I'm trying to echo an array value from an array that was created using the following code.
The data for the array is pulled from a MySQL table.
$names = $db->fetchAll("select `name` from `classes`");
This is what is stored in the $names variable
Array ( [0] => Array ( [name] => Web Design ) [1] => Array ( [name] =>
Art History ) [2] => Array ( [name] => Gym ) [3] => Array ( [name] =>
English ) [4] => Array ( [name] => Biology ) [5] => Array ( [name] =>
3D Animation ) [6] => Array ( [name] => Tech Disc ) [7] => Array (
[name] => Math ) [8] => Array ( [name] => Dance ) [9] => Array (
[name] => Video Production ) [10] => Array ( [name] => Home Ec ) [11]
=> Array ( [name] => Government ) [12] => Array ( [name] => Physics ) )
I'm attempting to echo a [name] value OR all [name] values, but I can't figure it out. I've tried the following....
<?php echo $names['name'];?>
returns nothing
<?php echo $names['0'];?> //AND\\ <?php echo $names[0];?>
Both return the string Array
Can someone please help me echo a single value from the array?
Example: Web Design or Art History
Also can someone please help me echo all the values from the array?
Example: Web Design Art History Gym English Biology ......
You should try <?php echo $names[0]['name'];?>, <?php echo $names[1]['name'];?>, etc....
This is because your query function returns an array with all results in it.
In that array, each row returned is an array again. And each field is a key in that array.
Echoing a single value:
echo $names[0]['name'];
Echoing all values:
foreach ($names as $name) {
echo $name['name'].' ';
}
Related
Working on a personal project that will pull results from an API with full details of each pokemon.
So far I got the contents of the URL and returned the results into a JSON array format.
At the moment I am stuck on trying to retrieve results for[stats] inside from the array in an efficient manner.
private function getGenOnePokemon()
{
// the url of the api
$url = $this->baseUrl;
//get the contents of $url var and decode it into a json array
$json = file_get_contents($url , true);
$pokemon = json_decode($json, true, JSON_UNESCAPED_UNICODE);
// array output of pokemon
echo '<pre> ';
print_r($pokemon);
echo'</pre>';
//echo out value as speed
foreach($pokemon['results'][0] as $happy)
{
echo $happy['name'] . '<br />';
}
// echo base_stat value for speed with value of 90
echo $pokemon['stats'][0]['base_stat'];
}
However I do not seem to get anywhere much printing values/keys as I need to add something else to have full access to the values?
Would prefer not to directly access results, like I am doing with base_stat as plan on using this logic to pass into HTML View layer later.
Example of print_r dump (not full dump as really long) Full example: https://pokeapi.co/api/v2/pokemon/pikachu
Array
(
[forms] => Array
(
[0] => Array
(
[url] => https://pokeapi.co/api/v2/pokemon-form/25/
[name] => pikachu
)
)
[abilities] => Array
(
[0] => Array
(
[slot] => 3
[is_hidden] => 1
[ability] => Array
(
[url] => https://pokeapi.co/api/v2/ability/31/
[name] => lightning-rod
)
)
[1] => Array
(
[slot] => 1
[is_hidden] =>
[ability] => Array
(
[url] => https://pokeapi.co/api/v2/ability/9/
[name] => static
)
)
)
[stats] => Array
(
[0] => Array
(
[stat] => Array
(
[url] => https://pokeapi.co/api/v2/stat/6/
[name] => speed
)
[effort] => 2
[base_stat] => 90
)
[1] => Array
(
[stat] => Array
(
[url] => https://pokeapi.co/api/v2/stat/5/
[name] => special-defense
)
[effort] => 0
[base_stat] => 50
)
[2] => Array
(
[stat] => Array
(
[url] => https://pokeapi.co/api/v2/stat/4/
[name] => special-attack
)
[effort] => 0
[base_stat] => 50
)
[3] => Array
(
[stat] => Array
(
[url] => https://pokeapi.co/api/v2/stat/3/
[name] => defense
)
[effort] => 0
[base_stat] => 40
)
[4] => Array
(
[stat] => Array
(
[url] => https://pokeapi.co/api/v2/stat/2/
[name] => attack
)
[effort] => 0
[base_stat] => 55
)
[5] => Array
(
[stat] => Array
(
[url] => https://pokeapi.co/api/v2/stat/1/
[name] => hp
)
[effort] => 0
[base_stat] => 35
)
)
Any advice on how to access the data using foreach or other tips greatly appreciated. Thank you!
