Arrange JSON data saving duplicates into one row - php

Question

Good morning guys!
I'm having a hard time trying to figure out how to arrange the following JSON:
{
"showElement": "1",
"degrees": [{
"Name": "Bachelor in Psychology",
"Number": "53",
"degree": "Bachelor's Degree"
}, {
"Name": "Certificate",
"Number": "56",
"degree": "Certificate"
}, {
"Name": "High School Diploma",
"Number": "28",
"degree": "High School"
}, {
"Name": "Bachelor in Sociology",
"Number": "109",
"degree": "Bachelor's Degree"
}]
}
Into this:
{
"showElement": "1",
"degrees": [{
"Name": "Bachelor in Psychology", "Bachelor in Sociology",
"Number": "53","109",
"degree": "Bachelor's Degree"
}, {
"Name": "Certificate",
"Number": "56",
"degree": "Certificate"
}, {
"Name": "High School Diploma",
"Number": "28",
"degree": "High School"
}]
}
Basically, put the same degrees in one place and have all the names of said degree separated by a comma
I already have this JSON decoded into a variable:
$data = json_decode($topDegrees[1]["diplomas"],true);
Thanks in advance for your help!

Answer 1

I came up with this
$json = <<<JSON
{
"showElement": "1",
"degrees": [{
"Name": "Bachelor in Psychology",
"Number": "53",
"degree": "Bachelor's Degree"
}, {
"Name": "Certificate",
"Number": "56",
"degree": "Certificate"
}, {
"Name": "High School Diploma",
"Number": "28",
"degree": "High School"
}, {
"Name": "Bachelor in Sociology",
"Number": "109",
"degree": "Bachelor's Degree"
}]
}
JSON;
$data = json_decode( $json, true );
$degrees = $data['degrees'];
$names = array_column($degrees, 'degree');
$count = array_count_values($names);
$duplicates = array_filter($count, function($var) {
return $var > 1;
});
foreach ( array_flip($duplicates) as $degree ) {
$filter = array_filter($degrees, function($var) use ($degree) {
return ( $var['degree'] === $degree );
});
$names = [];
$numers = [];
foreach ( $filter as $item ) {
$names[] = $item['Name'];
$numbers[] = $item['Number'];
}
$indices = array_keys($filter);
$index = array_shift($indices);
$degrees[$index]['Name'] = $names; // = join(', ', $names);
$degrees[$index]['Number'] = $numbers; // = join(', ', $numbers);
while ( count($indices) ) {
unset($degrees[array_shift($indices)]);
}
}
$data['degrees'] = $degrees;
print_r(json_encode($data));
// {"showElement":"1","degrees":[{"Name":["Bachelor in Psychology","Bachelor in Sociology"],"Number":["53","109"],"degree":"Bachelor's Degree"},{"Name":"Certificate","Number":"56","degree":"Certificate"},{"Name":"High School Diploma","Number":"28","degree":"High School"}]}
Your wanted json output is not valid, i have made an array structure in its place. If you want comma separated text, just use the join statements I've commented out.

Answer 2

$str = '{
"showElement": "1",
"degrees": [{
"Name": "Bachelor in Psychology",
"Number": "53",
"degree": "Bachelor\'s Degree"
}, {
"Name": "Certificate",
"Number": "56",
"degree": "Certificate"
}, {
"Name": "High School Diploma",
"Number": "28",
"degree": "High School"
}, {
"Name": "Bachelor in Sociology",
"Number": "109",
"degree": "Bachelor\'s Degree"
}]
}';
$str_arr = json_decode($str);
foreach($str_arr->degrees as $k=>$val){
if($val->degree == 'Bachelor\'s Degree'){
$new['Bachelor'][] = $val;
}else{
$new[] = $val;
}
}
foreach($new['Bachelor'] as $aa){
$nameStr[]= $aa->Name;
$numStr[] = $aa->Number;
}
$nameStr = implode(', ', $nameStr);
$numStr = implode(', ', $numStr);
$degree = 'Bachelor\'s Degree';
$new[] = (object) array($nameStr, $numStr, $degree);
unset($new['Bachelor']);
echo $json = json_encode($new);
echo "<pre>"; print_r(json_decode($json));
Hope this helps.
Demo here

Answer 3

This should do it:
<?php
$json = '{
"showElement": "1",
"degrees": [{
"Name": "Bachelor in Psychology",
"Number": "53",
"degree": "Bachelors Degree"
}, {
"Name": "Certificate",
"Number": "56",
"degree": "Certificate"
}, {
"Name": "High School Diploma",
"Number": "28",
"degree": "High School"
}, {
"Name": "Bachelor in Sociology",
"Number": "109",
"degree": "Bachelors Degree"
}]
}';
$items = json_decode($json, true);
$orderedItems = [];
$final = ['showElement' => 1];
foreach ($items['degrees'] as $item) {
$orderedItems[$item['degree']]['Name'][] = $item['Name'];
$orderedItems[$item['degree']]['Number'][] = $item['Number'];
$orderedItems[$item['degree']]['degree'] = $item['degree'];
}
foreach ($orderedItems as $order) {
$order['Name'] = (count($order['Name']) > 1) ? $order['Name'] : $order['Name'][0];
$order['Number'] = (count($order['Number']) > 1) ? $order['Number'] : $order['Number'][0];
$final['degrees'][] = [
'Name' => $order['Name'],
'Number' => $order['Number'],
'degree' => $order['degree']
];
}
echo json_encode($final);