php update values of an array based on other array with the same key

Question

I have the following scenario:

$starterArray = array ('192.168.3.41:8013'=>0,'192.168.3.41:8023'=>0,'192.168.3.41:8033'=>0);

In the requirement I have another array which counts some events of the application, this array uses the same keys as my first array, but values can change), so at the end I could have something like:

$processArray = array ('192.168.3.41:8013'=>3,'192.168.3.41:8023'=>5,'192.168.3.41:8033'=>7);

I want to update the values of my starter array with the values of the process array, for instance, at the end, I should have:

$starterArray = array ('192.168.3.41:8013'=>3,'192.168.3.41:8023'=>5,'192.168.3.41:8033'=>7);

I know this can be achieved by using $starterArray = $processArray;

Then in some moments, I would need to sum some units to the values of my array, for example +1 or +2:

It should be something like the following?

foreach ($starterArray as $key => $value) {
    $starterArray[$value] = $starterArray[$value]+1;
}

Then, for my process array, I need to set the values to 0

foreach ($processArray as $key => $value) {
    $processArray[$value] = 0;
}

This is what I tried but it is not working, if somebody could help me I will really appreaciate it. Thanks in advance.

PD: I know these are strange requirements, but that's what I am asked to do...

The PHP manual has examples for foreach that should help you. In particular, you are using [$value] instead of [$key]. — Jon
– Jon, Commented Jun 14, 2013 at 21:52

vascowhite · Accepted Answer · 2013-11-17 17:50:55Z

1

You are almost there:-

foreach ($processArray as $key => $value) {
    $starterArray[$key] = $value +1;
}

and then:-

foreach ($processArray as $key => $value) {
    $processArray[$key] = 0;
}

However, you could do this all in one loop:-

foreach ($processArray as $key => $value) {
    $starterArray[$key] = $value +1;
    $processArray[$key] = 0;
}

edited Nov 17, 2013 at 17:50

answered Jun 14, 2013 at 21:54

vascowhite

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Vedran Šego · Accepted Answer · 2013-06-14 21:52:05Z

1

You need to put $key in brackets, not $value.

Or, you can do:

foreach ($starterArray as $key => &$value) {
    $value++; /* put here whatever formula you want */
}

answered Jun 14, 2013 at 21:52

Vedran Šego

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Comments

Orangepill · Accepted Answer · 2013-06-14 21:52:45Z

1

foreach ($starterArray as $key => $value) {
    $starterArray[$key] = $value+1;
    // or $starterArray[$key] = 0;
}

answered Jun 14, 2013 at 21:52

Orangepill

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