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<?php $xml = ' <section> <paragraph>new article test</paragraph> <paragraph xmlns:tmp="http://ez.no/namespaces/ezpublish3/temporary/"> <literal>$nbsp: &amp;nbsp; $amp;nbsp: &amp;amp;nbsp: $amp;$nbsp: &amp;amp;&amp;nbsp; </literal> </paragraph> </section>'; $pattern = '(<paragraph[^>]*\>)((?<pre>.*)(?<nb>&amp;nbsp;)(?<post>.*))(<\/paragraph>)'; $newXml = preg_replace( $pattern, '-', $xml ); var_dump( $newXml );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4OWhi
function name:  (null)
number of ops:  12
compiled vars:  !0 = $xml, !1 = $pattern, !2 = $newXml
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%0A%3Csection%3E%0A%3Cparagraph%3Enew%C2%A0article%C2%A0test%3C%2Fparagraph%3E%0A%3Cparagraph+xmlns%3Atmp%3D%22http%3A%2F%2Fez.no%2Fnamespaces%2Fezpublish3%2Ftemporary%2F%22%3E%0A%3Cliteral%3E%24nbsp%3A+%26amp%3Bnbsp%3B%0A%24amp%3Bnbsp%3A+%26amp%3Bamp%3Bnbsp%3A%0A%24amp%3B%24nbsp%3A+%26amp%3Bamp%3B%26amp%3Bnbsp%3B%0A%3C%2Fliteral%3E%0A%3C%2Fparagraph%3E%0A%3C%2Fsection%3E'
   14     1        ASSIGN                                                   !1, '%28%3Cparagraph%5B%5E%3E%5D%2A%5C%3E%29%28%28%3F%3Cpre%3E.%2A%29%28%3F%3Cnb%3E%26amp%3Bnbsp%3B%29%28%3F%3Cpost%3E.%2A%29%29%28%3C%5C%2Fparagraph%3E%29'
   15     2        INIT_FCALL                                               'preg_replace'
          3        SEND_VAR                                                 !1
          4        SEND_VAL                                                 '-'
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                         $5      
          7        ASSIGN                                                   !2, $5
   17     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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