What are some best practices for writing PHP scripts to avoid compatibility issues with different server configurations?

One common best practice to avoid compatibility issues with different server configurations is to use PHP functions that are available in all versions of PHP. This can be achieved by checking the PHP version before using certain functions or features that may not be supported in older versions. 

if (version_compare(PHP_VERSION, '7.0.0', '<')) {
    // Use alternative code for older PHP versions
} else {
    // Use code that requires PHP 7.0.0 or higher
}

Keywords

PHP server configurations compatibility error handling functions

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