1--TEST-- 2SPL: RecursiveIteratorIterator and setMaxDepth() 3--FILE-- 4<?php 5 6$ar = array(1, 2, array(31, 32, array(331, array(3321, array(33221)))), 4); 7 8$it = new RecursiveIteratorIterator(new RecursiveArrayIterator($ar)); 9 10echo "===?===\n"; 11var_dump($it->getMaxDepth()); 12foreach($it as $v) echo $it->getDepth() . ": $v\n"; 13 14echo "===2===\n"; 15$it->setMaxDepth(2); 16var_dump($it->getMaxDepth()); 17foreach($it as $v) echo $it->getDepth() . ": $v\n"; 18 19echo "===X===\n"; 20$it->setMaxDepth(); 21var_dump($it->getMaxDepth()); 22foreach($it as $v) echo $it->getDepth() . ": $v\n"; 23 24echo "===3===\n"; 25$it->setMaxDepth(3); 26var_dump($it->getMaxDepth()); 27foreach($it as $v) echo $it->getDepth() . ": $v\n"; 28 29echo "===5===\n"; 30$it->setMaxDepth(5); 31var_dump($it->getMaxDepth()); 32foreach($it as $v) echo $it->getDepth() . ": $v\n"; 33 34echo "===0===\n"; 35$it->setMaxDepth(0); 36var_dump($it->getMaxDepth()); 37foreach($it as $v) echo $it->getDepth() . ": $v\n"; 38 39echo "===-1===\n"; 40$it->setMaxDepth(-1); 41var_dump($it->getMaxDepth()); 42$it->setMaxDepth(4); 43try { 44 $it->setMaxDepth(-2); 45} catch(\ValueError $e) { 46 echo $e->getMessage() . \PHP_EOL; 47} 48var_dump($it->getMaxDepth()); 49?> 50--EXPECT-- 51===?=== 52bool(false) 530: 1 540: 2 551: 31 561: 32 572: 331 583: 3321 594: 33221 600: 4 61===2=== 62int(2) 630: 1 640: 2 651: 31 661: 32 672: 331 680: 4 69===X=== 70bool(false) 710: 1 720: 2 731: 31 741: 32 752: 331 763: 3321 774: 33221 780: 4 79===3=== 80int(3) 810: 1 820: 2 831: 31 841: 32 852: 331 863: 3321 870: 4 88===5=== 89int(5) 900: 1 910: 2 921: 31 931: 32 942: 331 953: 3321 964: 33221 970: 4 98===0=== 99int(0) 1000: 1 1010: 2 1020: 4 103===-1=== 104bool(false) 105RecursiveIteratorIterator::setMaxDepth(): Argument #1 ($maxDepth) must be greater than or equal to -1 106int(4) 107
