How can local PHP testing environments differ from online PHP environments in terms of error detection and resolution?

Local PHP testing environments can differ from online PHP environments in terms of error detection and resolution due to differences in server configurations, PHP versions, and installed extensions. To ensure smooth transition from local to online environments, it is important to thoroughly test the code in different environments and address any compatibility issues beforehand. 

// Example code snippet for checking PHP version compatibility
if (version_compare(PHP_VERSION, '7.2.0') < 0) {
    echo 'Error: This script requires PHP 7.2.0 or higher.';
    exit;
}

Keywords

local testing online environment error detection resolution PHP functions

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