Can't access variable within class instance

Question

I can't seem to access $module within the Breadcrumbs instance. How can I access it?

$modules = Module::all();

foreach ($modules as $module)
{
    Breadcrumbs::register($module->name, function($b)
    {
        $b->parent('modules');
        $b->push($module->display_name, url('/module/' . $module->name));
    });
}

Community · Accepted Answer · 2017-05-23 11:50:51Z

2

This is a variable scope issue. To be able to access local variables inside a closure you have to inject them with use(...)

Breadcrumbs::register($module->name, function($b) use ($module)
{
    $b->parent('modules');
    $b->push($module->display_name, url('/module/' . $module->name));
});

This answer provides a very good explanation of the whole topic

edited May 23, 2017 at 11:50

CommunityBot

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answered Mar 3, 2015 at 10:26

lukasgeiter

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Comments

Blaatpraat · Accepted Answer · 2015-03-03 10:26:59Z

0

$modules = Module::all();

foreach ($modules as $module)
{
    Breadcrumbs::register($module->name, function($b) use ($module)
    {
        $b->parent('modules');
        $b->push($module->display_name, url('/module/' . $module->name));
    });
}

Hence the use keyword.

answered Mar 3, 2015 at 10:26

Blaatpraat

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