Adding dynamic data to a json literal string

Question

I have this json literal string

{  
    "properties_form_data": {  
        "user_id":"edhdh83883737364623",
        "property_owner":"rammstein",   
        "property_name": "rockers",   
        "property_address":"hard metal",
        "property_coordinates": true,  
        "property_type": true,  
        "property_country": true,  
        "property_district": true,  
        "property_region": "description",
        "property_city": "description",
        "property_profile": "description",
        "checkin_time": "description",
        "checkin_out_time": "description which is "afraid"",
        "pets_allowed": false,
        "age_restriction_for_checkin": true,
        "property_images":{"property_s3_image_links":"1.jpg,2.jpg,3.jpg","date_updated":"95356373773"},
        "property_amenities":{"together":true,"prospering":true,"touring_right_now":false},
        "sorrounding_areas":[{
            "album_id": "23883838dhhskk89968654s",
            "album_name":"Rammstein",
            "date_taken":"35356373773"
        }],
        "restaurants":[{
            "album_id": "23883838dhhskk89968654s",
            "album_name":"Rammstein",
            "date_taken":"35356373773"
        }],
        "date_inserted":"hard metal", 
        "updated_on": true      
    }  
}

I am getting some data from the client that i want to add to the string then encode it and store it away.I am receiving several data sets as arrays and i wanted to add that as well by looping and encoding the resulting json literal string

  <?php
    $no = '';
$h = rand(6,99999);
$newarr = array(6,9,8,0,7);
print_r($newarr);

for ($x = 0; $x <= 10; $x++) {
         $no = '{
                    "album_id": "'.$x.'",
                    "album_name":"Rammstein",
                    "date_taken":"35356373773"
                }';
        }
$jl ='{  
    "properties_form_data": {  
        "user_id":"edhdh83883737364623",
        "property_owner":"rammstein",   
        "property_name": "'.$h.'",   
        "property_address":"hard metal",
        "property_coordinates": true,  
        "property_type": true,  
        "property_country": true,  
        "property_district": true,  
        "property_region": "description",
        "property_city": "description",
        "property_profile": "description",
        "checkin_time": "description",
        "checkin_out_time": "description which is "afraid"",
        "pets_allowed": false,
        "age_restriction_for_checkin": true,
        "property_images":{"property_s3_image_links":"1.jpg,2.jpg,3.jpg","date_updated":"95356373773"},
        "property_amenities":{"together":true,"prospering":true,"touring_right_now":false},
        "sorrounding_areas":['.$no.'],
        "restaurants":[{
            "album_id": "23883838dhhskk89968654s",
            "album_name":"Rammstein",
            "date_taken":"35356373773"
        }],
        "date_inserted":"hard metal", 
        "updated_on": true      
    }  
}';
echo '<pre>';
echo $jl;
echo '</pre>';
    ?>

php complains that i can't use the for loop from inside the json literal which is a problem because i have several arrays i want to add. How can i add the array data in the json literal string?.

Don't build JSON manually. Decode it, add new elements, re-encode. — El_Vanja
– El_Vanja, Commented May 1, 2021 at 20:31
Does this answer your question? Add new data into PHP JSON string — El_Vanja
– El_Vanja, Commented May 1, 2021 at 20:33
Aside from that, you're trying to use echo inside an assignment (illegal) and you're trying to use + to concatenate (mixing up JS and PHP syntax). — El_Vanja
– El_Vanja, Commented May 1, 2021 at 20:34
? no it doesn't. Specifically, i wanted to add in array data for a very specific use case. — Gandalf
– Gandalf, Commented May 1, 2021 at 20:34
The + is an error i want to concatenta ewith dot, thanks for catching that. — Gandalf
– Gandalf, Commented May 1, 2021 at 20:34

Gandalf · Accepted Answer · 2021-05-01 22:59:01Z

Did form the json literal using an anonymous function and made sure it produces valid json by adding or omitting last element comma,based on the length of the array

 <?php
    $newarr = array(6,9,8,0,7);
    
      
    $of = function()
    {
    $h = rand(6,99999);
    $comma_resolution = '';
    $jl ='{  
        "properties_form_data": {  
            "user_id":"edhdh83883737364623",
            "property_owner":"rammstein",   
            "property_name": "'.$h.'",   
            "property_address":"hard metal",
            "property_coordinates": true,  
            "property_type": true,  
            "property_country": true,  
            "property_district": true,  
            "property_region": "description",
            "property_city": "description",
            "property_profile": "description",
            "checkin_time": "description",
            "checkin_out_time": "description which is afraid",
            "pets_allowed": false,
            "age_restriction_for_checkin": true,
            "property_images":{"property_s3_image_links":"1.jpg,2.jpg,3.jpg","date_updated":"95356373773"},
            "property_amenities":{"together":true,"prospering":true,"touring_right_now":false},
            "sorrounding_areas":[';
            echo $jl;
            $possible_array_length = 4;
            for ($x = 0; $x <= $possible_array_length; $x++) {
            if($x === $possible_array_length){
            $comma_resolution = '';
            }
            else{
            $comma_resolution = ',';
            }
             echo '{
                        "album_id": "'.$x.'",
                        "album_name":"Rammstein",
                        "date_taken":"35356373773"
            }'.$comma_resolution.'';
            }
            
            $second = '],
            "restaurants":[{
                "album_id": "23883838dhhskk89968654s",
                "album_name":"Rammstein",
                "date_taken":"35356373773"
            }],
            "date_inserted":"hard metal", 
            "updated_on": true      
        }  
    }';
    echo $second;
    };
    
    echo '<pre>';
    $of();
    echo '</pre>';
    ?>

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