Below is a array generated by a query builder.
$random_array = Array ( [0] => Array ( [text] => A great time was had by all! )
[1] => Array ( [text] => KILL SHOT )
[2] => Array ( [text] => How is it possible)
[3] => Array ( [text] => http://www.youtube.com/watch?v=KwGOZpbxU9g )
[4] => Array ( [text] => http://www.youtube.com/watch?v=KwGOZpbxU9g )
)
Currently i am doing like this to print the random value
print_r(array_rand($random_array,1));
This is printing the array key as 3 or 1 etc(random from above array).I want to print the value of the key and not the key.
e.g I want to print the random value like this "http://www.youtube.com/watch?v=KwGOZpbxU9g" or "A great time was had by all!" instead of 3 or 1 which is printing now.
Is it possible to do this.
You will have one more line of code as shown below:
$array_key = array_rand($random_array,1); //get the key
print_r( $random_array[$array_key] ); //use the key to print value
What about simply calling
$randNumber = rand(0,count($random_array))-1; //index in array starts with 0
print (string) $random_array[$randNumber];
Related
print_r($data) gives the below value, I am not sure about how to get the count value from the below
Array ( [result] => Array ( [0] => Array ( [_id] => [count] => 6 ) ) [ok] => 1 )
I want to get 6 as output
You may explictly access the array using its variable name then the keys
For example:
$data['result'][0]['count']
i print php array when it's empty it print 1
$addresses = $user->myFunction();
print_r(count($addresses['my_test']));
Array
(
[my_test] => Array
(
[test] => test
[test1] => test1
)
)
it print 2
when i print this
Array
(
[my_test] => Array
(
[] =>
)
)
i got 1
i don't know what is the problem here
How to print exact value of this?
Array count all element including empty ones. Your output is correct as you second array has 1 element.
Consider use array_filter to avoid them.
Example:
$a = array("" => "");
echo count($a). PHP_EOL; // echo 1
$a = array_filter($a);
echo count($a). PHP_EOL; // echo 0
In you case:
print_r(count(array_filter($addresses['my_test'])));
Array
(
[my_test] => Array
(
[test] => test
[test1] => test1
)
)
print_r(count($addresses['my_test'])); // it will show 2 cause you have 2 values inside my_test key.
print_r(count($addresses)); // it will show 1 cause you have one value inside main array
Array
(
[my_test] => Array
(
[] =>
)
)
print_r(count($addresses['my_test'])); // it will show 0 because you have 0 values inside my_test key.
print_r(count($addresses)); //it will show 1 because you have one value my_test inside your main array.
Hope it helps you clarify count function.
I'm using a form where the pair of inputs can be added per automatic. One store value in select and the other as input
After submit I receive the values in array and I need to associate them together. So all key values [0] belongs together and all [1] and so on.
Array
(
[issue] => Array
(
[0] => 2
[1] => 3
)
[qty] => Array
(
[0] => 1
[1] => 2
)
)
How can I do this using PHP?
Just use a simple foreach loop.
$combined = array();
foreach ($_POST["issue"] as $k=>$v) {
$combined[$k] = array($_POST["issue"][$k], $_POST["qty"][$k]);
}
print_r($combined);
I know this won't take much time for experts here. But still please help me out
My Array output is like this
Array ( [0] => 1 [1] => 37 [2] => 1035 ) 1
Array ( [0] => 1 [1] => 37 [2] => 1035 ) mystatusmessage1
Array ( [0] => 4 [1] => 37 [2] => 2925 ) 2
Array ( [0] => 4 [1] => 37 [2] => 2925 ) mystatusmessage2
What I would like to get it is in a single string value like this so that I can insert into database.
1,37,1035,1,mystatusmessage1
4,37,2925,2,mystatusmessage2
How can I achieve that. I'm trying to do with foreach but still I'm not able to do it.
Thanks,
Kimz
use implode function to make string from array for example
if you have array like Array('a','b','c');
implode(',',array('a','b','c') )
will return a,b,c as string
here first argument is your glue by which you want to join string
Here you go.
// Original array
$array = array(0 => 1, 1 => 37, 2 => 1035);
// $_POST array
$_POST = array(1,'mystatusmessage1');
// Jump to the end of array
end($array);
// Merge the post with original array
$newArr = array_merge($array,$_POST);
// Impode
echo implode(",",$newArr);
Repeat with other array.
I'm using a SESSION variable to hold items added to an ingredients page. I'm wondering how I can uniquely identify each key in the array.
I'm adding ingredients via the following and it's working fine.
$_SESSION['ingredients'][] = array($_POST['ingredient'],$_POST['qty']);
If I stick a few ingredients in there and print the array I get..
Array ( [0] => 1 [1] => 50 ) Array ( [0] => 2 [1] => 50 ) Array ( [0] => 3 [1] => 50 )
Where 1, 2 and 3 are the ingredient IDs.
I can remove ingredients from the array based on their ID no problem, but if I put the same ingredient in twice I won't be able to distinguish between them. I was wondering if I can add an incremental number to ID the key?
Each of the items in $_SESSION['ingredients'] already has a unique index (starting from 0 in your case). When you print your $_SESSION['ingredients'] array, you should get this:
Array ( [0] => Array ( [0] => 1 [1] => 20 ) [1] => Array ( [0] => 2 [1] => 20 ) [2] => Array ( [0] => 1 [1] => 10 ) )
Notice that each array combination has an index preceding it (starting at 0)
The following code demonstrates this:
<?php
session_start();
unset($_SESSION['ingredients']);
$_SESSION['ingredients'][] = array(1, 20);
$_SESSION['ingredients'][] = array(2, 20);
$_SESSION['ingredients'][] = array(1, 10); // adding the same ingredient again
print_r($_SESSION['ingredients']);
?>
Why not use the ingredient id as the key in the session array and then append each value to it as an element
$_SESSION['ingredients'][$_POST['ingredient']][] = $_POST['qty'];
This would give you
Array(
[1] => array(
[0] => 50,
[1] => 50
)
)
Just a thought, I don't know if this would work for your use case
change your inserted array to this:
$_SESSION['ingredients'][count($_SESSION['ingredients'])] = array($_POST['ingredient'],$_POST['qty']);
I use it in my program.