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'.
Related
I have a php array, and inside the array is a reference to another php object with a numerical value.
How can i access the elements in this array without knowing that numerical id (it could be different for each array)?
In the image below, I need to get the values inside field_collection_item like so....
$content['field_image_columns'][0]['entity']['field_collection_item'][133]['field_image']
For the first array key (0) i have done the following...
$i = 0;
while($i <= 2) {
if(isset($content['field_image_columns'][$i])) {
print '<div class="column-' . $i . '">';
foreach ($content['field_image_columns'][$i]['entity']['field_collection_item'] as $fcid => $values) {
// Print field values
}
print '</div>';
}
$i++;
}
Doing a foreach loop for a single array item seems wrong - is there a method i should be using for this use case?
You can select first item of array for example with:
Use array_shift, but it will modify source array:
$cur = array_shift($content['field_image_columns'][$i]['entity']['field_collection_item']);
print $cur['field_image'];
Get keys of array with array_keys and use first element of result as a key
$ks = array_keys($content['field_image_columns'][$i]['entity']['field_collection_item']);
print $content['field_image_columns'][$i]['entity']['field_collection_item'][$ks[0]]['field_image'];
Use current function:
$cur = current($content['field_image_columns'][$i]['entity']['field_collection_item']);
print $cur['field_image'];
As with most programming, there are quite a few ways you could do it. If a foreach works, then it isn't wrong, but it may not be the best way.
// Get the current key from an array
$key = key($array);
If you don't need the key, then you can just get the value from the array.
// Get the current value from an array
$value = current($array);
Both of these will retrieve the first key/value from the array assuming you haven't advanced the pointer.
current, key, end, reset, next, & prev are all array functions that allow you to manipulate an array without knowing anything about the internals. http://php.net/manual/en/ref.array.php
i have an array result. i want to print 2 rows(product data) in first page.
next 2 rows in second page and so on. if anybody knows this,please help me to solve it
my array
$data['product_list']
foreach($data['product_list'] as $dat)
{
echo $dat->prd_id;
echo $dat->prd_name;
}
You are doing a foreach loop on an associative array and then trying to access the the contents as objects by using ->. I can only given assumption of what you might be doing. If your array is already populated with a name and id like you have described in your foreach loop this is how you would access the contents in the loop:
foreach($data['product_list'] as $dat)
{
echo $dat['prd_id'];
echo $dat['prd_name'];
}
That is how you would print out the contents providing you had the data stored in your array like so:
$data['product_list'][0] = array('prd_id'=>'id0','prd_name'=>'name0');
$data['product_list'][1] = array('prd_id'=>'id1','prd_name'=>'name1');
$data['product_list'][2] = array('prd_id'=>'id2','prd_name'=>'name2');
Better you try with array_slice();
<?php
$a=array("red","green","blue","yellow","brown");
print_r(array_slice($a,2));
?>
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];
}
Its a simple problem but i dont remember how to solve it
i have this array:
$this->name = array('Daniel','Leinad','Leonard');
So i make a foreach on it, to return an array
foreach ($this->name as $names){
echo $names[0];
}
It returns
DLL
It returns the first letter from my strings in array.I would like to return the first value that is 'Daniel'
try this one :
foreach ($this->name as $names){
echo $names; //Daniel in first iteration
// echo $names[0]; will print 'D' in first iteration which is first character of 'Daniel'
}
echo $this->name[0];// gives only 'Daniel' which is the first value of array
Inside your loop, each entry in $this->name is now $names. So if you use echo $names; inside the loop, you'll print each name in turn. To get the first item in the array, instead of the loop use $this->name[0].
Edit: Maybe it makes sense to use more descriptive names for your variables.
For example $this->names_array and foreach ( $this->names_array as $current_name ) makes it clearer what you are doing.
Additional answer concerning your results :
You're getting the first letters of all entries, actually, because using a string as an array, like you do, allows you to browse its characters. In your case, character 0.
Use your iterative element to get the complete string everytime, the alias you created after as.
If you only want the first element, do use a browsing loop, just do $this->name[0]. Some references :
http://php.net/manual/fr/control-structures.foreach.php
http://us1.php.net/manual/fr/language.types.array.php
I'm trying to understand why, on my page with a query string,
the code:
echo "Item count = " . count($_GET);
echo "First item = " . $_GET[0];
Results in:
Item count = 3
First item =
Are PHP associative arrays distinct from numeric arrays, so that their items cannot be accessed by index? Thanks-
They can not. When you subscript a value by its key/index, it must match exactly.
If you really wanted to use numeric keys, you could use array_values() on $_GET, but you will lose all the information about the keys. You could also use array_keys() to get the keys with numerical indexes.
Alternatively, as Phil mentions, you can reset() the internal pointer to get the first. You can also get the last with end(). You can also pop or shift with array_pop() and array_shift(), both which will return the value once the array is modified.
Yes, the key of an array element is either an integer (must not be starting with 0) or an associative key, not both.
You can access the items either with a loop like this:
foreach ($_GET as $key => $value) {
}
Or get the values as an numerical array starting with key 0 with the array_values() function or get the first value with reset().
You can do it this way:
$keys = array_keys($_GET);
echo "First item = " . $_GET[$keys[0]];
Nope, it is not possible.
Try this:
file.php?foo=bar
file.php contents:
<?php
print_r($_GET);
?>
You get
Array
(
[foo] => bar
)
If you want to access the element at 0, try file.php?0=foobar.
You can also use a foreach or for loop and simply break after the first element (or whatever element you happen to want to reach):
foreach($_GET as $value){
echo($value);
break;
}
Nope -- they are mapped by key value pairs. You can iterate the they KV pair into an indexed array though:
foreach($_GET as $key => $value) {
$getArray[] = $value;
}
You can now access the values by index within $getArray.
As another weird workaround, you can access the very first element using:
print $_GET[key($_GET)];
This utilizes the internal array pointer, like reset/end/current(), could be useful in an each() loop.