The int and the 11 in the positive out int (11) solve the Thought

int and 11 in the Int (11)
Please match int (11) and int

That is, when no subsequent parentheses match only int

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$str    =<<
  
  
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$str =<<
    
    

     "; Echo $m [2];
     
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$str =<<
       
      
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According to the application of the landlord, the detection of int can be.
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