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  1. <?php
  2.  
  3. $data = <<<'DATA'
  4.  
  5. <?php
  6.  
  7. // base class with member properties and methods
  8. class Vegetable {
  9.  
  10.    var $edible;
  11.    var $color;
  12.  
  13.    function Vegetable($edible, $color="green")
  14.    {
  15.        $this->edible = $edible;
  16.        $this->color = $color;
  17.    }
  18.  
  19.    function is_edible()
  20.    {
  21.        return $this->edible;
  22.    }
  23.  
  24.    function what_color()
  25.    {
  26.        return $this->color;
  27.    }
  28.  
  29. } // end of class Vegetable
  30.  
  31. // extends the base class
  32. class Spinach extends Vegetable {
  33.  
  34.    var $cooked = false;
  35.  
  36.    function Spinach()
  37.    {
  38.        parent::__construct(true, "green");
  39.    }
  40.  
  41.    function cook_it()
  42.    {
  43.        $this->cooked = true;
  44.    }
  45.  
  46.    function is_cooked()
  47.    {
  48.        return $this->cooked;
  49.    }
  50.  
  51. } // end of class Spinach
  52.  
  53. ?>
  54. DATA;
  55.  
  56.  
  57. $class_regex = '~
  58. 					^\s*class\s+
  59. 					(?P<class>\S+)[^{}]+(\{
  60. 					(?:[^{}]*|(?2))*
  61. 					\})~mx';
  62.  
  63. $data = preg_replace_callback($class_regex, 
  64. 	function($match) {
  65. 		$function_regex = '~function\s+\K'.$match['class'].'~';
  66. 		return preg_replace($function_regex, '__construct', $match[0]);
  67. 	},
  68. 	$data);
  69.  
  70. echo $data;
  71. ?>
  72.  
Success #stdin #stdout 0.01s 23576KB
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<?php

// base class with member properties and methods
class Vegetable {

   var $edible;
   var $color;

   function __construct($edible, $color="green")
   {
       $this->edible = $edible;
       $this->color = $color;
   }

   function is_edible()
   {
       return $this->edible;
   }

   function what_color()
   {
       return $this->color;
   }

} // end of class Vegetable

// extends the base class
class Spinach extends Vegetable {

   var $cooked = false;

   function __construct()
   {
       parent::__construct(true, "green");
   }

   function cook_it()
   {
       $this->cooked = true;
   }

   function is_cooked()
   {
       return $this->cooked;
   }

} // end of class Spinach

?>
https://ideone.com/aLpfBh
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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