Annotation of embedaddon/php/tests/lang/foreachLoopIteratorAggregate.001.phpt, revision 1.1
1.1 ! misho 1: --TEST--
! 2: foreach with iteratorAggregate
! 3: --FILE--
! 4: <?php
! 5: class EnglishMealIterator implements Iterator {
! 6: private $pos=0;
! 7: private $myContent=array("breakfast", "dinner", "tea");
! 8:
! 9: public function valid() {
! 10: global $indent;
! 11: echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
! 12: return $this->pos < count($this->myContent);
! 13: }
! 14:
! 15: public function next() {
! 16: global $indent;
! 17: echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
! 18: $this->pos++;
! 19: }
! 20:
! 21: public function rewind() {
! 22: global $indent;
! 23: echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
! 24: $this->pos=0;
! 25: }
! 26:
! 27: public function current() {
! 28: global $indent;
! 29: echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
! 30: return $this->myContent[$this->pos];
! 31: }
! 32:
! 33: public function key() {
! 34: global $indent;
! 35: echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
! 36: return "meal " . $this->pos;
! 37: }
! 38:
! 39: }
! 40:
! 41: class FrenchMealIterator implements Iterator {
! 42: private $pos=0;
! 43: private $myContent=array("petit dejeuner", "dejeuner", "gouter", "dinner");
! 44:
! 45: public function valid() {
! 46: global $indent;
! 47: echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
! 48: return $this->pos < count($this->myContent);
! 49: }
! 50:
! 51: public function next() {
! 52: global $indent;
! 53: echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
! 54: $this->pos++;
! 55: }
! 56:
! 57: public function rewind() {
! 58: global $indent;
! 59: echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
! 60: $this->pos=0;
! 61: }
! 62:
! 63: public function current() {
! 64: global $indent;
! 65: echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
! 66: return $this->myContent[$this->pos];
! 67: }
! 68:
! 69: public function key() {
! 70: global $indent;
! 71: echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
! 72: return "meal " . $this->pos;
! 73: }
! 74:
! 75: }
! 76:
! 77:
! 78: Class EuropeanMeals implements IteratorAggregate {
! 79:
! 80: private $storedEnglishMealIterator;
! 81: private $storedFrenchMealIterator;
! 82:
! 83: public function __construct() {
! 84: $this->storedEnglishMealIterator = new EnglishMealIterator;
! 85: $this->storedFrenchMealIterator = new FrenchMealIterator;
! 86: }
! 87:
! 88: public function getIterator() {
! 89: global $indent;
! 90: echo "$indent--> " . __METHOD__ . "\n";
! 91:
! 92: //Alternate between English and French meals
! 93: static $i = 0;
! 94: if ($i++%2 == 0) {
! 95: return $this->storedEnglishMealIterator;
! 96: } else {
! 97: return $this->storedFrenchMealIterator;
! 98: }
! 99: }
! 100:
! 101: }
! 102:
! 103: $f = new EuropeanMeals;
! 104: var_dump($f);
! 105:
! 106: echo "-----( Simple iteration 1: )-----\n";
! 107: foreach ($f as $k=>$v) {
! 108: echo "$k => $v\n";
! 109: }
! 110: echo "-----( Simple iteration 2: )-----\n";
! 111: foreach ($f as $k=>$v) {
! 112: echo "$k => $v\n";
! 113: }
! 114:
! 115:
! 116: $indent = " ";
! 117: echo "\n\n\n-----( Nested iteration: )-----\n";
! 118: $count=1;
! 119: foreach ($f as $k=>$v) {
! 120: echo "\nTop level " . $count++ . ": \n";
! 121: echo "$k => $v\n";
! 122: $indent = " ";
! 123: foreach ($f as $k=>$v) {
! 124: echo " $k => $v\n";
! 125: }
! 126: $indent = " ";
! 127: }
! 128:
! 129:
! 130: ?>
! 131: ===DONE===
! 132: --EXPECTF--
! 133: object(EuropeanMeals)#%d (2) {
! 134: ["storedEnglishMealIterator":"EuropeanMeals":private]=>
! 135: object(EnglishMealIterator)#%d (2) {
! 136: ["pos":"EnglishMealIterator":private]=>
! 137: int(0)
! 138: ["myContent":"EnglishMealIterator":private]=>
! 139: array(3) {
! 140: [0]=>
! 141: string(9) "breakfast"
! 142: [1]=>
! 143: string(6) "dinner"
! 144: [2]=>
! 145: string(3) "tea"
! 146: }
! 147: }
! 148: ["storedFrenchMealIterator":"EuropeanMeals":private]=>
! 149: object(FrenchMealIterator)#%d (2) {
! 150: ["pos":"FrenchMealIterator":private]=>
! 151: int(0)
! 152: ["myContent":"FrenchMealIterator":private]=>
