How to get option value from option label of a specific attribute

Question

I'm looking for having attribute option value from its label
Indeed I have a list of labels ans I want to generate their value s of each one.

Answer 1

1. First load your product attribute from its attribute code

   /** \Magento\Eav\Model\Config $eavConfig */

   /** @var \Magento\Catalog\Model\ResourceModel\Eav\Attribute $eavAttribute */ $productAttribute = $this->eavConfig->getAttribute(\Magento\Catalog\Model\Product::ENTITY, $attributeCode);

2. Then, load all its options:

   if (is_object($productAttribute) && $productAttribute->usesSource()) {
                   $allOptions = $productAttribute->getSource()->getAllOptions();
   

   }

3. Finally, find the option value from the label:

   /** Magento\Eav\Model\Entity\Attribute\Source\Table $eavSourceTable */

   $attributeTable = $eavSourceTable->setAttribute($attribute); $allOptions = $eavSourceTable->getAllOptions(false);

       foreach ($allOptions as $option) {
           if ($option['label'] == $label) {
               return $option['value'];
           }
       }
   
       $count = count($allOptions) +1;
   
       $data['option']['value']['option_' . $count] = [$label,''];
       $attribute->addData($data);
       $attribute->getResource()->save($attribute);
   
       $attributeTable        = $eavSourceTable->setAttribute($attribute);
       $options               = $eavSourceTable->getAllOptions(false);
   
       foreach ($options as $option) {
           if ($option['label'] == $label) {
               return $option['value'];
           }
       }
   

all this code, will need to be part of a class. I imagine you see from there where to put this code and where to declare the dependencies for it