I have a multidimensional array returned by drupal render function in that array i want to choose some last values
for example
$array['static_name'][number]['changes_every_time']['some_name']['value_i_need'];
is there ant way we can skip the "changes_every_time" level while printing array
is there a way we can use wild character in there
like if i want to print
echo $array['static_name'][number][*]['some_name'][value_i_need];
some thing like this
Store answer "no".
But what you can do is do a foreach over the keys of $array['static_name'][number]
foreach($array['static_name'][number] as $val) {
echo $val['some_name'][value_i_need];
}
This way you don't have to care.
well, you cold iterate the array at that "level" with a foreach loop
Untested code:
foreach ($array['static_name'][number] as $key => $value) {
echo $value['some_name'][value_i_need];
}
Related
I have this code
if (isset($_POST['submit2']))
{
foreach ($_POST['check_list'] as $key) {
$input = implode(",", $key);
}
} /*end is isset $_POST['submit2'] */
echo $input;
it produces the error " implode(): Invalid arguments passed " when I change the implode arguments to implode(",", $_POST['check_list']) it works as intended.
Can someone clarify why? As far as I understand the $key variable should be the same as the $_POST['submit2'] isn't that what the as in the foreach does?
Sorry if it's a silly question, I'm self taught and sometimes details like that are hard to find online.
You seem confused at several levels, so let me clarify some of them:
You said 'As far as I understand the $key variable should be the same as the $_POST['submit2'] isn't that what the as in the foreach does?'. The answers are NO and NO:
The $key variable outside the foreach loop will contain the last element of the array that's stored in $_POST['check_list'], $_POST['submit2'] seems to be only used to check if is set and nothing else in your piece of code. What foreach does is to traverse any iterator variable (an array in your case) and set the current item in a variable ($key) in your case. So after the loop, $key will contain the last element of that array. For more information refer to the docs: [http://php.net/manual/en/control-structures.foreach.php]
implode expects the second parameter to be an array, it seems you're not providing an array, but any other type. Is the last item of $_POST['check_list'] actually an array?
If you're trying to 'glue' together all items of $_POST['check_list'], you don't need to iterate, you just use implode on that one: $input = implode(",", $_POST['check_list']);. Otherwise, i'm not sure what are you trying to do.
Maybe if you explain what are you trying to do, we can help better.
Foreach already iterates trough your values. You can either get the value and echo it from there or you can add it to another array input if thats what you need:
if (isset($_POST['submit2']))
{
foreach ($_POST['check_list'] as $key => $value) {
$input[] = 'Value #'. $key .' is ' . $value;
}
}
echo implode(",", $input);
You are saying that $_POST['check_list'] is an array if implode() works on it, so no need to loop to get individual items. To implode() the values:
echo implode(',', $_POST['check_list']);
To implode() the keys:
echo implode(',', array_keys($_POST['check_list']));
foreach() iterates over an array to expose each item and get the individual values and optionally keys one at a time:
foreach($_POST['check_list'] as $key => $val) {
echo "$key = $value<br />";
}
implode function needs array as second argument. You are passing string value as second argument. That's why it's not working.
I have this object containing one row and many keys/variables with numbered names.
I need to pass each of them one at a time to another function. How do I loop through the keys instead of the rows?
The code would look like this:
foreach ($object['id'] as $row):
$i++;
$data['myInfo'][$i] = $this->get_data->getInfo('data1', 'id', $row->{'info'.$i.'_id'});`
but this obviously won't work since it's looping through the rows/instances of an object, and I have only one row in my $object['id'] object (with info1_id, info2_id, info3_id, info4_id... etc keys), so the loop stops after just one cycle. And I really don't feel like typing all of that extra code by hand, there's gotta be solution for this. :)
You can just iterate through your object like an array :
foreach ($object['id'] as $row) {
foreach ($row as $k => $v) {
$id = substr($k, 4, strpos($k, '_')-4);
$data['myInfo'][$id] = $this->get_data->getInfo('data1', 'id', $v);`
}
}
Thanks for the directions Alfwed, I didn't know you could use foreach loop for anything other than instances of an object or arrays (only started learning php a week or so ago), but now it looks pretty straight forward. that's how I did it:
foreach ($object['id'] as $row):
foreach ($row as $k=>$v):
$i++;
if ($k == print_r ('info'.$i.'_id',true)){
$data['myinfo'][$i] = $this->get_db->getRow('products', 'id','info'.$i.'_id');
<...>
in my case, I knew how many and where were those values, so I didn't have to worry about index values too much.
$array['2']['21'] = null;
I want to get 21 from array above without looping, is it possible? I want to do it for those arrays which have ONLY 1 record in them. Obviously I'll have to use loop for others.
foreach ($array['2'] as $key => $value)
{
echo $key;
//I know this does the job wondering if there is simple function
}
I looked at extract() but doesn't do my job.
try this :
$arr_keys = array_keys($array['2']);
echo "<pre>";
print_r($arr_keys);
Ref: http://php.net/manual/en/function.array-keys.php
Im some array that's being returned by some query.. and the result is something like this:
array(array('balance_1'=> '-5', 'balance_2'=>'-21'), array('balance_1'=> '-21', 'balance_2'=>'21'), array('balance_1'=> '-50', 'balance_2'=>'40'))
i want to transform this into an array that looks something like this:
array(array(-5,11,-50), array(-21, 21, 40));
basicly i want to join all balance_1, all balance_2, all balance_3 into separated arrays.
any ideas? thanks
You'll just loop over the list, then collect the values. It's most simple if you reuse the existing keys to group:
foreach ($list as $row) {
foreach ($row as $key=>$value) {
$out[$key][] = $value;
}
}
This way you'll get an $out array, with [balance_1] or [balance_2] holding the value lists.
Loop though the array and use "array_key_exists" if the key exists add to the array, if it doesn't build a new array with your index.
For more can be found here:
http://www.php.net/manual/en/function.array-key-exists.php
I am trying to get the specific value of file extension in this array. All I can do so far is .
I am wanting the fileextention ".jpg"
All I know how to do is echo the values like so using foreach;
file_nameBob7213.jpg file_typeimage/jpeg
file_pathC:/xampp/htdocs/midas/records/
full_pathC:/xampp/htdocs/midas/records/Bob7213.jpg raw_nameBob7213
orig_nameBob72.jpg client_nameafasfafs.jpg **file_ext.jpg** file_size44.96
is_image1 image_width716 image_height474 image_typejpeg
image_size_strwidth="716" height="474"
I am only interested in retrieving the file_ext from this array. How do I select that exact thing?
foreach ($file['upload_data'] as $item => $value)
{
echo $item; echo $value; echo "<br/>";
}
How do I do this? , thanks!
$file['upload_data']['file_ext']
It's just an array within an array, so specify 2 array keys
Incidentally, if you want to see the contents of an array, a quick way of doing it is to use var_export:
var_export($file); # echoes the entire array
You don't need to write a foreach loop every time
$file['upload_data']['file_ext'] contains '.jpg'.