Getting the key inside a PHP foreach loop in simple associative array [duplicate]

Question

After years of confusion I am trying to get to grips with PHP arrays and especially in combination with foreach loops.

There are various similar questions but I am really trying to understand why this is NOT working rather than make it work per se (will be using lots of foreach loops and arrays in more complicated stuff shortly).

$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"37");

Have a simple foreach loop:

foreach ($age as $ages )
{
    n();n();
    echo($ages);
    n();
    $v="volvo";
    $key = key($age);
    if ($age["Ben"]==$ages)
    {
        echo "<BR><BR>Result is  $key is $ages <BR>";
    }
}

Output is:

35
37
Result is Ben is 37 
37
Result is Ben is 37

All fine but I was expecting the last name to be Joe.

I thought that a foreach looped through each array value pair as a KEY VALUE pair. So why am I getting Ben twice?

uri2x · Accepted Answer · 2015-08-27 22:26:03Z

1

Use foreach in the following way: foreach ($age as $name=>$personAge )

answered Aug 27, 2015 at 22:26

uri2x

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1 Comment

BeNice Over a year ago

Thanks have seen that but trying to understand what was going on in the original. What was I accessing by my original ` $key = key($age)

. Why Ben as answer. It looped twice with value 37...On the third time the VALUE was 37 but it came from Joe... Yes I can make it work using a

var =>var` form but still confused. Thanks for the pointer.

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