I'm having problems getting values in my multidimensional arrays
Array
(
[0] => Array
(
[name] => Brandow & Johnston, Inc.
[lat] => 34.051405
[lng] => -118.255576
)
[1] => Array
(
[name] => Industry Metrolink Train Station
[lat] => 34.00848564346
[lng] => -117.84509444967
)
[2] => Array
(
[name] => The Back Abbey
[lat] => 34.095161
[lng] => -117.720638
)
[3] => Array
(
[name] => Eureka! Burger Claremont
[lat] => 34.094572563643
[lng] => -117.72184828904
)
)
Lets say I have an array such above
And I'm using a foreach loop such as below
foreach($_SESSION['array'] as $value){
foreach($valueas $key_location=> $value_location){
if($key_location = "name"){$fsq_name = $value_location;}
$fsq_lat = $value_location["lat"];
$fsq_lng = $value_location["lng"];
echo "<i>".$fsq_lat."</i><br/>";
}
}
I've tried using the if statement, or using $value_location["lat"]; but its not producing the correct values.
If I do if($key_location === "lng"){$fsq_lng = $value_location;} with three equal signs, it'll give me errors for a few iterations and then produce the lng results. if I just do one equal sign and echo it out, it'll give me the name key as well.
Am I missing something?
Thanks
You don't actually need the inner foreach loop. The outer one is sufficient, since it iterates over arrays. The inner arrays can be accessed by key inside the outer foreach.
foreach($_SESSION['array'] as $value){
$fsq_name = $value["name"];
$fsq_lat = $value["lat"];
$fsq_lng = $value["lng"];
echo "<i>".$fsq_lat."</i><br/>";
// Actually none of the above assignments are necessary
// you can just:
echo "<i>".$value["lat"]."</i><br/>";
}
Maybe refactor a bit?
foreach($_SESSION['array'] as $value)
{
// pull the lat and lng values from the value
$fsq_lat = $value["lat"];
$fsq_lng = $value["lng"];
$fsq_name = $value["name"];
echo "<i>".$fsq_lat."</i><br/>";
}// foreach
Related
So I want to delete an array element from a JSON array based on an id in a sub-array. I know it sounds weird. Here's an example of the array. I want to delete the entire array [0] based on the [dealer][id] array where the [id] = 20220 in this example.
Array
(
[results] => Array
(
[offset] => 1
[length] => 15
[data] => Array
(
[0] => Array
(
[dealer] => Array
(
[id] => 20220
[name] => apple
)
)
)
)
}
In reality there are a lot more elements in the [results] array. I'm not sure how to go about it.
Any help is greatly appreciated!
Loop thru data key first then check if dealer id matches the searched id
$id = 20220;
foreach ($array['results']['data'] as $key => $value) {
if ($value['dealer']['id'] == $id) {
unset($array['results']['data'][$key]);
}
}
use array_filter,
$array['results']['data'] = array_filter($array['results']['data'], function($v){return $v['dealer']['id'] != 20220;});
Note, array_chunk is not my solution (It seems to me).
I have an array of about 150.000 elements
Array
(
[0] => Array
(
[name] => Danilo
[phone] => 33568
)
[1] => Array
(
[name] => Alessandro
[phone] => 392222
)
[2] => Array
(
[name] => Alex
[phone] => 3922
)
[3] => Array
(
[name] => Capa
[phone] => 392
)
)
And so on. I would split this array in several arrays, of (for example) 3.000 elements every one.
I saw array_chunk, but it returns a single array with several subarray.
I need several subarray to store them in a database and elaborate in future.
I'm getting crazy to write a snippet starting from that $temp and divide it into smaller array.
$size_chunks = 1;
$temp = array_chunk($recipients, $size_chunks);
foreach ($temp as $key=>$value)
{
if ($key<$size_chunks)
{
$to_store[] = $temp[$key];
}
//print_r($to_store);
// pseudo sql
// INSERT INTO table (sub_recipient) VALUES ($to_store);
$to_store = array();
}
So, every time that for loop end, reduce temp, store $to_store array and restart for others chunks.
Thank you very much.
PS in my example chunk==1 because starting array is small... ;)
With my example of chunk = 1, I need from starting array this 4 arrays:
Array
(
[0] => Array
(
[name] => Danilo
[phone] => 33568
)
)
Array
(
[0] => Array
(
[name] => Alessandro
[phone] => 39222
)
)
Array
(
[0] => Array
(
[name] => Alex
[phone] => 39222
)
)
Array
(
[0] => Array
(
[name] => Capa
[phone] => 392
)
)
Another explain
1 - With a starting array of 15.000 elements, and chunk of 3.000, I need in output (15.000 / 3.000) = 5 arrays. I will save them in database, so in DB I will have 5 rows (a row for every array).
