注意:未定义的偏移量:NESTED ARRAY上的0 [英] Notice: Undefined offset: 0 on NESTED ARRAY
本文介绍了注意:未定义的偏移量:NESTED ARRAY上的0的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在尝试创建一个if statement using isset，当数组内没有任何内容时，它会进行过滤.该数组包含[0]-[16]变量，有时大约包含[11]，有时不包含任何变量.当我回声
I am trying to create an if statement using isset which filters when there is nothing inside the array. The array contains [0]-[16] variables roughly sometimes [11] and sometimes nothing. When I echo the
echo $car['Images'][0]['ImageURI'];
如果JSON中有一个变量，它将返回:
If there is a variable in the JSON it returns:
https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=1&Width=960
如果里面什么也没有，那么我会检索:
If there is nothing inside then I retrieve:
Notice: Undefined offset: 0 in /customers/8/9/9/testsite.agency/httpd.www/api/wp-content/themes/divi-child/functions.php on line 94
我希望它可以确定里面是否没有东西，而不会出现错误/通知.
I would like it so that it will determine if nothing is inside continue, without errors / notices.
我的代码:
// Response = to JSON decode this allows us to decode the large response
$response = json_decode($json_data, true);
// Using a foreach to access Nested Array
foreach($response as $index => $car)
{
$car['BasicPrice'];
$car['BodyStyle']['BodyStyle'];
$car['Colour'];
$car['EngineNumber'];
$car['EngineSize'];
$car['FuelType']['FuelType'];
$car['HasServiceHistory'];
// To access the images we have to access a nested array within a nested array.
// This if statement stops the code reading empty car array and throwing an Undefined Index: 0
if( isset($car['Images']) ) {
//it exists
echo $car['Images'][0]['ImageURI'];
echo $car['Images'][1]['ImageURI'];
echo $car['Images'][2]['ImageURI'];
echo $car['Images'][3]['ImageURI'];
echo $car['Images'][4]['ImageURI'];
echo $car['Images'][5]['ImageURI'];
echo $car['Images'][6]['ImageURI'];
echo $car['Images'][7]['ImageURI'];
echo $car['Images'][8]['ImageURI'];
echo $car['Images'][9]['ImageURI'];
echo $car['Images'][10]['ImageURI'];
echo $car['Images'][11]['ImageURI'];
echo $car['Images'][12]['ImageURI'];
echo $car['Images'][13]['ImageURI'];
echo $car['Images'][14]['ImageURI'];
echo $car['Images'][15]['ImageURI'];
echo $car['Images'][16]['ImageURI'];
echo "<br>";echo "<br>";echo "<br>";
} else{
// some error messaage
return false;
}
$car['IsNew'];
$car['InternetPrice'];
$car['IsReserved'];
$car['Make']['Make'];
$car['Model']['Model'];
$car['Odometer'];
$car['PhotoCount'];
$car['PreviousOwners'];
$car['RegistrationNumber'];
$car['RetailPrice'];
$car['Specification']['Doors'];
$car['StockNumber'];
$car['Transmission']['Transmission'];
}
// If Response ie. our json data is empty return false.
if (!is_array($response) || empty($response)) {
return false;
}
var_dump($ response);一辆$ car中的一辆是:
A var_dump($response); of one $car is:
array(82){
[
0
] => array(42) {
[
"BasicPrice"
] => float(4995.83) [
"BodyStyle"
] => array(2) {
[
"BodyStyle"
] => string(4) "3 DR" [
"BodyStyle_UID"
] => string(36) "4cf50fe2-8c3f-e611-80cb-0a94ef0355af"
} [
"Colour"
] => string(12) "Red 'n' Roll" [
"DaysInStock"
] => int(1033) [
"DaysInStockGroup"
] => int(1033) [
"Discount"
] => float(0) [
"EngineNumber"
] => string(15) "B12XER-19MV2339" [
"EngineSize"
] => int(1229) [
"EstimatedDeliveryDate"
] => string(19) "2016-11-04T00:00:00 " [" FuelType"
] => array(2) {
[
"FuelType"
] => string(6) "Petrol" [
"FuelType_UID"
] => string(36) "9cd0d601-bb1f-409d-b04d-4255ff47dc85"
} [
"HasServiceHistory"
] => bool(false) [
"Images"
] => array(16) {
[
0
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(1) [
"Image_UID"
] => string(36) "2088e32e-d46a-42c2-8412-3802743bcc06" [
"ImageURI"
] => string(166) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=1&Width=960" [
"ImageWidth"
] => int(960)
} [
1
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(2) [
"Image_UID"
] => string(36) "590cdfa2-d791-4414-bbb4-e5fbe7a5ac80" [
"ImageURI"
] => string(166) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=2&Width=960" [
