// This function has been deprecated function deprecatedFunction() { t3lib_div::logDeprecatedFunction('deprecatedFunction', 'ExtensionName', '4.5.0'); } // Call the function deprecatedFunction();
// This function has been deprecated function deprecatedFunction() { t3lib_div::logDeprecatedFunction('deprecatedFunction', 'ExtensionName', '4.5.0'); } // Call the function if (function_exists('deprecatedFunction')) { deprecatedFunction(); }In Example 1, the deprecatedFunction() function is called directly, and a warning message will be logged using the logDeprecatedFunction() function. In Example 2, the function_exists() function is used to check if the deprecatedFunction() function exists before calling it. This avoids the warning message being logged if the function doesn't exist. Overall, the t3lib_div package library is used in TYPO3 development to provide various utility functions, including the logDeprecatedFunction() function, which is used to log warning messages when a deprecated function is called.