Sabine wrote:
Hello to all,
is it possible to assign values to the array for which I do the
foreach-loop?
foreach ($_SESSION['arr1'] as $arr1) {
foreach ($_SESSION['arr2'] as $arr2) {
if ($arr1['id'] == $arr2['id']) {
$arr1['selected'] = true;
}
} }
I think $arr1 is only a temp-var, so the assignment won't reflect on
$_SESSION['arr1'] . Is that right?
Surely I can do it with a for-loop, but those arrays are a bit complex
and a foreach would be much easier to read.
Thanks in advance for your answers
Sabine
Short answer is no.
foreach works on a copy of the array, so any chnges you make inside the
foreach loop are "lost" once you're outside of it. Although *inside* the
foreach the changes *are* valid.
What you can do is:
$newArray = array();
foreach ($_SESSION['arr1'] as $arr1) {
foreach ($_SESSION['arr2'] as $arr2) {
if ($arr1['id'] == $arr2['id']) {
$newArray['selected'] = true;
}
} }
Then reference $newArray instead of $arr1.
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