When you unset the item from array in foreach, all works as expected<\/p>\n
$array = [1,2,3,4];\r\nforeach($array as $key => $value) {\r\n if($value === 2) {\r\n unset($array[$key]);\r\n continue;\r\n }\r\n echo \"$value \";\r\n}<\/pre>\nWill return following:<\/p>\n
1 3 4<\/pre>\nWhen you want to do the same with ArrayObject, you would expect exactly the same behaviour. Unfortunately, it is not the case.<\/p>\n
class MainList extends \\ArrayObject {}\r\n$arrayListObject = new MainList([1,2,3,4]);\r\nforeach($arrayListObject as $key => $value) {\r\n if($value === 2) {\r\n unset($arrayListObject[$key]);\r\n continue;\r\n }\r\n echo \"$value \";\r\n}<\/pre>\nWill return following:<\/p>\n
1 4<\/pre>\nSee that the number 3 is missing in the response!!!<\/strong>
\nThe reason for this is that the ArrayObject is behaving like object (not as an array) when looping through foreach.<\/p>\nThis could be very confusing when you expect that that the foreach will process all the items.<\/p>\n
The best option is to process it via<\/p>\n
class MainList extends \\ArrayObject {}\r\n$arrayListObject = new MainList([1,2,3,4]);\r\nforeach($arrayListObject->getArrayCopy() as $key => $value) {\r\n if($value === 2) {\r\n unset($arrayListObject[$key]);\r\n continue;\r\n }\r\n echo \"$value \";\r\n}<\/pre>\nWill return following (as expected):<\/p>\n
1 3 4<\/pre>\n","protected":false},"excerpt":{"rendered":"When you unset the item from array in foreach, all works as expected $array = [1,2,3,4]; foreach($array as $key => $value) { if($value === 2) { unset($array[$key]); continue; } echo “$value “; } Will return following: 1 3 4 When you want to do the same with ArrayObject, you would expect exactly the same behaviour. … <\/p>\n