PHP has a specific function designed to target columnar data from arrays. It is called array_column()
If you want to isolate all of the name elements inside the forms subarray, use this:
$names=array_column($pokemon['forms'],'name');
If you want to isolate all of the base_stat elements inside of the stats subarray, use this:
$base_stats=array_column($pokemon['stats'],'base_stat');
Now you will have $names and $base_stats which are single-dimensional arrays by which you can perform additional processes or return from the function. Clean, intuitive, and simple.
Your $pokemon array doesn't contain a results field. There's only an forms field. So you should iterate over forms to print the names of the forms.
foreach($pokemon['forms'] as $happy) {
echo $happy['name'] . '<br />';
}
You could do the same thing with the stats
foreach($pokemon['stats'] as $stat) {
$base_stat = $stat['base_stat'];
// ...
}
I need to create a db function for multidimensional array. How deep the array currently dont know, bcoz they will come from xml file.
I have a sample array
Array
(
[employee] => Array
(
[0] => Array
(
[name] => Array
(
[lastname] => Kelly
[firstname] => Grace
)
[hiredate] => October 15, 2005
[projects] => Array
(
[project] => Array
(
[0] => Array
(
[product] => Printer
[id] => 111
[price] => $111.00
)
[1] => Array
(
[product] => Laptop
[id] => 222
[price] => $989.00
)
)
)
)
[1] => Array
(
[name] => Array
(
[lastname] => Grant
[firstname] => Cary
)
[hiredate] => October 20, 2005
[projects] => Array
(
[project] => Array
(
[0] => Array
(
[product] => Desktop
[id] => 333
[price] => $2995.00
)
[1] => Array
(
[product] => Scanner
[id] => 444
[price] => $200.00
)
)
)
)
[2] => Array
(
[name] => Array
(
[lastname] => Gable
[firstname] => Clark
)
[hiredate] => October 25, 2005
[projects] => Array
(
[project] => Array
(
[0] => Array
(
[product] => Keyboard
[id] => 555
[price] => $129.00
)
[1] => Array
(
[product] => Mouse
[id] => 666
[price] => $25.00
)
)
)
)
)
)
I need to enter these type of array to db and then retrieve them in a good non programmer readable format
I created 2 table... 1st for array key with array level field and another for key=value
I tried this
function array_Dump($array, $d=1){
if (is_array($array)){
foreach($array as $key=>$val){
for ($i=0;$i<$d;$i++){
$level=$i;
}
if (is_array($val)){
if (is_int($key)){
array_Dump($val, $d+1);
}else{
$query = "insert into xml_array (level, input) VALUES ('$level','$key')";
insert_sql($query);
array_Dump($val, $d+1);
}
} else {
$query = "insert into xml_data (array_id,level_id, array_key,array_value) VALUES ('$insert_id','$level','$key','$val')";
insert_sql($query);
}
}
}
}
Create a table like this:
attributes(id, parent_id, properties)
where id will be the primary key, parent_id will be the id of the parent record and properties will be a small json field with the atomic properties. This way you support any depth the XML may throw towards your direction.
As about non-programmer representation. For instance you could use a table (you can solve that with divs as well) which will contain a row for each element in the top level array. Such a row would contain separate columns for each property. When a property is an array, then the given cell will be a table of its own, which will be handled similarly as the first table. It is advisable to make the inner tables collapsible, so if one wants to see the main levels only, the user will not have to scroll for a long while.
i have below array,and i have amenities id = 50,i need to show amenities name like 'Express check-out' using amenities id = 50 from this array using php.
Array
(
[amenities] => Array
(
[0] => Array
(
[id] => 0
[name] => Cash machine
[key] => CASHMACHINE
)
[1] => Array
(
[id] => 42
[name] => Express check-in
[key] => EXPRESSCHECKINSERVICE
)
[2] => Array
(
[id] => 50
[name] => Express check-out
[key] => EXPRESSCHECKOUTSERVICE
)
[5] => Array
(
[id] => 3
[name] => Wi-Fi
[key] => WIFISERVICE
)
)
)
There are many ways that your problem can be solved. Easy way can be as follow
function getAmenities($array,$id){
foreach($array['amenities'] as $tmp_arr)
if($tmp_arr['id']==$id)
return $tmp_arr['name'];
}
echo getAmenities($array,50);
I have not checked result but should work fine. Please let me know if this works for you
How do u create this Array?
