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<?php $text = 'The $girl$ is a $good$ person'; echo preg_replace('/\$[^\s$]+\$/', '\$$0\$', $text);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bBE8E
function name:  (null)
number of ops:  5
compiled vars:  !0 = $text
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, 'The+%24girl%24+is+a+%24good%24+person'
    4     1        FRAMELESS_ICALL_3                preg_replace        ~2      '%2F%5C%24%5B%5E%5Cs%24%5D%2B%5C%24%2F', '%5C%24%240%5C%24'
          2        OP_DATA                                                      !0
          3        ECHO                                                         ~2
          4      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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