How to activate '–enable-memory-limit' configure option, in WHM/SSH?

Hi guys,

in my previous thread, i cant set different memory_limit value only in a file using instruction from other member. Someone told me the Server PHP installation must be compiled with the –enable-memory-limit configure option

so how to do that, in WHM/SSH?

if its in whm >> EasyApache (Apache Update), i can using easy apache, but which step exactly to do this? :

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