2 - With a starting array of 4 elements, and chunk of 1, I need in output (4 / 1) = 4 arrays. I will save them in database, so in DB I will have 4 rows (a row for every array).
array_chunks() already does what you want, you just have to save it:
$chunks = array_chunk($array, $size_chunks);
foreach ($chunks as $chunk) {
// save $chunk to your database
}
$recipients = Array(
Array("fdbvfdb","dsacsdcds"),
Array("hrloo","dacdsc"),
Array("dcsdc","adcsd"),
Array("dcsdc","adcsd")
);
$total = count($recipients);//count 150.000 elements
$i=1;
for($i=0;$i<$total;$i++){
$O = array_slice($recipients,$i,1);
print_r($O);
//Your insert/Save code
}
you can use this code there is uses Array_Slice
here is my code
array 1:
Array
(
[0] => Array
(
[id] => 42166
[Company_Website] => http://www.amphenol-highspeed.com/
[company_name] => Amphenol High Speed Interconnect
[city_name] => New York
[country_name] => USA
[comp_img] =>
)
)
array 2:
Array
(
[0] => Array
(
[Product_Name] => CX to CX,Amphenol High Speed Active,Serial Attached SCSI
[company_id] => 42166
)
)
php code:
$total = count($result);
$i=0;
foreach ($result as $key=>$value) {
$i++;
$company_id= implode(",",(array)$value['id']);
if ($i != $total)
echo',';
}
code to fetch array 2:
foreach ($res as $key1=>$value1) {
echo $total;
$event[$value['company_name']] = $value1['Product_Name'];
if($value1['company_id']==$company_id )
{
echo " match";
//$key[['company_name']]= $value1['Product_Name'];
}
else
{
echo "not matched";
}
}
what i need create a new index if company_id is match with id of another array.
that is product_name.
if product name is there just create index otherwise show null.
i want show in key=> value .
output should be like:
Array
(
[0] => Array
(
[id] => 42166
[Company_Website] => http://www.amphenol-highspeed.com/
[company_name] => Amphenol High Speed Interconnect
[city_name] => New York
[country_name] => USA
[comp_img] =>
[Product_Name] => CX to CX,Amphenol High Speed Active,Serial Attached SCSI
)
)
Your all problems with keys in arrays will disappear when you will start using company ids as a keys.
To reindex you arrays, you can use:
$array1 = array_combine(array_column($array1, 'id'), $array1);
$array2 = array_combine(array_column($array2, 'company_id'), $array2);
In the output you will get:
array 1:
Array
(
[42166] => Array
(
[id] => 42166
...
)
)
And array 2 will looks similiar - id as a key.
So accessing to the elements using ids as a keys is a piece of cake right now.
So I am print_r-ing an array, generated as follows:
while ($twitgroup = mysql_fetch_array($resulttwitter)) {
print_r($twitgroup);
}
I get this output (with multiple more arrays, dependent on rows).
Array ( [0] => composed [category] => composed [1] => 330 [value] => 330 [2] => 1344384476.94 [timestamp] => 1344384476.94 ) Array ( [0] => elated [category] => elated [1] => 2034 [value] => 2034 [2] => 1344384476.94 [timestamp] => 1344384476.94 ) Array ( [0] => unsure [category] => unsure [1] => 2868 [value] => 2868 [2] => 1344384476.94 [timestamp] => 1344384476.94 ) Array ( [0] => clearheaded [category] => clearheaded [1] => 1008 [value] => 1008 [2] => 1344384476.94 [timestamp] => 1344384476.94 ) Array ( [0] => tired [category] => tired [1] => 2022 [value] => 2022 [2] => 1344384476.94 [timestamp] => 1344384476.94 )
I want to be able to pull individual values here, but I'm having trouble. I'm trying to use a while loop on these arrays, but I think maybe that's wrong. Should I perhaps use a foreach loop, and then on the output of that foreach, access each element of the array?
Say for example, I want to grab composed, and the value of composed. How would I do that?
I'm pretty good with arrays/lists in Python, but my experience with arrays in PHP is somewhat lacking.
