PHP configuration for a WordPress site.

php-config-for-wordpress.ini

; the maximum time in seconds a script is allowed to run before it is terminated by the parser
max_execution_time = 300

; the maximum amount of memory in bytes that a script is allowed to allocate.
; Suggested: 256 MB or greater
memory_limit = 128M

; How many input variables may be accepted
max_input_vars = 4000

; Sets max size of post data allowed. To upload large files, this value must be larger than upload_max_filesize. 
post_max_size = 64M

; The maximum size of an uploaded file. post_max_size must be larger than this value.
upload_max_filesize = 32M

If you are using Nginx server, you also need to increase client_max_body_size

# set client body size
client_max_body_size 32M;