How would I store JSON data in a flat file database?

Question

I need to store some data in a JSON file. I know how to use json_encode but I can't find any information on how to write the encoded data into an external file. Here's a pice of code that prints out the encoded data, but how can I write the data in a separate JSON file?

<?php
$array1 = array('key1' => "data1",
        'key2' => "data2",
        'key3' => "data3",
        'key4' => "data4",
        'key5' => "data5");

echo json_encode($array1);
?>

`file_put_contents('file.json', json_encode($array1));`? http://php.net/manual/en/function.file-put-contents.php — gen_Eric, Feb 21 '13 at 19:22
your question amounts to writing stuff on a file... you can't even look that up? — Leo supports Monica Cellio, Feb 21 '13 at 19:22
use PHP PDO to store it. Consider PostgreSQL with HStore to store it. — Neil McGuigan, Feb 21 '13 at 19:59
For some reason I was thinking it needed to be more complicated than "just writing stuff on a file." — Pixel, Feb 22 '13 at 00:27

score 1 · Answer 1 · answered Feb 21 '13 at 19:22

1

file_put_contents('array1.json', json_encode($array1));

answered Feb 21 '13 at 19:22

ozahorulia

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score 0 · Answer 2 · answered Feb 21 '13 at 19:22

Use fwrite(...)

From DOCs:

// Let's make sure the file exists and is writable first.
if (is_writable($filename)) {

    // In our example we're opening $filename in append mode.
    // The file pointer is at the bottom of the file hence
    // that's where $somecontent will go when we fwrite() it.
    if (!$handle = fopen($filename, 'a')) {
         echo "Cannot open file ($filename)";
         exit;
    }

    // Write $somecontent to our opened file.
    if (fwrite($handle, $somecontent) === FALSE) {
        echo "Cannot write to file ($filename)";
        exit;
    }

    echo "Success, wrote ($somecontent) to file ($filename)";

    fclose($handle);

} else {
    echo "The file $filename is not writable";
}
?>

Or just use file_put_contents(...)

file_put_contents($filname, $data);

How would I store JSON data in a flat file database?

2 Answers2