1--TEST-- 2SPL: SeekableIterator and string keys 3--FILE-- 4<?php 5 6class NumericArrayIterator implements Iterator 7{ 8 protected $a; 9 protected $i; 10 11 public function __construct($a) 12 { 13 echo __METHOD__ . "\n"; 14 $this->a = $a; 15 } 16 17 public function rewind(): void 18 { 19 echo __METHOD__ . "\n"; 20 $this->i = 0; 21 } 22 23 public function valid(): bool 24 { 25 $ret = $this->i < count($this->a); 26 echo __METHOD__ . '(' . ($ret ? 'true' : 'false') . ")\n"; 27 return $ret; 28 } 29 30 public function key(): mixed 31 { 32 echo __METHOD__ . "\n"; 33 return $this->i; 34 } 35 36 public function current(): mixed 37 { 38 echo __METHOD__ . "\n"; 39 return $this->a[$this->i]; 40 } 41 42 public function next(): void 43 { 44 echo __METHOD__ . "\n"; 45 $this->i++; 46 } 47} 48 49class SeekableNumericArrayIterator extends NumericArrayIterator implements SeekableIterator 50{ 51 public function seek($index): void 52 { 53 if ($index < count($this->a)) { 54 $this->i = $index; 55 } 56 echo __METHOD__ . '(' . $index . ")\n"; 57 } 58} 59 60$a = array(1, 2, 3, 4, 5); 61foreach (new LimitIterator(new NumericArrayIterator($a), 1, 3) as $v) 62{ 63 print "$v\n"; 64} 65 66echo "===SEEKABLE===\n"; 67$a = array(1, 2, 3, 4, 5); 68foreach(new LimitIterator(new SeekableNumericArrayIterator($a), 1, 3) as $v) 69{ 70 print "$v\n"; 71} 72 73echo "===SEEKING===\n"; 74$a = array(1, 2, 3, 4, 5); 75$l = new LimitIterator(new SeekableNumericArrayIterator($a)); 76for($i = 1; $i < 4; $i++) 77{ 78 $l->seek($i); 79 print $l->current() . "\n"; 80} 81 82?> 83--EXPECT-- 84NumericArrayIterator::__construct 85NumericArrayIterator::rewind 86NumericArrayIterator::valid(true) 87NumericArrayIterator::next 88NumericArrayIterator::valid(true) 89NumericArrayIterator::valid(true) 90NumericArrayIterator::current 91NumericArrayIterator::key 922 93NumericArrayIterator::next 94NumericArrayIterator::valid(true) 95NumericArrayIterator::current 96NumericArrayIterator::key 973 98NumericArrayIterator::next 99NumericArrayIterator::valid(true) 100NumericArrayIterator::current 101NumericArrayIterator::key 1024 103NumericArrayIterator::next 104===SEEKABLE=== 105NumericArrayIterator::__construct 106NumericArrayIterator::rewind 107SeekableNumericArrayIterator::seek(1) 108NumericArrayIterator::valid(true) 109NumericArrayIterator::current 110NumericArrayIterator::key 1112 112NumericArrayIterator::next 113NumericArrayIterator::valid(true) 114NumericArrayIterator::current 115NumericArrayIterator::key 1163 117NumericArrayIterator::next 118NumericArrayIterator::valid(true) 119NumericArrayIterator::current 120NumericArrayIterator::key 1214 122NumericArrayIterator::next 123===SEEKING=== 124NumericArrayIterator::__construct 125SeekableNumericArrayIterator::seek(1) 126NumericArrayIterator::valid(true) 127NumericArrayIterator::current 128NumericArrayIterator::key 1292 130SeekableNumericArrayIterator::seek(2) 131NumericArrayIterator::valid(true) 132NumericArrayIterator::current 133NumericArrayIterator::key 1343 135SeekableNumericArrayIterator::seek(3) 136NumericArrayIterator::valid(true) 137NumericArrayIterator::current 138NumericArrayIterator::key 1394 140
