foreach() variable arrays within variable array

Question

How can I retrieve all of the values from variable arrays within a variable array?

EDIT: I most likely don't know how to explain it well, but I want to know how I can display the values in $oranges and $melon within $variables. I thought it would be as simple as setting variables and placing them into an array but it returns "Array".

Example:

<?php 
$oranges = array("0","1");
$melon = array("2","3");


  $variables = array($oranges,$melon);
  $i = 1;


 foreach ($variables as $var) {
 $name = "txt".$i;
 echo "<input type='text' name='".$name."' value='".$var."' />";
 $i++;
 echo "<input type='file' name='image'>";

 } 


 ?>

what ?? sometimes i am asking myself : am i tired or questions are "non qualified questions" ?? ;) Please specify more what you are trying to do and the result expected — user2196728
– user2196728, Commented Dec 3, 2013 at 1:41
What are you expecting as result? It will help us to understand... — zeflex
– zeflex, Commented Dec 3, 2013 at 1:44
Please, explain, what output do you want to get. What is $name? — user4035
– user4035, Commented Dec 3, 2013 at 1:44
I like that you edited your comment to a more courteous one lol — JJJ
– JJJ, Commented Dec 3, 2013 at 1:44

S.Thiongane · Accepted Answer · 2013-12-03 01:51:18Z

1

Retrieving values of an array within another equals to retrieve a value from one single array. You just have to know what you want to do.

Suppose we have array $A and array $A1 and $A2 inside $A. foreach ($A as $innerArray) ... $innerArray the first inner array for the first loop, then the second etc ... If you want to get $innerArray values, make another loop, or get them directly if you already know the keys.

Exemple : here are your vars:

$oranges = array("0","1");
$melon = array("2","3");

$variables = array($oranges,$melon);

Retrieve value of single array

echo $oranges[0]; // prints 0
echo $melon[1]; // prints 3

Retrieve values from array within another

foreach ($variables as $var) {
 $name = "txt".$i;
 echo "<input type='text' name='".$name."' value='".$var["INDEX"]."' />"; // INDEX must be an existing key in $oranges or $melon
 $i++;
 echo "<input type='file' name='image'>";

 }

answered Dec 3, 2013 at 1:51

S.Thiongane

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1 Comment

JJJ Over a year ago

Your first sentence made it click for me. I added two input elements and gave them the following values: $var[0] & $var[1]. You rock bro.

dockeryZ · Accepted Answer · 2013-12-03 02:03:37Z

1

According to your code

$oranges = array("zero","one");
$melon = array("two","three");
$variables = array($oranges,$melon);
$i = 1;


 foreach ($variables as $var) {

     // $var[0] will contain "zero"
     // $var[1] will contain "one"

     //When $i increments to 2 on the next loop
     // $var[0] will contain "two"
     // $var[1] will contain "three"
 }

If you want to access these values without a loop, it is as simple as

$variables[0][0] --->  "zero"
$variables[0][1] --->  "one"
$variables[1][0] --->  "two"
$variables[1][1] --->  "three"

answered Dec 3, 2013 at 2:03

dockeryZ

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1 Comment

JJJ Over a year ago

This is very good stuff. Kinda confusing for me at first, but it all makes sense now. Thank you :)

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