\"Composer Update Memory Limit Error: How to Fix the \'Fatal error: Allowed memory size exhausted\'?\"

Composer Update Memory Limit Error and Resolution

When attempting to run the "composer update" command in a shared hosting environment, users may encounter the following error message:

Fatal error: Allowed memory size of 268435456 bytes exhausted

This error indicates that Composer requires more memory than the current allocation allows. To resolve this issue, the user can follow the suggestion provided by their hosting provider and run the command with a higher memory limit.

However, this approach may not always be effective. If the "Could not open file: composer" error persists, the problem may lie elsewhere. In this situation, the recommended solution is to set Composer to use as much memory as it needs with the following command:

COMPOSER_MEMORY_LIMIT=-1 composer update

By setting the COMPOSER_MEMORY_LIMIT environment variable to -1, Composer will be instructed to use the maximum available memory, effectively removing the memory restriction and allowing the update process to proceed smoothly.

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