! 153: array(4) {
! 154: [0]=>
! 155: string(14) "petit dejeuner"
! 156: [1]=>
! 157: string(8) "dejeuner"
! 158: [2]=>
! 159: string(6) "gouter"
! 160: [3]=>
! 161: string(6) "dinner"
! 162: }
! 163: }
! 164: }
! 165: -----( Simple iteration 1: )-----
! 166: --> EuropeanMeals::getIterator
! 167: --> EnglishMealIterator::rewind (0)
! 168: --> EnglishMealIterator::valid (0)
! 169: --> EnglishMealIterator::current (0)
! 170: --> EnglishMealIterator::key (0)
! 171: meal 0 => breakfast
! 172: --> EnglishMealIterator::next (0)
! 173: --> EnglishMealIterator::valid (1)
! 174: --> EnglishMealIterator::current (1)
! 175: --> EnglishMealIterator::key (1)
! 176: meal 1 => dinner
! 177: --> EnglishMealIterator::next (1)
! 178: --> EnglishMealIterator::valid (2)
! 179: --> EnglishMealIterator::current (2)
! 180: --> EnglishMealIterator::key (2)
! 181: meal 2 => tea
! 182: --> EnglishMealIterator::next (2)
! 183: --> EnglishMealIterator::valid (3)
! 184: -----( Simple iteration 2: )-----
! 185: --> EuropeanMeals::getIterator
! 186: --> FrenchMealIterator::rewind (0)
! 187: --> FrenchMealIterator::valid (0)
! 188: --> FrenchMealIterator::current (0)
! 189: --> FrenchMealIterator::key (0)
! 190: meal 0 => petit dejeuner
! 191: --> FrenchMealIterator::next (0)
! 192: --> FrenchMealIterator::valid (1)
! 193: --> FrenchMealIterator::current (1)
! 194: --> FrenchMealIterator::key (1)
! 195: meal 1 => dejeuner
! 196: --> FrenchMealIterator::next (1)
! 197: --> FrenchMealIterator::valid (2)
! 198: --> FrenchMealIterator::current (2)
! 199: --> FrenchMealIterator::key (2)
! 200: meal 2 => gouter
! 201: --> FrenchMealIterator::next (2)
! 202: --> FrenchMealIterator::valid (3)
! 203: --> FrenchMealIterator::current (3)
! 204: --> FrenchMealIterator::key (3)
! 205: meal 3 => dinner
! 206: --> FrenchMealIterator::next (3)
! 207: --> FrenchMealIterator::valid (4)
! 208:
! 209:
! 210:
! 211: -----( Nested iteration: )-----
! 212: --> EuropeanMeals::getIterator
! 213: --> EnglishMealIterator::rewind (3)
! 214: --> EnglishMealIterator::valid (0)
! 215: --> EnglishMealIterator::current (0)
! 216: --> EnglishMealIterator::key (0)
! 217:
! 218: Top level 1:
! 219: meal 0 => breakfast
! 220: --> EuropeanMeals::getIterator
! 221: --> FrenchMealIterator::rewind (4)
! 222: --> FrenchMealIterator::valid (0)
! 223: --> FrenchMealIterator::current (0)
! 224: --> FrenchMealIterator::key (0)
! 225: meal 0 => petit dejeuner
! 226: --> FrenchMealIterator::next (0)
! 227: --> FrenchMealIterator::valid (1)
! 228: --> FrenchMealIterator::current (1)
! 229: --> FrenchMealIterator::key (1)
! 230: meal 1 => dejeuner
! 231: --> FrenchMealIterator::next (1)
! 232: --> FrenchMealIterator::valid (2)
! 233: --> FrenchMealIterator::current (2)
! 234: --> FrenchMealIterator::key (2)
! 235: meal 2 => gouter
! 236: --> FrenchMealIterator::next (2)
! 237: --> FrenchMealIterator::valid (3)
! 238: --> FrenchMealIterator::current (3)
! 239: --> FrenchMealIterator::key (3)
! 240: meal 3 => dinner
! 241: --> FrenchMealIterator::next (3)
! 242: --> FrenchMealIterator::valid (4)
! 243: --> EnglishMealIterator::next (0)
! 244: --> EnglishMealIterator::valid (1)
! 245: --> EnglishMealIterator::current (1)
! 246: --> EnglishMealIterator::key (1)
! 247:
! 248: Top level 2:
! 249: meal 1 => dinner
! 250: --> EuropeanMeals::getIterator
! 251: --> EnglishMealIterator::rewind (1)
! 252: --> EnglishMealIterator::valid (0)
! 253: --> EnglishMealIterator::current (0)
! 254: --> EnglishMealIterator::key (0)
! 255: meal 0 => breakfast
! 256: --> EnglishMealIterator::next (0)
! 257: --> EnglishMealIterator::valid (1)
! 258: --> EnglishMealIterator::current (1)
! 259: --> EnglishMealIterator::key (1)
! 260: meal 1 => dinner
! 261: --> EnglishMealIterator::next (1)
! 262: --> EnglishMealIterator::valid (2)
! 263: --> EnglishMealIterator::current (2)
! 264: --> EnglishMealIterator::key (2)
! 265: meal 2 => tea
! 266: --> EnglishMealIterator::next (2)
! 267: --> EnglishMealIterator::valid (3)
! 268: --> EnglishMealIterator::next (3)
! 269: --> EnglishMealIterator::valid (4)
! 270: ===DONE===
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