Athugaðu gildi dálk er í borð löggilding laravel

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laravel athuga hvort borð hefur dálk

if (Schema::hasTable('users')) {
    // The "users" table exists...
}

if (Schema::hasColumn('users', 'email')) {
    // The "users" table exists and has an "email" column...
}
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athugaðu hvort dálk hefur gildi í laravel mælskur

->where(function ($query) {
  $query->whereNull('exam_ends_at')
    ->orWhere('exam_ends_at', '>', Carbon::now());
})

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