Constructs a ReflectionClass

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- Constructs a ReflectionClass

# ReflectionClass::__construct

(PHP 5, PHP 7, PHP 8)

ReflectionClass::__construct — Constructs a ReflectionClass

### Description

public ReflectionClass::__construct(object|string `$objectOrClass`)

Constructs a new ReflectionClass object.

### Parameters

`objectOrClass`

  Either a string containing the name of the class to reflect, or an object.

### Errors/Exceptions

Throws ReflectionException if the class to reflect does not exist.

### Examples

Example #1 Basic usage ReflectionClass

    <?php
    $reflection = new ReflectionClass('Exception');
    echo $reflection;
    ?>

The above example will output something similar to:

    Class [ <internal:Core> class Exception implements Stringable, Throwable ] {

      - Constants [0] {
      }

      - Static properties [0] {
      }

      - Static methods [0] {
      }

      - Properties [7] {
        Property [ protected $message = '' ]
        Property [ private string $string = '' ]
        Property [ protected $code = 0 ]
        Property [ protected string $file = '' ]
        Property [ protected int $line = 0 ]
        Property [ private array $trace = [] ]
        Property [ private ?Throwable $previous = NULL ]
      }

      - Methods [11] {
        Method [ <internal:Core> private method __clone ] {

          - Parameters [0] {
          }
          - Return [ void ]
        }

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

          - Parameters [3] {
            Parameter #0 [ <optional> string $message = "" ]
            Parameter #1 [ <optional> int $code = 0 ]
            Parameter #2 [ <optional> ?Throwable $previous = null ]
          }
        }

        Method [ <internal:Core> public method __wakeup ] {

          - Parameters [0] {
          }
          - Tentative return [ void ]
        }

        Method [ <internal:Core, prototype Throwable> final public method getMessage ] {

          - Parameters [0] {
          }
          - Return [ string ]
        }

        Method [ <internal:Core, prototype Throwable> final public method getCode ] {

          - Parameters [0] {
          }
        }

        Method [ <internal:Core, prototype Throwable> final public method getFile ] {

          - Parameters [0] {
          }
          - Return [ string ]
        }

        Method [ <internal:Core, prototype Throwable> final public method getLine ] {

          - Parameters [0] {
          }
          - Return [ int ]
        }

        Method [ <internal:Core, prototype Throwable> final public method getTrace ] {

          - Parameters [0] {
          }
          - Return [ array ]
        }

        Method [ <internal:Core, prototype Throwable> final public method getPrevious ] {

          - Parameters [0] {
          }
          - Return [ ?Throwable ]
        }

        Method [ <internal:Core, prototype Throwable> final public method getTraceAsString ] {

          - Parameters [0] {
          }
          - Return [ string ]
        }

        Method [ <internal:Core, prototype Stringable> public method __toString ] {

          - Parameters [0] {
          }
          - Return [ string ]
        }
      }
    }

### See Also

- ReflectionObject::__construct() - Constructs a ReflectionObject
- Constructors