Use
while ($row = mysql_fetch_assoc($resulttwitter)) {
$twitgroup[$row['category']] = $row;
}
echo $twitgroup['composed']['value']; // outputs 330
echo $twitgroup['composed']['timestamp']; // outputs 1344384476.94
If you only want categories and their values use
while ($row = mysql_fetch_assoc($resulttwitter)) {
$twitgroup[$row['category']] = $row['value'];
}
echo $twitgroup['composed']; // outputs 330
Replace mysql_fetch_array with mysql_fetch_assoc to eliminate duplicates. Then this:
while ($twitgroup = mysql_fetch_assoc($resulttwitter))
{
foreach ($twitgroup as $key => $value)
{
echo "$key => $value\n";
}
}
You could also get the elements by name:
while ($twitgroup = mysql_fetch_assoc($resulttwitter))
{
echo "category => " . $twitgroup["category"] . "\n";
echo "value => " . $twitgroup["value"] . "\n";
echo "timestamp => " . $twitgroup["timestamp"] . "\n";
}
mysql_fetch_array includes each field twice in the result, one associated with a numeric key and one with the field name.
That is why you have
[0] => composed
[category] => composed
[1] => 330
[value] => 330
You can access field either like :
$twitgroup[0]
or like :
$twitgroup['category']
So, you can access your each row like :
while ($twitgroup = mysql_fetch_array($resulttwitter)) {
print $twitgroup['category']; // or print $twitgroup['0'];
print $twitgroup['value']; // // or print $twitgroup['1'];
// or by the corresponding numeric indices.
}
If at all you want to limit your result to either numeric or Associative array, add an additional flag (result_type) to your mysql_fetch_array :
mysql_fetch_array ($resulttwitter, MYSQL_ASSOC) // or mysql_fetch_array ($resulttwitter, MYSQL_NUM)
Having said all this, it is highly discouraged using mysql_* functions in PHP since they are deprecated. You should use either mysqli or PDO instead.
This is what you have:
Array (
[0] => composed
[category] => composed
[1] => 330
[value] => 330
[2] => 1344384476.94
[timestamp] => 1344384476.94
) Array (
[] =>
[] =>
...
) ...
Arrays in PHP are called associative arrays because they can have
either keys out of integers, strings or anything else.
You have an array with arrays in it.
To access the individual fields, it would be most convenient to use a
for each loop.
$record=0;
foreach ($array as $k => $subArray) {
$record++;
foreach($subArray as $field => $value) {
printf("%d: %s = %s\n", $record, $field, $value);
}
}
Its seems to me that there is something wrong with the way you are fetching
the data, becasue half the fields seem redundant. You can use the string keys
to figure out the contents. so there is no need for the n => name entries.
If that can't be helped, I guess you could iterate over the values with
$ix=0;
for ($i=0; $i < (count($array)/2); $i++){
printf("%s\n", $array[$ix]);
$ix++;
}
I'm trying to get to a certain value using foreach (which I believe is the best way, performance-wise, as of know of)
[businesses] => Array
(
[0] => stdClass Object
(
[rating] => 4
[location] => stdClass Object
(
[city] => Claremont
[display_address] => Array
(
[0] => 580 W First St
[1] => Claremont, CA 91711
)
[geo_accuracy] => 8
[postal_code] => 91711
[country_code] => US
[address] => Array
(
[0] => 580 W First St
)
[coordinate] => stdClass Object
(
[latitude] => 34.094112
[longitude] => -117.7250746
)
)
)
)
I'm trying to get latitude and longitude. But keep in mind that I will have more than just [0] => stdClass Object. There will be multiple numbers. I know I can do something like $response->businesses[0]->location or some sort, but that only gets the 0 key, I need to be able to foreach the keys to get it.
Can someone help me do a foreach on this?
for example I'm doing this so far...
foreach($response->businesses->location as $llk=>$coordinate){
if($llk === "coordinate"){
$selected_lat = $coordinate->latitude;
$selected_lng = $coordinate->longitude;
}
}
So far its giving me errors.
Thanks!
The following might be just what you are looking for:
foreach($response->businesses as $business) {
if(!empty($business->location->coordinate)) {
$coord = $business->location->coordinate;
$selected_lat = $coord->latitude;
$selected_long = $coord->longitude;
}
}
Try this:
foreach ($response->businesses as $business) {
$selected_lat = $business->location->coordinate->latitude;
$selected_lng = $business->location->coordinate->longitude;
}
You probably don't need a foreach loop for this, just use simple array iteration to go through the top level stdClass objects, then just use dereferencing to get each longitude/latitude pair.
for($i = 0; $i < count($response->businesses); $i++)
{
$coords = $response->businesses[$i]->location->coordinate;
$long = $coords->longitude;
$lat = $coords->latitude;
}
That should work as far as I can tell.