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php

    1: --TEST--
    2: ZE2 iterators and exceptions
    3: --FILE--
    4: <?php
    5: class Test implements Iterator
    6: {
    7: 	public $arr = array(1, 2, 3);
    8: 	public $x = 0;
    9: 	
   10: 	public function rewind()    { if ($this->x == 0) throw new Exception(__METHOD__); reset($this->arr); }
   11: 	public function current()   { if ($this->x == 1) throw new Exception(__METHOD__); return current($this->arr); }
   12: 	public function key()       { if ($this->x == 2) throw new Exception(__METHOD__); return key($this->arr); }
   13: 	public function next()      { if ($this->x == 3) throw new Exception(__METHOD__); next($this->arr); }
   14: 	public function valid()     { if ($this->x == 4) throw new Exception(__METHOD__); return (key($this->arr) !== NULL); }
   15: }
   16: 
   17: $t = new Test();
   18: 
   19: while($t->x < 5)
   20: {
   21: 	try
   22: 	{
   23: 	    foreach($t as $k => $v)
   24: 	    {
   25: 	        echo "Current\n";
   26: 	    }
   27: 	}
   28: 	catch(Exception $e)
   29: 	{
   30: 	    echo "Caught in " . $e->getMessage() . "()\n";
   31: 	}
   32: 	$t->x++;
   33: }
   34: ?>
   35: ===DONE===
   36: --EXPECT--
   37: Caught in Test::rewind()
   38: Caught in Test::current()
   39: Caught in Test::key()
   40: Current
   41: Caught in Test::next()
   42: Caught in Test::valid()
   43: ===DONE===