Foreach over multiple arrays

Question

I have two arrays, I want to print values from both, if the key is present in $array_two

example code :

$array_one = [
    'one' => 'foo',
    'two' => 'bar'
];

$array_two = [
    'one' => 'view_foo',
];

I use this code

foreach($array_one as $array_key_one => $val_array_one)
{
    foreach($array_two as $array_key_two => $val_array_two)
    {
        if($array_key_one == $array_key_two)
        {
            echo $val_array_two;
        }
        else
        {
            echo $val_array_one;
        }
    }
}

But i want to use only one foreach

The desired results

bar, view_foo

How to solve it?

egig · Accepted Answer · 2015-08-28 04:24:28Z

4

What if:

foreach($array_one as $array_key_one => $val_array_one)
{
    if(isset($array_two[$array_key_one] ))
    {
       echo $array_two[$array_key_one];
    }
    else
    {
       echo $val_array_one;
    }
}

edited Aug 28, 2015 at 4:24

answered Aug 28, 2015 at 4:03

egig

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Comments

Fabian Schmengler · Accepted Answer · 2015-08-28 05:32:47Z

1

You could intersect the array keys and then iterate over the results:

foreach (array_intersect_key($array1, $array2) as $key => $value1) {
    echo $value1, ' ', $array2[$key], ' ' ;
}

array_intersect_key returns an array containing all the entries of array1which have keys that are present in all the arguments.

answered Aug 28, 2015 at 5:32

Fabian Schmengler

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