Server recommendations

If you are unsure on how to configure these settings, please contact your hosting.

Recommended

PHP versions

Version
Minimum 5.6
Recommended 7.1 or greater

PHP configuration limits

Setting Value
max_execution_time 180
memory_limit  256M
post_max_size 32M
upload_max_filesize 32M

WordPress memory limit

define( 'WP_MEMORY_LIMIT', '256M' );

WordPress memory can be different from the server – you need to set this regardless of server memory settings

https://codex.wordpress.org/Editing_wp-config.php#Increasing_memory_allocated_to_PHP