Last 5.3 release ever available: PHP 5.3.29 - 5.3 now EOL

Exemple

Many examples exist within the Reflection documentation, typically within the __construct documentation for each class.

Example #1 Reflection Example from Shell (a Terminal)

$ php --rf strlen
$ php --rc finfo
$ php --re json
$ php --ri dom

Exemplul de mai sus va afișa ceva similar cu:

Function [ <internal:Core> function strlen ] {

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

Class [ <internal:fileinfo> class finfo ] {

  - Constants [0] {
  }

  - Static properties [0] {
  }

  - Static methods [0] {
  }

  - Properties [0] {
  }

  - Methods [4] {
    Method [ <internal:fileinfo, ctor> public method finfo ] {

      - Parameters [2] {
        Parameter #0 [ <optional> $options ]
        Parameter #1 [ <optional> $arg ]
      }
    }

    Method [ <internal:fileinfo> public method set_flags ] {

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

    Method [ <internal:fileinfo> public method file ] {

      - Parameters [3] {
        Parameter #0 [ <required> $filename ]
        Parameter #1 [ <optional> $options ]
        Parameter #2 [ <optional> $context ]
      }
    }

    Method [ <internal:fileinfo> public method buffer ] {

      - Parameters [3] {
        Parameter #0 [ <required> $string ]
        Parameter #1 [ <optional> $options ]
        Parameter #2 [ <optional> $context ]
      }
    }
  }
}

Extension [ <persistent> extension #23 json version 1.2.1 ] {

  - Constants [10] {
    Constant [ integer JSON_HEX_TAG ] { 1 }
    Constant [ integer JSON_HEX_AMP ] { 2 }
    Constant [ integer JSON_HEX_APOS ] { 4 }
    Constant [ integer JSON_HEX_QUOT ] { 8 }
    Constant [ integer JSON_FORCE_OBJECT ] { 16 }
    Constant [ integer JSON_ERROR_NONE ] { 0 }
    Constant [ integer JSON_ERROR_DEPTH ] { 1 }
    Constant [ integer JSON_ERROR_STATE_MISMATCH ] { 2 }
    Constant [ integer JSON_ERROR_CTRL_CHAR ] { 3 }
    Constant [ integer JSON_ERROR_SYNTAX ] { 4 }
  }

  - Functions {
    Function [ <internal:json> function json_encode ] {

      - Parameters [2] {
        Parameter #0 [ <required> $value ]
        Parameter #1 [ <optional> $options ]
      }
    }
    Function [ <internal:json> function json_decode ] {

      - Parameters [3] {
        Parameter #0 [ <required> $json ]
        Parameter #1 [ <optional> $assoc ]
        Parameter #2 [ <optional> $depth ]
      }
    }
    Function [ <internal:json> function json_last_error ] {

      - Parameters [0] {
      }
    }
  }
}

dom

DOM/XML => enabled
DOM/XML API Version => 20031129
libxml Version => 2.7.3
HTML Support => enabled
XPath Support => enabled
XPointer Support => enabled
Schema Support => enabled
RelaxNG Support => enabled
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User Contributed Notes 2 notes

up
5
Kovin
5 years ago
If you want to use method closures and don't have PHP 5.3, perhaps you find useful the following function
<?php
   
function get_method_closure($object,$method_name){
        if(
method_exists(get_class($object),$method_name)){
           
$func            = create_function( '',
                           
'
                                $args            = func_get_args();
                                static $object    = NULL;
                               
                                /*
                                * Check if this function is being called to set the static $object, which
                                * containts scope information to invoke the method
                                */
                                if(is_null($object) && count($args) && get_class($args[0])=="'
.get_class($object).'"){
                                    $object = $args[0];
                                    return;
                                }

                                if(!is_null($object)){
                                    return call_user_func_array(array($object,"'
.$method_name.'"),$args);
                                }else{
                                    return FALSE;
                                }'
                           
);
           
           
//Initialize static $object
           
$func($object);
           
           
//Return closure
           
return $func;
        }else{
            return
false;
        }       
    }
?>
Here is how you would use it:
<?php
class foo{
    public function
bar($foo){
        return
strtolower($foo);
    }
}

$foo = new foo();
$f = get_method_closure($foo,'bar');
echo
$f("BAR");//Prints 'bar'
?>
up
2
spectrum at bigmir dot net
3 years ago
Simple table generation using Reflection:

<?php

class A
{
    public   
$name = 'Vasiliy';
    public   
$text = 'Once upon a time';
}

class
B
{
    public   
$name = 'Had bought a cat';
    public   
$text = 'named Valentine';
}

class
grid
{
    public function
build$dataSource, $headers, $fields  )
    {
       
$result = '<table border="1">';
       
$result .= $this -> make_head( $headers );
       
        foreach (
$dataSource as $source):
           
$class_name = get_class($source);
            if (
$class_name != FALSE ):
               
$reflector = new ReflectionClass($source);
                echo
'Class "'. $class_name .'" found.<br />';
               
$result .= $this -> make_row( $reflector, $fields, $source );
            endif;
        endforeach;
       
       
$result .= '</table>';
        return
$result;
    }
   
    private function
make_head( $headers )
    {
       
$result = '<tr>';
        foreach (
$headers as $header):
           
$result .= "<th>$header</th>";
        endforeach;
       
$result .= '</tr>';
        return
$result;
    }
   
    private function
make_row( $reflector, $fields, $source )
    {
       
$result = '<tr>';
        foreach (
$fields as $field ):
            if (
$reflector -> hasProperty($field) ):
               
$property = $reflector -> getProperty($field);
               
$result .= '<td>'. $property -> getValue($source) .'</td>';
            endif;
        endforeach;
       
$result .= '</tr>';
        return
$result;
    }
}

$A = new A;
$B = new B;
$C = 'Test';

$dataSource = array( $A, $B, $C );
$headers = array( 'H1', 'H2' );
$fields = array( 'name', 'text' );

$grid = new grid;
$table = $grid -> build( $dataSource, $headers, $fields );
echo
$table;

?>
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