external server in PHP projects is ensuring that the server has the necessary permissions to access and use the PEAR packages. This can be resolved by setting the correct file permissions for the PEAR packages directory on the server. 

// Set correct file permissions for PEAR packages directory
chmod('/path/to/pear/packages/directory', 0755);

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PEAR packages external server integration PHP projects challenges

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