modified benchmark - add array_key_exists
modified benchmark - add array_key_exists

tomaszdurka/CM,alexispeter/CM,zazabe/cm,fauvel/CM,njam/CM,cargomedia/CM,alexispeter/CM,fvovan/CM,alexispeter/CM,tomaszdurka/CM,christopheschwyzer/CM,mariansollmann/CM,njam/CM,fauvel/CM,zazabe/cm,fauvel/CM,mariansollmann/CM,tomaszdurka/CM,cargomedia/CM,christopheschwyzer/CM,cargomedia/CM,njam/CM,vogdb/cm,fauvel/CM,tomaszdurka/CM,christopheschwyzer/CM,vogdb/cm,tomaszdurka/CM,fauvel/CM,fvovan/CM,alexispeter/CM,njam/CM,vogdb/cm,zazabe/cm,fvovan/CM,zazabe/cm,cargomedia/CM,vogdb/cm,christopheschwyzer/CM,njam/CM,fvovan/CM,vogdb/cm,mariansollmann/CM,mariansollmann/CM