I am trying to get the title name of an array object.
For example I have
$results[0]['page']
$results[0]['title']
I was wondering if I could use a for loop to loop through the $results[0] array and get the 'page' and 'title' names and insert them into a new array?
Thanks for your time
foreach ($results[0] as $key=>$value) {
//Your key will be page and title, and then the value will be in value
}
More information on the PHP documentation for foreach().
Or you could just use array_keys() to turn the assoc indexes into a new array automatically.
Related
I have a script that loops through and retrieves some specified values and adds them to a php array. I then have it return the value to this script:
//Returns the php array to loop through
$test_list= $db->DatabaseRequest($testing);
//Loops through the $test_list array and retrieves a row for each value
foreach ($test_list as $id => $test) {
$getList = $db->getTest($test['id']);
$id_export[] = $getList ;
}
print(json_encode($id_export));
This returns a JSON value of:
[[{"id":1,"amount":2,"type":"0"}], [{"id":2,"amount":25,"type":"0"}]]
This is causing problems when I try to parse the data onto my android App. The result needs to be something like this:
[{"id":1,"amount":2,"type":"0"}, {"id":2,"amount":25,"type":"0"}]
I realize that the loop is adding the array into another array. My question is how can I loop through a php array and put or keep all of those values into an array and output them in the JSON format above?
of course I think $getList contains an array you database's columns,
use
$id_export[] = $getList[0]
Maybe can do some checks to verify if your $getList array is effectively 1 size
$db->getTest() seems to be returning an array of a single object, maybe more, which you are then adding to a new array. Try one of the following:
If there will only ever be one row, just get the 0 index (the simplest):
$id_export[] = $db->getTest($test['id'])[0];
Or get the current array item:
$getList = $db->getTest($test['id']);
$id_export[] = current($getList); //optionally reset()
If there may be more than one row, merge them (probably a better and safer idea regardless):
$getList = $db->getTest($test['id']);
$id_export = array_merge((array)$id_export, $getList);
My database query is below.
$beneficiary_id = DB::select('select Telephone from item ');
This returns a json array looks like this
[{"Telephone":"0111222333"},{"Telephone":"0112211223"},{"Telephone":"012345557"},{"Telephone":"0225545455"}]
For another database insertion operation I need only the telephone numbers.
I have used json_decode() function, it is working only if we enter the array manually.
How to get only those values to another array?
Thanks in advance.
Use the pluck function
If you would like to retrieve an array containing the values of a single column, you may use the pluck method.
$titles = DB::table('roles')->pluck('title');
foreach ($titles as $title) {
echo $title;
}
use $beneficiary_id->column_name to get the value from your object.
I am trying to change the class of a list of elements based on information in a DB. I figure the easy way was via an array. I build the array on the php side as follows.
$setClassResult = array();
while($row = mysql_fetch_array( $result ))
{
$setClassResult= array_push_assoc($setClassResult, $row['item_id'], $row['parent']);
}
echo json_encode(array($setClassResult));
break;
which give me....
[{"830":"0","734":"830","733":"830","732":"830","735":"830","737":"830","736":"830","738":"830","739":"830","740":"830","741":"830","742":"830","872":"0","869":"872","868":"872","880":"872","964":"872"}]
to decode and change the elements I use.....
$.each(data, function(key, val) {
$("#recordsArray_"+key).toggleClass(val);
alert(key+" "+val);
});
The alert happens once with 0[object,Object] Is this because of the way I created the array? The first thing I notice wrong is the [ and ] around the JSON.
No need to add extra array, try with :
echo json_encode($setClassResult);
Your result is in array of object format:
[{"830":"0","734":"830","733":"830","732":"830","735":"830","737":"830","736":"830","738":"830","739":"830","740":"830","741":"830","742":"830","872":"0","869":"872","868":"872","880":"872","964":"872"}]
So when you iterate, it iterates through array first & says key is 0 & value is an object.so, if you later iterate through value which is an object, you will get it
or as soju if u dont require to store it in array of objects but a single object & iterate once.
hey guys,
i think i lost my mind.
print_r($location); lists some geodata.
array (
'geoplugin_city' => 'My City',
'geoplugin_region' => 'My Region',
'geoplugin_areaCode' => '0',
'geoplugin_dmaCode' => '0',
'geoplugin_countryCode' => 'XY',
'geopl ...
when I iterate through it with a foreach loop I can print each line.
However shouldn't it be possible to just get a specific value out of the array?
like print $location[g4]; should print the countryCode shouldn't it? Thank you!
echo $location['geoplugin_countryCode'];
Yes, you can get a specific value by key. The keys in your case are the geoplugin_ strings.
To get the country code:
// XY
$location['geoplugin_countryCode'];
$location['geoplugin_countryCode'];
would access country code
Where does "g4" come from? Did you mean "4"?
If you had a normal numerically-indexed array then, yes, you could write $location[4]. However, you have an associative array, so write $location['geoplugin_countryCode'].
there you are using an associative array, it is an array with a user defined key:value pair (similar to dictionaries on Python and Hash Tables on C#)
You can access the elements just using the Key (in this case geoplugin_city or geoplugin_region)
Using the standard array syntax:
$arrayValue = $array[key]; //read
$array[key] = $newArrayValue; //write
For example:
$location['geoplugin_city']; or $location['geoplugin_region'];
If you are not familiarwith PHP arrays you can take a look here:
http://php.net/manual/en/language.types.array.php
For a better understanding on array manipulation with PHP take a look of:
http://www.php.net/manual/en/ref.array.php
i used json_decode to create a json object. After going through some elements i would like to add child elements to it. How do i do this?
Depending on which options you passed to json_decode(), you got either an object or array back from it, and you can add elements to these as you would any other object or array.
To add $key => $element to an array:
$myArray[$key] = $element;
Slightly less obvious, but you can add a new public member to an object in PHP as follows:
$myObj->$key = $element;
This will add a member variable from the contents of $key (assuming $key is a string).
If you then pass your array/object into json_encode(), you'll end up with the following json:
{ 'value_of_key' : 'value_of_element' }
I would use json_decode($json,true) with the true flag so that it would come back as an associative array. Then you can add items using the array syntax.