"ImageWidth"
] => int(960)
} [
2
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(3) [
"Image_UID"
] => string(36) "038674d1-f32e-40ac-90bf-fad4d3b25e7f" [
"ImageURI"
] => string(166) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=3&Width=960" [
"ImageWidth"
] => int(960)
} [
3
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(4) [
"Image_UID"
] => string(36) "9e4d36b0-7e9d-4159-9315-548e30835aa4" [
"ImageURI"
] => string(166) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=4&Width=960" [
"ImageWidth"
] => int(960)
} [
4
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(5) [
"Image_UID"
] => string(36) "c3ad8b52-df16-4925-b8f2-6434a1d3ece6" [
"ImageURI"
] => string(166) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=5&Width=960" [
"ImageWidth"
] => int(960)
} [
5
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(6) [
"Image_UID"
] => string(36) "b5e66c41-a76e-4cd2-a535-623715e19961" [
"ImageURI"
] => string(166) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=6&Width=960" [
"ImageWidth"
] => int(960)
} [
6
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(7) [
"Image_UID"
] => string(36) "6ce8cb63-4cee-4451-abd6-abc367d9f1d2" [
"ImageURI"
] => string(166) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=7&Width=960" [
"ImageWidth"
] => int(960)
} [
7
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(8) [
"Image_UID"
] => string(36) "7b5ecc82-b8ea-4af4-85d6-1ab13c527edf" [
"ImageURI"
] => string(166) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=8&Width=960" [
"ImageWidth"
] => int(960)
} [
8
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(9) [
"Image_UID"
] => string(36) "a1b2dae3-342f-4917-b7d8-6d9135bb8966" [
"ImageURI"
] => string(166) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=9&Width=960" [
"ImageWidth"
] => int(960)
} [
9
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(10) [
"Image_UID"
] => string(36) "a6e1fce8-7bf9-4570-898b-91aa368c889d" [
"ImageURI"
] => string(167) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=10&Width=960" [
"ImageWidth"
] => int(960)
} [
10
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(11) [
"Image_UID"
] => string(36) "0587afe6-4d95-4ce3-b571-0c1bc894516f" [
"ImageURI"
] => string(167) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=11&Width=960" [
"ImageWidth"
] => int(960)
} [
11
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(12) [
"Image_UID"
] => string(36) "5b4713c8-37c9-4702-937c-4938c95bbee9" [
"ImageURI"
] => string(167) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=12&Width=960" [
"ImageWidth"
] => int(960)
} [
12
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(13) [
"Image_UID"
] => string(36) "6c6a83d9-0782-42c6-a1fe-2d14272c7832" [
"ImageURI"
] => string(167) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=13&Width=960" [
"ImageWidth"
] => int(960)
} [
13
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(14) [
"Image_UID"
] => string(36) "6e8a2171-e85a-4afd-a4fb-e70eeab38d10" [
"ImageURI"
] => string(167) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=14&Width=960" [
"ImageWidth"
] => int(960)
} [
14
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(15) [
"Image_UID"
] => string(36) "f60e84ab-91bf-494d-9a54-0ad27615135a" [
"ImageURI"
] => string(167) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=15&Width=960" [
"ImageWidth"
] => int(960)
} [
15
] => array(5) {
[
"Entity_UID"
] => string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af" [
"ImageNumber"
] => int(16) [
"Image_UID"
] => string(36) "bfe311ca-4a62-4518-b27f-4d1473386741" [
"ImageURI"
] => string(167) "https://vehiclestock-public.pinnacledms.net/ViewVehiclePhoto.aspx?BUID=a3db2a66-b4fb-4ac2-a78a-0f042aab50af&VUID=8be4d43d-e3a4-e611-80cf-0a94ef0355af&Rank=16&Width=960" [
"ImageWidth"
] => int(960)
}
} [
"Interior"
] => array(2) {
[
"Interior"
] => string(0) "" [
"Interior_UID"
