预定义常量
 下列常量由此扩展定义,且仅在此扩展编译入 PHP 或在运行时动态载入时可用。
 
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EXP_GLOB
     (integer)
   
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     Indicates that the pattern is a glob-style string pattern.
    
   
 
  
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EXP_EXACT
     (integer)
   
    - 
    
     Indicates that the pattern is an exact string.
    
   
 
  
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EXP_REGEXP
     (integer)
   
    - 
    
     Indicates that the pattern is a regexp-style string pattern.
    
   
 
  
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EXP_EOF
     (integer)
   
    - 
    
     Value, returned by  expect_expectl(), when EOF is
     reached.
    
   
 
  
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EXP_TIMEOUT
     (integer)
   
    - 
    
     Value, returned by  expect_expectl() upon timeout of
     seconds, specified in value of expect.timeout
    
   
 
  
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EXP_FULLBUFFER
     (integer)
   
    - 
    
     Value, returned by  expect_expectl() if no pattern have
     been matched.