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<?php $text = "rami@gmail.com:Password This email is from Gmail email subscription is valid omar@yahoo.com:password this email is from yahoo email subscription is valid "; var_export(preg_match_all('~^[^@\s]+@[^:\s]+:\S+~m', $text, $matches) ? $matches[0]: "none");
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 11
Branch analysis from position: 8
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RpafD
function name:  (null)
number of ops:  15
compiled vars:  !0 = $text, !1 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'rami%40gmail.com%3APassword%0AThis+email+is+from+Gmail%0Aemail+subscription+is+valid+%0A%0Aomar%40yahoo.com%3Apassword+%0Athis+email+is+from+yahoo+%0Aemail+subscription+is+valid+'
   10     1        INIT_FCALL                                               'var_export'
          2        INIT_FCALL                                               'preg_match_all'
          3        SEND_VAL                                                 '%7E%5E%5B%5E%40%5Cs%5D%2B%40%5B%5E%3A%5Cs%5D%2B%3A%5CS%2B%7Em'
          4        SEND_VAR                                                 !0
          5        SEND_REF                                                 !1
          6        DO_ICALL                                         $3      
          7      > JMPZ                                                     $3, ->11
          8    >   FETCH_DIM_R                                      ~4      !1, 0
          9        QM_ASSIGN                                        ~5      ~4
         10      > JMP                                                      ->12
         11    >   QM_ASSIGN                                        ~5      'none'
         12    >   SEND_VAL                                                 ~5
         13        DO_ICALL                                                 
         14      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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