unset element property from array without reference

Question

I have the following function which unset array element's property. During this process, it also unsets from the original array.

Is there any way to update the array element without effecting the original array?

private function AccumulateRoles($Roles) {
    $RoleArray = [];
    foreach($Roles as $key => &$Role) {
        array_push($RoleArray, $Role);
        if(isset($RoleArray[$key]->children)) {
           unset($RoleArray[$key]->children); // This effects $Role also.
        }
    }
}

unset($RoleArray[$key]->children); // This effects $Role also.

I don't want to change $Role

Don't use references and clone the objects.

axiac
– axiac

2017-08-29 15:05:37 +00:00
Commented Aug 29, 2017 at 15:05 — axiac
– axiac, Commented Aug 29, 2017 at 15:05

Edison Biba · Accepted Answer · 2017-08-29 15:07:42Z

1

You are using references in your foreach so just remove & and it will work like you want.

private function AccumulateRoles($Roles) {
    $RoleArray = [];
    foreach($Roles as $key => $Role) {
        array_push($RoleArray, $Role);
        if(isset($RoleArray[$key]->children)) {
           unset($RoleArray[$key]->children); // This effects $Role also.
        }
    }
}

Here you have a link to read more about references

edited Aug 29, 2017 at 15:07

answered Aug 29, 2017 at 15:06

Edison Biba

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2 Comments

Pankaj Over a year ago

Still facing same issue.

Edison Biba Over a year ago

When you call AccumulateRoles($variable) do you use & like AccumulateRoles(&$variable) ?

Pankaj · Accepted Answer · 2017-08-29 15:16:14Z

0

Below worked for me perfectly by adding clone

private function AccumulateRoles($Roles) {
    $RoleArray = [];
    foreach($Roles as $key => $Role) {
        array_push($RoleArray, clone $Role);
        if(isset($RoleArray[$key]->children)) {
           unset($RoleArray[$key]->children); // This effects $Role also.
        }
    }
}

answered Aug 29, 2017 at 15:16

Pankaj

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