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  Reading CONSTANTS versus Global Variables
Constants x 1.09 faster 0.0011 Globals 0.0012
  + vs += integer operators
+ integer 0.0013 += integer x 1.86 faster 0.0007
  + vs += string operators
+ strings 0.0022 += strings x 1.22 faster 0.0018
  += vs + string operators
+= strings x 1.38 faster 0.0016 + strings 0.0022
  short vs long variable names
short var name (1 char) x 2.00 faster 0.0004 long var name (72 chars) 0.0008

Testing PHP 5.0.0b4 Completed on WINNT. Benchmark done on: 29-Feb-2004 15:23:25


(c) 2003-2004 John Lim PHP Benchmark Suite (PHP BS 1.0).