1--TEST-- 2SPL: Iterator aggregating inner iterator's methods 3--FILE-- 4<?php 5 6class NumericArrayIterator implements Iterator 7{ 8 protected $a; 9 protected $i = 0; 10 11 public function __construct($a) 12 { 13 echo __METHOD__ . "\n"; 14 $this->a = $a; 15 } 16 17 public function rewind() 18 { 19 echo __METHOD__ . "\n"; 20 $this->i = 0; 21 } 22 23 public function valid() 24 { 25 $ret = $this->i < count($this->a); 26 echo __METHOD__ . '(' . ($ret ? 'true' : 'false') . ")\n"; 27 return $ret; 28 } 29 30 public function key() 31 { 32 echo __METHOD__ . "\n"; 33 return $this->i; 34 } 35 36 public function current() 37 { 38 echo __METHOD__ . "\n"; 39 return $this->a[$this->i]; 40 } 41 42 public function next() 43 { 44 echo __METHOD__ . "\n"; 45 $this->i++; 46 } 47 48 public function greaterThan($comp) 49 { 50 echo get_class($this) . '::' . __FUNCTION__ . '(' . $comp . ")\n"; 51 return $this->current() > $comp; 52 } 53} 54 55class SeekableNumericArrayIterator extends NumericArrayIterator implements SeekableIterator 56{ 57 public function seek($index) 58 { 59 if ($index < count($this->a)) { 60 $this->i = $index; 61 } 62 echo __METHOD__ . '(' . $index . ")\n"; 63 } 64} 65 66$a = array(1, 2, 3, 4, 5); 67$it = new LimitIterator(new NumericArrayIterator($a), 1, 3); 68foreach ($it as $v) 69{ 70 print $v . ' is ' . ($it->greaterThan(2) ? 'greater than 2' : 'less than or equal 2') . "\n"; 71} 72 73echo "===SEEKABLE===\n"; 74$a = array(1, 2, 3, 4, 5); 75$it = new LimitIterator(new SeekableNumericArrayIterator($a), 1, 3); 76foreach($it as $v) 77{ 78 print $v . ' is ' . ($it->greaterThan(2) ? 'greater than 2' : 'less than or equal 2') . "\n"; 79} 80 81echo "===STACKED===\n"; 82echo "Shows '2 is greater than 2' because the test is actually done with the current value which is 3.\n"; 83$a = array(1, 2, 3, 4, 5); 84$it = new CachingIterator(new LimitIterator(new SeekableNumericArrayIterator($a), 1, 3)); 85foreach($it as $v) 86{ 87 print $v . ' is ' . ($it->greaterThan(2) ? 'greater than 2' : 'less than or equal 2') . "\n"; 88} 89 90?> 91===DONE=== 92<?php exit(0); ?> 93--EXPECT-- 94NumericArrayIterator::__construct 95NumericArrayIterator::rewind 96NumericArrayIterator::valid(true) 97NumericArrayIterator::next 98NumericArrayIterator::valid(true) 99NumericArrayIterator::valid(true) 100NumericArrayIterator::current 101NumericArrayIterator::key 102NumericArrayIterator::greaterThan(2) 103NumericArrayIterator::current 1042 is less than or equal 2 105NumericArrayIterator::next 106NumericArrayIterator::valid(true) 107NumericArrayIterator::current 108NumericArrayIterator::key 109NumericArrayIterator::greaterThan(2) 110NumericArrayIterator::current 1113 is greater than 2 112NumericArrayIterator::next 113NumericArrayIterator::valid(true) 114NumericArrayIterator::current 115NumericArrayIterator::key 116NumericArrayIterator::greaterThan(2) 117NumericArrayIterator::current 1184 is greater than 2 119NumericArrayIterator::next 120===SEEKABLE=== 121NumericArrayIterator::__construct 122NumericArrayIterator::rewind 123SeekableNumericArrayIterator::seek(1) 124NumericArrayIterator::valid(true) 125NumericArrayIterator::current 126NumericArrayIterator::key 127SeekableNumericArrayIterator::greaterThan(2) 128NumericArrayIterator::current 1292 is less than or equal 2 130NumericArrayIterator::next 131NumericArrayIterator::valid(true) 132NumericArrayIterator::current 133NumericArrayIterator::key 134SeekableNumericArrayIterator::greaterThan(2) 135NumericArrayIterator::current 1363 is greater than 2 137NumericArrayIterator::next 138NumericArrayIterator::valid(true) 139NumericArrayIterator::current 140NumericArrayIterator::key 141SeekableNumericArrayIterator::greaterThan(2) 142NumericArrayIterator::current 1434 is greater than 2 144NumericArrayIterator::next 145===STACKED=== 146Shows '2 is greater than 2' because the test is actually done with the current value which is 3. 147NumericArrayIterator::__construct 148NumericArrayIterator::rewind 149SeekableNumericArrayIterator::seek(1) 150NumericArrayIterator::valid(true) 151NumericArrayIterator::current 152NumericArrayIterator::key 153NumericArrayIterator::next 154NumericArrayIterator::valid(true) 155NumericArrayIterator::current 156NumericArrayIterator::key 157SeekableNumericArrayIterator::greaterThan(2) 158NumericArrayIterator::current 1592 is greater than 2 160NumericArrayIterator::next 161NumericArrayIterator::valid(true) 162NumericArrayIterator::current 163NumericArrayIterator::key 164SeekableNumericArrayIterator::greaterThan(2) 165NumericArrayIterator::current 1663 is greater than 2 167NumericArrayIterator::next 168SeekableNumericArrayIterator::greaterThan(2) 169NumericArrayIterator::current 1704 is greater than 2 171===DONE=== 172