] => string(36) "05f50fe2-8c3f-e611-80cb-0a94ef0355af"
} [
"IsNew"
] => bool(false) [
"InternetPrice"
] => float(0) [
"IsQualifying"
] => bool(true) [
"IsReserved"
] => bool(false) [
"Location"
] => string(9) "Autospray" [
"Make"
] => array(3) {
[
"FranchiseModel"
] => NULL [
"Make"
] => string(8) "Vauxhall" [
"Make_UID"
] => string(36) "ac84ccae-882d-e611-80ca-0a94ef0355af"
} [
"ManufacturerRecommendedRetailPrice"
] => float(0) [
"Model"
] => array(3) {
[
"Make_UID"
] => string(36) "ac84ccae-882d-e611-80ca-0a94ef0355af" [
"Model"
] => string(4) "Adam" [
"Model_UID"
] => string(36) "cb34d5c0-5c3f-e611-80cb-0a94ef0355af"
} [
"Odometer"
] => int(13582) [
"Options"
] => array(0) {
} [
"OrganisationalUnit"
] => array(6) {
[
"Address"
] => array(7) {
[
"Address1"
] => string(17) "Blackhouse Circle" [
"Address2"
] => string(28) "Blackhouse Industrial Estate" [
"Address3"
] => string(0) "" [
"Country"
] => NULL [
"County"
] => string(8) "Aberdeen" [
"PostCode"
] => string(8) "AB42 1BN" [
"PostTown"
] => string(9) "Peterhead"
} [
"Description"
] => string(22) "Gillanders Motors Ltd." [
"EmailAddress"
] => string(22) "email@gillanders.co.uk" [
"OrganisationalUnit_UID"
] => string(36) "a3db2a66-b4fb-4ac2-a78a-0f042aab50af" [
"ParentOrganisationalUnit_UID"
] => string(36) "51a9312b-1462-4b7c-aee3-319d6d86ecec" [
"Telephone"
] => string(12) "01779 479777"
} [
"PhotoCount"
] => int(16) [
"PhysicalLocation"
] => array(5) {
[
"DealerCode"
] => string(0) "" [
"Description"
] => string(22) "Gillanders Motors Ltd." [
"LocationDescription"
] => string(9) "Autospray" [
"OrganisationalUnit"
] => array(6) {
[
"Address"
] => array(7) {
[
"Address1"
] => string(17) "Blackhouse Circle" [
"Address2"
] => string(28) "Blackhouse Industrial Estate" [
"Address3"
] => string(0) "" [
"Country"
] => NULL [
"County"
] => string(8) "Aberdeen" [
"PostCode"
] => string(8) "AB42 1BN" [
"PostTown"
] => string(9) "Peterhead"
} [
"Description"
] => string(22) "Gillanders Motors Ltd." [
"EmailAddress"
] => string(22) "email@gillanders.co.uk" [
"OrganisationalUnit_UID"
] => string(36) "a3db2a66-b4fb-4ac2-a78a-0f042aab50af" [
"ParentOrganisationalUnit_UID"
] => string(36) "51a9312b-1462-4b7c-aee3-319d6d86ecec" [
"Telephone"
] => string(12) "01779 479777"
} [
"UID"
] => string(36) "a3db2a66-b4fb-4ac2-a78a-0f042aab50af"
} [
"PreviousOwners"
] => int(0) [
"Profiles"
] => array(1) {
[
0
] => array(2) {
[
"Description"
] => string(14) "Long Term Loan" [
"UID"
] => string(36) "fe8b7140-87e0-4784-88b1-d607865be492"
}
} [
"RegistrationDate"
] => string(19) "2016-10-31T00:00:00 " [" RegistrationNumber"
]=> string(8) "SW66 EZH"[
"RetailPrice"
]=> float(5995)[
"Specification"
]=> array(3){
[
"Doors"
] => int(0) [
"Specification"
] => string(3) "Jam" [
"Specification_UID"
] => string(36) "8795a7e0-e1a4-e611-80cf-0a94ef0355af"
}[
"Status"
]=> int(0)[
"StockNumber"
]=> string(5) "U1211"[
"Transmission"
]=> array(2){
[
"Transmission"
] => string(21) "5 Speed Manual Petrol" [
"Transmission_UID"
] => string(36) "707ad700-1318-4e57-88aa-6fb19e58f6d0"
}[
"UnitOfDistance"
]=> int(0)[
"Vehicle_UID"
]=> string(36) "8be4d43d-e3a4-e611-80cf-0a94ef0355af"[
"VehicleCode"
]=> string(40) "VAAD12JAM3HPIM "[
"VehicleType"
]=> int(1)[
"VideoCount"
]=> int(1)[
"Videos"
]=> array(1){
[
0
] => array(6) {
[
"Identifier"
] => string(11) "GxobtgbP1yc" [
"UploadedDate"
] => string(23) "2016-11-14T13:39:07.543 " [" User"
] => NULL [
"User_UID"
] => string(36) "ef891044-ce8a-489f-bddf-cea4511c3c52" [
"Video_UID"
] => string(36) "00000000-0000-0000-0000-000000000000" [
"VideoURL"
] => string(97) "https://www.youtube.com/embed/GxobtgbP1yc?showinfo=0&modestbranding=1&rel=0&autoplay=0&autohide=1"
}
}[
"VIN"
]=> string(17) "W0L0MAP08G6082024"
}
推荐答案
您可以检查数组键是否存在
you can maybe check if array key exists
if(array_key_exists(0,$car['Images'])) {
do stuff
}else{
continue;
}
这篇关于注意:未定义的偏移量:NESTED ARRAY上的0的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
