[英]Error while uploading multiple images for a product in Laravel
Im receiving this error, "foreach() argument must be of type array|object, null given" but with a successful upload, how can resolve it.我收到此错误,“foreach() 参数必须是数组|对象类型,null 给定”但是上传成功,如何解决它。
foreach ($this->attribute_values as $key=>$attribute_value) {
$avalues = explode(",", $attribute_value);
foreach ($avalues as $avalue) {
$attr_value = new AttributeValue();
$attr_value->product_attribute_id = $key;
$attr_value->value = $avalue;
$attr_value->product_id = $product->id;
$attr_value->save();
}
}
Well I wrapped the code in an if statement like this.好吧,我将代码包装在这样的 if 语句中。
if (is_array($this->attribute_values)){
foreach ($this->attribute_values as $key => $attribute_value) {
$avalues = explode(",", $attribute_value);
foreach ($avalues as $avalue) {
$attr_value = new AttributeValue();
$attr_value->product_attribute_id = $key;
$attr_value->value = $avalue;
$attr_value->product_id = $product->id;
$attr_value->save();
}
}
}
if (is_array($this->attribute_values)) {
$attr_values = [];
foreach ($this->attribute_values as $key => $attribute_value) {
$avalues = explode(",", $attribute_value);
if (is_array($avalues)) {
foreach ($avalues as $avalue) {
$attr_values['product_attribute_id'] = $key;
$attr_values['value'] = $avalue;
$attr_value['product_id'] = $product->id;
}
AttributeValue::insert($attr_values);
}
}
}
$main_data = new Collection($this->attribute_values);
$main_data = $main_data->toArray();
foreach ($main_data as $key=>$attribute_value) {
$avalues = explode(",", $attribute_value);
foreach ($avalues as $avalue) {
$attr_value = new AttributeValue();
$attr_value->product_attribute_id = $key;
$attr_value->value = $avalue;
//$attr_value->product_id = $product->id;
$attr_value->save();
}
}
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