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<?php $str = 'a=1&b=2&c=3&d=4'; if( isset($str[0]) ) { //parse_url('a=1&b=2&c=3', $arr); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 3
Branch analysis from position: 3
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 3
filename:       /in/pCcFB
function name:  (null)
number of ops:  4
compiled vars:  !0 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'a%3D1%26b%3D2%26c%3D3%26d%3D4'
    3     1        ISSET_ISEMPTY_DIM_OBJ                         0          !0, 0
          2      > JMPZ                                                     ~2, ->3
    5     3    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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