Can't u just use the id as the key when u create it, like:
$key = $array2['id'];
$array['amenities'][$key] = $array2;
I need help figuring out what I am doing wrong and/or if there is a better way to do it, my question is two part. The first part is I am using Joomla 3.5.1 and in the template I have two fieldsets, one that allows the user to enter links to their social media accounts and the second I am attempting to make a sort if you will using a set of drop downs. This may or may not be the best so I am open to options here.
Now for the second part. I am able to bring in the both field sets into separate arrays, for simplicity array 1 and array 2. Array 1 has the links and array 2 has the order. So my question is this, how would be the best way to loop through and match everything up while removing the empties in array 1 and "none" in array 2.
One thought I did have is should array 2 not be multidimensional and let the key be the "soXYZ", but then how would the best way to match it up knowing that the lengths are different and the order as well.
Array 2 where (-1) are "None" in the drop downs
Array
(
[0] => soPhone
[1] => soContact
[2] => soFacebook
[3] => soMap
[4] => -1
[5] => -1
[6] => -1
[7] => -1
[8] => -1
[9] => -1
[10] => -1
[11] => -1
[12] => -1
[13] => -1
[14] => -1
)
Array 1
Array
(
[0] => Array
(
[0] => soPhone
[1] => 555.867.5309
)
[1] => Array
(
[0] => soContact
[1] => Contact
)
[2] => Array
(
[0] => soMap
[1] => Map
)
[3] => Array
(
[0] => soFacebook
[1] => Facebook
)
[4] => Array
(
[0] => soTwitter
[1] => Twitter
)
[5] => Array
(
[0] => soGoogle
[1] => Google Plus
)
[6] => Array
(
[0] => soLinkedIn
[1] => Linked In
)
[7] => Array
(
[0] => soPinterest
[1] => Pinerest
)
[8] => Array
(
[0] => soYouTube
[1] => YouTube
)
[9] => Array
(
[0] => soVimeo
[1] => Vimeo
)
[10] => Array
(
[0] => soYelp
[1] => Yelp
)
[11] => Array
(
[0] => soInstagram
[1] => Instagram
)
[12] => Array
(
[0] => soTripAdvisor
[1] => Trip Advisor
)
[13] => Array
(
[0] => soHouzz
[1] => Houzz
)
[14] => Array
(
[0] => soAngiesList
[1] => Angies List
)
)
Array Result
Array
(
[0] => Array
(
[0] => soPhone
[1] => 555.867.5309
)
[1] => Array
(
[0] => soContact
[1] => Contact
)
[2] => Array
(
[0] => soFacebook
[1] => Facebook
)
[3] => Array
(
[0] => soMap
[1] => Map
)
)
Any guidance is appreciated.
After the power of posting I was able to eventually get my desired result, which as follows:
I set up three arrays arrLinks (originally Array 1) , arrLinksOrder (originally Array 2) and arrLinksCombined (Array Result), then populated arrLinks with the user entered text links on the template, arrLinksOrder pulls from the drop downs.
My original plan was to have arrLinks be multidimensional but in the end I just set the key's for each in my code.
I then used this stackoverflow link to help combine the arrLinksOrder and arrLinks. Once everything is combined I was able to build the html and really clean up the file to something easier to manage.
Code below:
// Populate the contents of the text-box into an array
$arrLinks = array(
"soFacebook"=> $tbFacebook,
"soTwitter"=> $tbTwitter,
"soGoogle"=> $tbGoogle,
"soLinkedIn"=> $tbLinkedIn,
"soPinterest"=> $tbPinterest,
"soYouTube"=> $tbYouTube,
"soInstagram"=> $tbInstagram,
);
// Populate an array (arrLinksOrder) with the drop down selections
for ($i=1; $i < ($linksCount+1); $i++) {
$varName = 'listSocialOrder'.$i;
$arrLinksOrder[$i] = $$varName;
}
// Combine arrLinksOrder and arrLinks, if the arrLinksOrder exists in arrLinks
foreach($arrLinksOrder as $key) {
if(array_key_exists($key, $arrLinks)) {
$arrLinksCombined[$key] = $arrLinks[$key];
}
}
If anyone has any improvements please feel free to share, this is what worked for me at the time.
I am attempting to use a recursive function to search through a multidimensional array, such as the one below, to find certain values, i.e. people who went to certain school, majored in a certain subject, hold a certain job title, etc. In case your wondering, this array is output from the Facebook Graph API. In reality there are more than 3 offset arrays, depending on the number of friends a user has, it could be in the thousands.
Here's a solution I tried with very little knowledge of recursive functions (my first thought was to use in_array before I found out it didn't work for md arrays):
So to give you an idea of how the md array below works, check out this snippet of code:
$friend = $fqlResult[0]['name'];
echo "$friend";
*The output would be "BLANK" since I deleted the person's name.
