How can the memory limit in PHP be adjusted if there is no access to php.ini?

If there is no access to the php.ini file, the memory limit in PHP can be adjusted programmatically using the ini_set() function. This function allows you to temporarily change the configuration values of PHP settings, including memory_limit. By using ini_set('memory_limit', '256M'), for example, you can increase the memory limit to 256 megabytes for the current script execution.

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