How can I use array_replace inside foreach loop? - arrays

Question

colums_arr:
array:4 [▼
0 => "id"
1 => "name"
2 => "productgroup"
3 => "category"
]
fields:
{#9767 ▼
+"id": array:9 [▶]
+"name": array:8 [▼
"fieldName" => "name"
]
+"productgroup": array:19 [▼
"fieldName" => "productgroup"
"mappedBy" => null
]
+"category": array:19 [▼
"fieldName" => "category"
"mappedBy" => null
]
}
What I want to do is, whenever in fields mappedBy exists for the element, I want to add name to the value. So as a result columns_arr should look like this:
array:4 [▼
0 => "id"
1 => "name"
2 => "productgroup.name"
3 => "category.name"
]
This is my approach:
foreach ($fields as $field) {
$MappedBy = isset($field['mappedBy']);
if($MappedBy != true){
$class_field = $field['fieldName'];
$key = array_search($field['fieldName'],$input);
$replace=array($key=>$class_field.".name");
$columns_arr = (array_replace($input,$replace));
}
}
The problem is, that my result is now:
array:4 [▼
0 => "id"
1 => "name"
2 => "productgroup"
3 => "category.name"
]
Why is name not added to productgroup?

Answer 1

I couldn't really answer your question, it's a bit unclear what you're doing and where your values are coming from etc. so I tried to rebuild your arrays and this is what I got without using array_search:
<?php
$columns = array(0 => "id", 1 => "name", 2 => "productgroup", 3 => "category");
$fields = array("id" => 9, "name" => array("fieldName" => "name"), "productgroup" => array("fieldName" => "productgroup", "mappedBy" => null), "category" => array("fieldname" => "category", "mappedBy" => null));
foreach ($fields as $key => $field) {
if($key !== "id" && $key !== "name"){
if(!isset($field['mappedBy'])){
foreach($columns as $ckey => $column){
if($column === $key){
$columns[$ckey] = $column.".name";
}
}
}
}
}
var_dump($columns);
var_dump outputs:
array(4) { [0]=> string(2) "id" [1]=> string(4) "name" [2]=> string(17) "productgroup.name" [3]=> string(13) "category.name" }

Answer 2

foreach ($fields as $key => $field) {
$MappedBy = isset($field['mappedBy']);
if($MappedBy != true){
$columns_arr[$key] = $field['fieldName'].".name";
}
}
You need to overwrite the correct key of your array like this.