PHP ReflectionClass export()用法及代码示例

ReflectionClass::export()函数是PHP中的内置函数，如果参数设置为TRUE，则用于返回字符串，否则返回NULL。

用法:

string ReflectionClass::export( mixed $argument, bool $return = FALSE)

参数：该函数接受上述和以下描述的两个参数：

• $argument:它包含要导出的用户定义的类。
• $return:它是布尔值TRUE或FALSE。

返回值：如果参数设置为TRUE，则此函数以字符串形式返回，否则返回NULL。

以下示例程序旨在说明PHP中的ReflectionClass::export()函数：

示例1:

<?php 
  
// Defining a user-defined class Company 
class Company { 
    public $var1 = 'GeeksforGeeks'; 
    public $var2 = 'GFG'; 
  
    public function type() { 
        return 'Company'; 
    } 
} 
  
// Calling the export function 
$A = ReflectionClass::export('Company', $return = TRUE); 
  
// Getting the returned value 
var_dump($A);  
?>

输出：

string(389) "Class [  class Company ] {
  @@ /home/cg/root/7286175/main.php 4-11

  - Constants [0] {
  }

  - Static properties [0] {
  }

  - Static methods [0] {
  }

  - Properties [2] {
    Property [  public $var1 ]
    Property [  public $var2 ]
  }

  - Methods [1] {
    Method [  public method type ] {
      @@ /home/cg/root/7286175/main.php 8 - 10
    }
  }
}
"

示例2:

<?php 
   
// Calling the export function on inbuilt ReflectionClass 
$A = ReflectionClass::export('ReflectionClass'); 
   
// Getting the returned value 
var_dump($A);  
?>

输出：

Class [ <internal:Reflection> class ReflectionClass implements Reflector ] {

  - Constants [3] {
    Constant [ integer IS_IMPLICIT_ABSTRACT ] { 16 }
    Constant [ integer IS_EXPLICIT_ABSTRACT ] { 32 }
    Constant [ integer IS_FINAL ] { 4 }
  }

  - Static properties [0] {
  }

  - Static methods [1] {
    Method [ <internal:Reflection, prototype Reflector> static public method export ] {

      - Parameters [2] {
        Parameter #0 [ <required> $argument ]
        Parameter #1 [ <optional> $return ]
      }
    }
  }

  - Properties [1] {
    Property [ <default> public $name ]
  }

  - Methods [50] {
    Method [ <internal:Reflection> final private method __clone ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection, ctor> public method __construct ] {

      - Parameters [1] {
        Parameter #0 [ <required> $argument ]
      }
    }

    Method [ <internal:Reflection, prototype Reflector> public method __toString ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getName ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method isInternal ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method isUserDefined ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method isAnonymous ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method isInstantiable ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method isCloneable ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getFileName ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getStartLine ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getEndLine ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getDocComment ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getConstructor ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method hasMethod ] {

      - Parameters [1] {
        Parameter #0 [ <required> $name ]
      }
    }

    Method [ <internal:Reflection> public method getMethod ] {

      - Parameters [1] {
        Parameter #0 [ <required> $name ]
      }
    }

    Method [ <internal:Reflection> public method getMethods ] {

      - Parameters [1] {
        Parameter #0 [ <optional> $filter ]
      }
    }

    Method [ <internal:Reflection> public method hasProperty ] {

      - Parameters [1] {
        Parameter #0 [ <required> $name ]
      }
    }

    Method [ <internal:Reflection> public method getProperty ] {

      - Parameters [1] {
        Parameter #0 [ <required> $name ]
      }
    }

    Method [ <internal:Reflection> public method getProperties ] {

      - Parameters [1] {
        Parameter #0 [ <optional> $filter ]
      }
    }

    Method [ <internal:Reflection> public method hasConstant ] {

      - Parameters [1] {
        Parameter #0 [ <required> $name ]
      }
    }

    Method [ <internal:Reflection> public method getConstants ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getConstant ] {

      - Parameters [1] {
        Parameter #0 [ <required> $name ]
      }
    }

    Method [ <internal:Reflection> public method getInterfaces ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getInterfaceNames ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method isInterface ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getTraits ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getTraitNames ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getTraitAliases ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method isTrait ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method isAbstract ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method isFinal ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getModifiers ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method isInstance ] {

      - Parameters [1] {
        Parameter #0 [ <required> $object ]
      }
    }

    Method [ <internal:Reflection> public method newInstance ] {

      - Parameters [1] {
        Parameter #0 [ <required> $args ]
      }
    }

    Method [ <internal:Reflection> public method newInstanceWithoutConstructor ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method newInstanceArgs ] {

      - Parameters [1] {
        Parameter #0 [ <optional> array $args ]
      }
    }

    Method [ <internal:Reflection> public method getParentClass ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method isSubclassOf ] {

      - Parameters [1] {
        Parameter #0 [ <required> $class ]
      }
    }

    Method [ <internal:Reflection> public method getStaticProperties ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getStaticPropertyValue ] {

      - Parameters [2] {
        Parameter #0 [ <required> $name ]
        Parameter #1 [ <optional> $default ]
      }
    }

    Method [ <internal:Reflection> public method setStaticPropertyValue ] {

      - Parameters [2] {
        Parameter #0 [ <required> $name ]
        Parameter #1 [ <required> $value ]
      }
    }

    Method [ <internal:Reflection> public method getDefaultProperties ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method isIterateable ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method implementsInterface ] {

      - Parameters [1] {
        Parameter #0 [ <required> $interface ]
      }
    }

    Method [ <internal:Reflection> public method getExtension ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getExtensionName ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method inNamespace ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getNamespaceName ] {

      - Parameters [0] {
      }
    }

    Method [ <internal:Reflection> public method getShortName ] {

      - Parameters [0] {
      }
    }
  }
}

NULL

参考： https://secure.php.net/manual/en/reflectionclass.export.php