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<?php $re = '/{Delta=\[([^][,]*),\h*([^][]*)][^{}]*}/'; $str = '{Delta=[r3, r4], X=alarmOff, Y=heatOn}'; $result = preg_replace($re, '$1$2', $str); echo $result;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/AvPiT
function name:  (null)
number of ops:  10
compiled vars:  !0 = $re, !1 = $str, !2 = $result
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%2F%7BDelta%3D%5C%5B%28%5B%5E%5D%5B%2C%5D%2A%29%2C%5Ch%2A%28%5B%5E%5D%5B%5D%2A%29%5D%5B%5E%7B%7D%5D%2A%7D%2F'
    4     1        ASSIGN                                                   !1, '%7BDelta%3D%5Br3%2C+r4%5D%2C+X%3DalarmOff%2C+Y%3DheatOn%7D'
    5     2        INIT_FCALL                                               'preg_replace'
          3        SEND_VAR                                                 !0
          4        SEND_VAL                                                 '%241%242'
          5        SEND_VAR                                                 !1
          6        DO_ICALL                                         $5      
          7        ASSIGN                                                   !2, $5
    7     8        ECHO                                                     !2
    8     9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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