run
print function_exists('test1')
@ function test1($x){error_log($x);return $x+1;}
print function_exists('test1')
@ $eval1=test1(4)
print $eval1
print class_exists('test2')
<?php
class test2 {
  public $a;
  private $b;
  public function ab() {
    return $this->a . ":" . $this->b;
  }
  public function callCls() {
    $obj = new cls();
    return $obj->meth($this);
  }
  private function seven() {
    return 7;
  }
}
?>
print class_exists('test2')
set bac off
@ $eval2 = new test2()
@ $eval2->a = 3
@ $eval2->b = 4
print $eval2->ab()
set bac on
@ $eval2->b = 4
print $eval2->ab()
break eval1.php:12
print $eval2->callCls()
break clear all
set bac off
@ $this->pub = 21
@ $this->pri = 22
next
@ $this->pub = $x->seven()
set bac on
@ $this->pub = $x->seven()
continue
quit