What steps can be taken to troubleshoot and resolve memory-related errors that occur sporadically in PHP applications, particularly in client-side environments?

Memory-related errors in PHP applications can be caused by issues such as memory leaks or exceeding memory limits set in the PHP configuration. To troubleshoot and resolve these errors, you can try increasing the memory limit in your PHP configuration, optimizing your code to reduce memory usage, or using tools like Xdebug to identify memory leaks.

// Increase memory limit in PHP configuration
ini_set('memory_limit', '256M');