$data = $fqlResult;
$collegemajor = (isset($value['education'][0]['concentration'][0]['name'])) ? $value['education'][0]['concentration'][0]['name'] : null ;
$major = "Business Administration";
if (isset($collegemajor)) {
foreach($data as $key=> $value) {
if ($value($collegemajor) == $major) {
echo "User $key is majoring in $major";
}
}
}
So here is the multidimensional array referenced above. In this example, I want to pull the names of all of the user's friends who majored in Business Admin. in college. As you can see from this snippet, there aren't any (I think) but in the long version of the array, there are plenty. The code above produces no output and I'm lost as to how to make it work. Any help would be greatly appreciated.
Array
(
[0] => Array
(
[name] => BLANK
[education] =>
[work] =>
)
[1] => Array
(
[name] => BLANK
[education] => Array
(
[0] => Array
(
[school] => Array
(
[id] => 108087985890571
[name] => St. Andrew's School
)
[year] => Array
(
[id] => 138383069535219
[name] => 2005
)
[type] => High School
)
[1] => Array
(
[school] => Array
(
[id] => 20697868961
[name] => Boston University
)
[concentration] => Array
(
[0] => Array
(
[id] => 108654845832522
[name] => Business Administration
)
)
[type] => College
)
[2] => Array
(
[school] => Array
(
[id] => 108289315859633
[name] => University of Miami
)
[year] => Array
(
[id] => 138879996141011
[name] => 2013
)
[type] => Graduate School
)
)
[work] => Array
(
)
)
[2] => Array
(
[name] => BLANK
[education] => Array
(
[0] => Array
(
[school] => Array
(
[id] => 115444241803885
[name] => Saint Andrews High School
)
[year] => Array
(
[id] => 137616982934053
[name] => 2006
)
[type] => High School
)
[1] => Array
(
[school] => Array
(
[id] => 112033702149888
[name] => Boca Raton High
)
[year] => Array
(
[id] => 137616982934053
[name] => 2006
)
[type] => High School
)
[2] => Array
(
[school] => Array
(
[id] => 108087985890571
[name] => St. Andrew's School
)
[type] => High School
)
[3] => Array
(
[school] => Array
(
[id] => 107573562605861
[name] => Duke University
)
[concentration] => Array
(
[0] => Array
(
[id] => 104045469631213
[name] => Political science
)
)
[type] => College
)
)
[work] =>
)
[4] => Array
(
[uid] => 1234567
[name] => BOB NO ONE
[education] => Array
(
[0] => Array
(
[school] => Array
(
[id] => 106039752760627
[name] => Berwick Academy
)
[year] => Array
(
[id] => 137616982934053
[name] => 2006
)
[type] => High School
)
[1] => Array
(
[school] => Array
(
[id] => 108087985890571
[name] => St. Andrew's School
)
[type] => High School
)
[2] => Array
(
[school] => Array
(
[id] => 105690226130720
[name] => Northeastern University
)
[concentration] => Array
(
[0] => Array
(
[id] => 108654845832522
[name] => Business Administration
)
)
[type] => College
[classes] => Array
(
[0] => Array
(
[id] => 189873264368867
[name] => 2011
)
)
)
)
There's really no need for recursion for something like this, considering the depth of the tree is always fixed and the structure is known. Using some nested loops would do the trick:
$friends = $fqlResult;
$friends_BA = array();
foreach ($friends as $friend) {
if (is_array($friend['education'])) {
foreach ($friend['education'] as $school) {
if (isset($school['concentration'])) {
foreach ($school['concentration'] as $concentration) {
if (strpos(strtolower($concentration['name']), 'business') !== false) {
$friends_BA[] = $friend;
continue 3; // skip to the next friend
}
}
}
}
}
}
var_dump($friends_BA);
You want a function that will find a specific value on a specific field in the array,
function arraySearch($key, $value, $array){
$flag = FALSE;
foreach($array as $result){
if(arraySearch($key, $value, $result)){
$flag = TRUE
}elseif(isset($result[$key] && $result[$key] == $value){
$flag = TRUE;
}
}
return $flag
}
to improve performance rather than setting $flag to true, you could return true as it will stop the execution of the function and prevent it from continuing to search the array.
Call it like so
foreach($fqlResult as $result){
if(arraySearch('concentration', 'Business Administration', $result)){
//You have found a user you are looking for, echo $result['name'] or do what you want with the result.
}
}