PHP - Create a json file from mysql - php

Question

I know my code below isn't the best way of doing what i'm trying to do here, but I need a way to remove just the double quotes from the key values only using PHP. I need to keep the double quotes inside the "src attribute" though!
Here is my PHP code:
$host = "localhost"; //Your database host server
$db = "root"; //Your database name
$user = "root"; //Your database user
$pass = "1234"; //Your password
$connection = mysql_connect($host, $user, $pass);
//Check to see if we can connect to the server
if(!$connection)
{
die("Database server connection failed.");
}
else
{
//Attempt to select the database
$dbconnect = mysql_select_db($db, $connection);
//Check to see if we could select the database
if(!$dbconnect)
{
die("Unable to connect to the specified database!");
}
else
{
$query = "SELECT * FROM playlist_builder";
$resultset = mysql_query($query, $connection);
$records = array();
$response = array(); //extra
//Loop through all our records and add them to our array
while($r = mysql_fetch_assoc($resultset))
{
$records[] = $r;
}
//Output the data as JSON
$json = json_encode($records, JSON_PRETTY_PRINT);
$json = str_replace('\\', '', $json);
$json = preg_replace('/"([a-zA-Z]+[a-zA-Z0-9_]*)":/','$1:',$json);
// $json = str_replace('"', "'", $json);
//NOTE: FOLDERS 'url' and 'file' SHOULD BE WRITABLE WITH PERMISSIONS - 777
//IN CASE 'url' FOLDER PLACED IN SERVER'S ROOT
//IF YOU'RE USING SOME FTP BROWSER CHANGE PERMISSIONS FOR 'url'
//FOLDER AND APPLY IT TO ALL ENCLOSED ITEMS
$data = 'var data = [{ tags: ';
$end = '}];';
$script = "// Call Slider function
$(window).load(function () {
$('#slideshow-slider').jSonSlider({
'loadallslides': false,
'auto': [true, '14000'],
'nextprev': false,
'circular': true,
'pagi': false,
'data': data
});
});";
file_put_contents('records.js', $data);
file_put_contents('records.js', $json, FILE_APPEND);
file_put_contents('records.js', $end, FILE_APPEND);
file_put_contents('records.js', $script, FILE_APPEND);
}
}
Here is my Output of my js file:
var data = [{ tags: [
{
id: "1",
volume: "volume1",
name: "a",
content: "<img src="../../../image1.jpg">",
css_animate: "fadeIn"
},
{
id: "2",
volume: "volume1",
name: "a",
content: "<img src="../../../image2.jpg">",
css_animate: "fadeIn"
},
{
id: "3",
volume: "volume1",
name: "a",
content: "<img src="../../../image3.jpg">",
css_animate: "fadeIn"
}
]}];
// Call Slider function
$(window).load(function () {
$('#slideshow-slider').jSonSlider({
'loadallslides': false,
'auto': [true, '14000'],
'nextprev': false,
'circular': true,
'pagi': false,
'data': data
});
});
Any help is really appreciated! :)

Answer 1

My recommendation would be to use Collection that comes with illuminate/support package. You can pass your associative array to the Collection's constructor, then map through it and return as json.
Example would be:
use Illuminate\Support\Collection;
$collection = new Collection($records);
$json = $collection->map(function(array $record) {
return [
id => $record['id'],
volume: $record['volume'],
name: $record['name'],
content: '<img src="../../../'.$record['image'].'">',
css_animate: "fadeIn"
];
})->toJson();

Answer 2

I understand you are converting a PHP array to JSON, and then converting that JSON to Javascript object. Why don't we let Javascript itself convert the JSON to a JS object? Like this:
// JSONify $records. We need the slashes for the
// string to work correctly in Javascript.
$jsonRecords = addslashes(json_encode($records));
// This is the JS file contents (using PHP's heredoc string syntax).
// The $jsonRecords string is inserted as part of that JSON string.
$fileContents = <<<DOC
var data = JSON.parse("[{\"tags\": $jsonRecords }]");
// Call Slider function
$(window).load(function () {
$('#slideshow-slider').jSonSlider({
'loadallslides': false,
'auto': [true, '14000'],
'nextprev': false,
'circular': true,
'pagi': false,
'data': data
});
});
DOC;
// Create a file and write to it once.
file_put_contents('records.js', $fileContents);
We convert $records to JSON and insert it inside a JSON string (var data), which is parsed by Javascript's JSON.parse function. Now we don't have any troubles with quotes.