JSON decode any value - $var1 = $data['val1']['anyvalue']['val2']; - php

Question

I am pulling in JSON data for a mySQL import and in setting the variables after my JSON decode statements of my JSON file I am struggling with something. My variable setting looks like so
$name = $data['available_channels']['3']['name'];
and the relevant JSON like this
"available_channels": {
"3": {
"num": 152,
"name": "Sky Sports 3",
"stream_type": "live",
"type_name": "Live Streams",
"stream_id": "3",
"stream_icon": "http://www.tv-logo.com/pt-data/uploads/images/logo/sky_uk_sports3.jpg",
"epg_channel_id": "Sky Sports 3",
"added": "0",
"category_name": "Sports UK",
"category_id": "5",
"series_no": null,
"live": "1",
"container_extension": null,
"custom_sid": ":0:86:EEE:7F2:2:11A0000:0:0:0:",
"tv_archive": 0,
"direct_source": "",
"tv_archive_duration": 0
},
My problem is that each channel for the service begins with a new number. So i need my variables to be pulled in like so,
$name = $data['available_channels']['ANY VALUE HERE']['name'];
any thoughts? I know it must be simple and I am having a blonde moment here
Thanks
UPDATE 1
//convert json object to php associative array
$data = json_decode($jsondata, true);
//get the values and asign variables
$name = $data['available_channels']['3']['name'];
UPDATE 2
Full Code Now
$data = json_decode($jsonFile, true);
for($i = 0; $i <= count($data['available_channels']); $i++){
$name = $data['available_channels'][$i]['name'];
$num = $data['available_channels'][$i]['num'];
$epg_channel_id = $data['available_channels'][$i]['epg_channel_id'];
$category_name = $data['available_channels'][$i]['category_name'];
$stream_icon = $data['available_channels'][$i]['stream_icon'];
//insert into mysql table
$sql = "INSERT INTO channels(name, num, epg_channel_id, category_name, stream_icon)
VALUES('$name', '$num', '$epg_channel_id', '$category_name', '$stream_icon')";
if(!mysql_query($sql,$con))
{
die('Error : ' . mysql_error());
}
}
Gets about 117 of 234 rows in but the other rows are blank... any thoughts

Answer 1

$name = array_values($data['available_channels'])[0]['name'];
array_values returns a new array consisting of the values of the source array, renumbered from 0.

Answer 2

You can count the number of channels inside the array, then loop through each channel.
for($i = 0; $i <= count($data['available_channels']); $i++) {
$name = $data['available_channels'][$i]['name'];
// TODO: Do something with the name
}
Or you could do what #cske said:
$channels = [];
foreach($data['available_channels'] as $k => $v) {
// this will keep the key's the same
$channels[$k] = $v['name'];
}
Or you could choose a more OO styled approach, see it working at 3v4l:
class Channel {
private $_data;
public function __construct($json) {
$this->_data = json_decode($json, true);
}
public function parse() {
$parsed = [];
foreach($this->_data['available_channels'] as $k => $v) {
$parsed[$k] = $v['name'];
}
$this->_data['available_channels'] = $parsed;
return $this;
}
public function getByKey($key) {
return $this->_data['available_channels'][$key];
}
}
$c = new Channel($json_response);
echo 'Name for Channel 3 is: ' . $c->parse()->getByKey('3');

Answer 3

So after update 2, this will work
foreach($data['available_channels'] as $d) {
$name = $d['name'];
$num = $d['num'];
$epg_channel_id = $d['epg_channel_id'];
$category_name = $d['category_name'];
$stream_icon = $d['stream_icon'];
//insert into mysql table
$sql = "INSERT INTO channels(name, num, epg_channel_id, category_name, stream_icon)
VALUES('$name', '$num', '$epg_channel_id', '$category_name', '$stream_icon')";
if (!mysql_query($sql, $con)) {
die('Error : ' . mysql_error());
}
}
Or if with for loop #KDOT answer, but corrected by #Niet the Dark Absol code
$data['available_channels'] = array_values($data['available_channels']);
for($i = 0; $i <= count($data['available_channels']); $i++) {
$name = $data['available_channels'][$i]['name'];
...
}
That is simply not true if a php array has count()=5 then it's keys are 0,1,2,3,4 what couses missing rows with KDOT's answer