error data in loop foreach does'nt display good syntax - php

Question

I don't understand why in my foreach loop I can't use
$products_option_value['products_option_value_id'] for example. I must use
$option['products_option_value']['products_option_value_id'] to display the good result else I have just a value
Below the elements
var_dump($options_array);
array (size=7)
0 =>
array (size=7)
'products_option_id' => string '213' (length=3)
'products_option_value' =>
array (size=13)
'products_option_value_id' => string '171' (length=3)
'option_value_id' => string '179' (length=3)
'name' => string 'S' (length=1)
'image' => null
'quantity' => string '100' (length=3)
'subtract' => string '0' (length=1)
'price' => string '1.0000' (length=6)
'price_prefix' => string '+' (length=1)
'weight' => string '0.00' (length=4)
'weight_prefix' => string '+' (length=1)
'customers_group_id' => string '99' (length=2)
'products_option_model' => string '99' (length=2)
'option_tax_class_id' => string '99' (length=2)
'option_id' => string '40' (length=2)
'name' => string 'Taille' (length=6)
'type' => string 'select' (length=6)
'value' => null
'required' => null
etc
foreach ($options_array as $option) {
foreach ($option['products_option_value'] as $products_option_value) {
var_dump($products_option_value);
}
}
the result is :
var_dump($option); result
array (size=7)
'products_option_id' => string '213' (length=3)
'products_option_value' =>
array (size=13)
'products_option_value_id' => string '171' (length=3)
'option_value_id' => string '179' (length=3)
'name' => string 'S' (length=1)
'image' => null
'quantity' => string '100' (length=3)
'subtract' => string '0' (length=1)
'price' => string '1.0000' (length=6)
'price_prefix' => string '+' (length=1)
'weight' => string '0.00' (length=4)
'weight_prefix' => string '+' (length=1)
'customers_group_id' => string '99' (length=2)
'products_option_model' => string '99' (length=2)
'option_tax_class_id' => string '99' (length=2)
'option_id' => string '40' (length=2)
'name' => string 'Taille' (length=6)
'type' => string 'select' (length=6)
'value' => null
'required' => null
var_dump($products_option_value) result
products_info_options_new.php:84:string '171' (length=3)
products_info_options_new.php:84:string '179' (length=3)
products_info_options_new.php:84:string 'S' (length=1
etc

Answer 1

http://php.net/manual/en/control-structures.foreach.php
You should use foreach($array as $key => $value) when iterating trough arrays that have keys. (I mean arrays such as this: array("key" => $value), and this is also your array)