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<?php $pattern = <<<'PATTERN' /(?xJ) (?<DN>Mon|Fri|Sun)(?:day)?| (?<DN>Tue)(?:sday)?| (?<DN>Wed)(?:nesday)?| (?<DN>Thu)(?:rsday)?| (?<DN>Sat)(?:urday)? / PATTERN; $subject = "Monday\nThursday"; preg_match_all($pattern, $subject, $matches, PREG_PATTERN_ORDER); var_dump($matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RiJpq
function name:  (null)
number of ops:  12
compiled vars:  !0 = $pattern, !1 = $subject, !2 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%2F%28%3FxJ%29%0A%28%3F%3CDN%3EMon%7CFri%7CSun%29%28%3F%3Aday%29%3F%7C%0A%28%3F%3CDN%3ETue%29%28%3F%3Asday%29%3F%7C%0A%28%3F%3CDN%3EWed%29%28%3F%3Anesday%29%3F%7C%0A%28%3F%3CDN%3EThu%29%28%3F%3Arsday%29%3F%7C%0A%28%3F%3CDN%3ESat%29%28%3F%3Aurday%29%3F%0A%2F'
   12     1        ASSIGN                                                   !1, 'Monday%0AThursday'
   13     2        INIT_FCALL                                               'preg_match_all'
          3        SEND_VAR                                                 !0
          4        SEND_VAR                                                 !1
          5        SEND_REF                                                 !2
          6        SEND_VAL                                                 1
          7        DO_ICALL                                                 
   14     8        INIT_FCALL                                               'var_dump'
          9        SEND_VAR                                                 !2
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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