I have a multidimensional array as such:
$food= array
(
array("Rye" =>1, "Wheat" =>4, "White" =>4 ),
array("Apple" =>2, "Orange"=>1, "Banana"=>5 ), <---data I want
array("Cheese"=>2, "Milk" =>1, "Cream" =>5 )
);
Is there a way I can use a foreach loop to loop through the 2nd child array (fruit data)?
Like this?
foreach($food as $produce) {
foreach($produce as $name => $value) {
echo "The produce $name has value: $value\n";
}
}
The first for loop just loops through the first array, it doesn't have significant keys we need, so I just get the reference to the value and store it in the value $produce
Then, we loop through the array that is $produce, but this time key and value are both significant.
That's why we use $name => $value in this loop, so we get both values we need.
Some prefer to always use $key => $value, but I prefer to give variables the name of the value they represent.
Now if you need a specific fruit, you could wrap it in a function to search for it
/**
* Returns the fruit name from supplied food array.
* @var $food array[array[string => value]]
* @var $fruitName string The name of the fruit you want
* @returns
**/
function findFruit($food,$fruitName) {
foreach($food as $produce) {
foreach($produce as $name => $value) {
if($name == $fruitName) {
return $value;
}
}
}
}
$quantityOfBananas = findFruit($food, "Banana");//5
You will have to use nested foreach,
foreach($food as $item){
foreach($item as $key => $value){
echo $key; //Rye
echo $value; // 1
}
}
To loop child array you have use two loops
<?php
$food= array
(
array("Rye"=>1,"Wheat"=>4,"White"=>4),
array("Apple"=>2,"Orange"=>1,"Banana"=>5),
array("Cheese"=>2,"Milk"=>1,"Cream"=>5)
);
foreach($food as $data){
foreach($data as $key=>$value){
echo "key=".$key." value=".$value.'<br>';
}
}
output will be
key=Rye value=1
key=Wheat value=4
key=White value=4
key=Apple value=2
key=Orange value=1
key=Banana value=5
key=Cheese value=2
key=Milk value=1
key=Cream value=5
Try this:
$food= array
(
array("Rye"=>1,"Wheat"=>4,"White"=>4),
array("Apple"=>2,"Orange"=>1,"Banana"=>5),
array("Cheese"=>2,"Milk"=>1,"Cream"=>5)
);
foreach($food as $key => $fruits){
if($key == 1){
foreach($fruits as $ke => $fruit){
echo $ke."-".$fruit."<br>";
}
}
}
PS: Your wheat has syntax error "Wheat"->4
you can use foreach inside the foreach (nested foreach) like below
foreach($food as $f)
{
foreach ($f as $fn => $sn)
{
echo $fn.$sn;
}
}
Since you know it's always the 2nd child, I would keep it simple and do something like this:
$fruits = $food[1];
foreach($fruits as $key => $value) {
// do something
}
There is no need for two foreach loops.
