1--TEST-- 2SPL: LimitIterator and backward seeking 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 valid(): bool 18 { 19 echo __METHOD__ . "\n"; 20 return $this->i < count($this->a); 21 } 22 23 public function rewind(): void 24 { 25 echo __METHOD__ . "\n"; 26 $this->i = 0; 27 } 28 29 public function key(): mixed 30 { 31 echo __METHOD__ . "\n"; 32 return $this->i; 33 } 34 35 public function current(): mixed 36 { 37 echo __METHOD__ . "\n"; 38 return $this->a[$this->i]; 39 } 40 41 public function next(): void 42 { 43 echo __METHOD__ . "\n"; 44 $this->i++; 45 } 46} 47 48$it = new LimitIterator(new NumericArrayIterator(array(12, 25, 42, 56))); 49 50foreach($it as $k => $v) 51{ 52 var_dump($k); 53 var_dump($v); 54} 55 56echo "===SEEK===\n"; 57 58$it->seek(2); 59 60echo "===LOOP===\n"; 61 62foreach(new NoRewindIterator($it) as $k => $v) 63{ 64 var_dump($k); 65 var_dump($v); 66} 67 68?> 69--EXPECT-- 70NumericArrayIterator::__construct 71NumericArrayIterator::rewind 72NumericArrayIterator::valid 73NumericArrayIterator::valid 74NumericArrayIterator::current 75NumericArrayIterator::key 76int(0) 77int(12) 78NumericArrayIterator::next 79NumericArrayIterator::valid 80NumericArrayIterator::current 81NumericArrayIterator::key 82int(1) 83int(25) 84NumericArrayIterator::next 85NumericArrayIterator::valid 86NumericArrayIterator::current 87NumericArrayIterator::key 88int(2) 89int(42) 90NumericArrayIterator::next 91NumericArrayIterator::valid 92NumericArrayIterator::current 93NumericArrayIterator::key 94int(3) 95int(56) 96NumericArrayIterator::next 97NumericArrayIterator::valid 98===SEEK=== 99NumericArrayIterator::rewind 100NumericArrayIterator::valid 101NumericArrayIterator::next 102NumericArrayIterator::valid 103NumericArrayIterator::next 104NumericArrayIterator::valid 105NumericArrayIterator::valid 106NumericArrayIterator::current 107NumericArrayIterator::key 108===LOOP=== 109int(2) 110int(42) 111NumericArrayIterator::next 112NumericArrayIterator::valid 113NumericArrayIterator::current 114NumericArrayIterator::key 115int(3) 116int(56) 117NumericArrayIterator::next 118NumericArrayIterator::valid 119
