What is the significance of the PHP Fatal error: Allowed memory size message in the log file?

The PHP Fatal error: Allowed memory size message in the log file indicates that the script has exhausted the memory limit set in the php.ini file. To solve this issue, you can increase the memory_limit parameter in the php.ini file or adjust it programmatically using the ini_set() function within your PHP script.

// Increase memory limit programmatically
ini_set('memory_limit', '256M');