Insert Data into Mysql from PHP from a nested foreach loop

Question

I'm trying to enter data fetched from a json into a database. I have fetched the data as a multidimensional array and used a foreach loop to loop through the arrays.

I'm trying to insert this data into a mysql database but I keep getting an error Error: Field 'summary' doesn't have a default value .

My database table is called articles in a database called tracking and has the following fields: article_id, url, domain, favicon, title, summary, likes, tweets, plusones, image, category

my php file is called json_parser.php and it is as follows

<?php
define('DB_NAME', 'tracking');
define('DB_USER', 'xxxxxxxxxxx');
define('DB_PASSWORD', 'xxxxxxxxx');
define('DB_HOST', 'localhost');

$link = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD);

if (!$link){
    die('Could not connect: ' . mysql_error());
}

$db_selected = mysql_select_db(DB_NAME, $link);

if(!$db_selected){
    die('Cannot use '. DB_NAME . ': ' .mysql_error());
}

$url = "http://digitalrand.net/api/url_data/?key=abacus&pass=aba123cuxza%";
$json = file_get_contents($url);
$obj = json_decode($json, true);

foreach($obj as $article_array){

    $url = $article_array['url'];
    $domain = $article_array['domain'];
    $favicon = $article_array['favicon'];
    $title = $article_array['title'];
    $category = $article_array['category'];
    echo $category . "<br>";
    echo $domain . "<br>";
    echo $favicon . "<br>";
    echo $title . "<br>";
    echo $url . "<br>";

    $sql = 'INSERT INTO articles '.
               '(url, domain, favicon, title) '.
               'VALUES ( "$url", "$domain","$favicon","$title" )';
    if (mysql_query($sql)){
        echo "success.......";
    }


    if(!mysql_query($sql)){
       die('Error: ' . mysql_error());
    }

    $large_summary = $article_array['summary'];
    foreach ($large_summary as $summary){
        mysql_query("INSERT INTO articles(summary) VALUES('$summary')");
        echo "$summary <br>";
    }
    $images = $article_array['images'];
    foreach ($images as $image){        
        $image_first= reset($image);
        echo $image_first;
        mysql_query("INSERT INTO articles(image) VALUES($image_first)");
        echo "<img src=$image_first>";
    }
    $social_shares = $article_array['social_shares'];

    foreach($social_shares as $social_share=>$include){
        echo $social_share . ": " . $include . "<br>";
    }

    $entities = $article_array["entities"];

    foreach($entities as $entity_cat=>$entities_arr){
        foreach($entities_arr as $key=>$entity){
            echo $entity_cat.' >> '.$entity. "<br>";
        } 
    }
}   

?>

How do I loop through the array items and display them on appropriate fields

Answer 1

First of all, you have an error in your code :

foreach ($large_summary as $summary){ mysql_query("INSERT INTO articles(summary) VALUES($summary)"); echo "$summary
"; }

foreach ($large_summary as $summary){ mysql_query("INSERT INTO articles(summary) VALUES('$summary')"); echo "$summary
"; }

Then, keep in mind that you are INSERTING row with only (url, domain, favicon, title) fields, and then some rows with only (summary) and then other one with only (image) .
I think you wan't to insert into the same row no?

Then if you wan't to make it works, you have to set a default value :

ALTER TABLE `articles` CHANGE `summary` `summary` TEXT NULL DEFAULT NULL;

[EDIT to answer to the Mutuma comment]

Your database isn't set correctly. You have few sumaries for one group of (url, domain, favicon, title) .

So you have to create another table, like summaries with (id, ref_article, summary) ...
And it hte same for images !

Please reconsider the base structure.