Removing double qoute in json_encode / PHP - php

Question

I need some help with JSON and PHP. Here's my code in PHP:
include 'class.Connection.php';
$branch = $_GET["b"];
$records = array();
$sqlNailDisplay = "SELECT NAD_ID FROM tbl_NailArtDesign WHERE NAD_Available = 1";
$query0 = mysql_query($sqlNailDisplay) or die(mysql_error());
while($rSet0 = mysql_fetch_array($query0, MYSQL_BOTH)) {
$actualPrice = 0.00;
$nailart = $rSet0["NAD_ID"];
//please note, { is the ascii code for '{', } is the ascii code for '}', while " is the ascii code for '"'
$mergedData = "{"NAD_ID":"".$nailart."","";
//individual nail art details
$sqlNailArt = "SELECT * FROM tbl_NailArtDesign WHERE NAD_ID = '".$nailart."' AND NAD_Available = 1";
$query1 = mysql_query($sqlNailArt) or die(mysql_error());
while($rSet1 = mysql_fetch_array($query1, MYSQL_BOTH)) {
$NAD_Ext = $rSet1["NAD_Ext"];
$CC_ID = $rSet1["CC_ID"];
$CT_ID = $rSet1["CT_ID"];
$CST_ID = $rSet1["CST_ID"];
if(empty($CST_ID)) {
$CST_ID = "null";
}
$NAD_Descrip = $rSet1["NAD_Descrip"];
$mergedData = $mergedData."NAD_Ext":"".$NAD_Ext."","CC_ID":"".$CC_ID."","CT_ID":"".$CT_ID."","CST_ID":"".$CST_ID."","NAD_Descrip":"".$NAD_Descrip."","";
}
//product used and price details
$sqlProductsUsed = "SELECT PL_ID FROM tbl_ProductUsed WHERE NAD_ID = '".$nailart."'";
$query2 = mysql_query($sqlProductsUsed) or die(mysql_error());
while($rSet2 = mysql_fetch_array($query2, MYSQL_BOTH)) {
$PL_ID = $rSet2["PL_ID"];
$sqlProductPrice = "SELECT PP_Amount FROM tbl_ProductPrice WHERE PL_ID = ".$PL_ID." AND BL_ID = '".$branch."'";
$query3 = mysql_query($sqlProductPrice) or die(mysql_error());
while($rSet3 = mysql_fetch_array($query3, MYSQL_BOTH)) {
$price = number_format($rSet3["PP_Amount"],2);
$actualPrice = number_format($actualPrice + $price,2);
}
$mergedData = $mergedData."PL_ID":"".$PL_ID."","PP_Amount":"".$price."","";
}
$mergedData = $mergedData."NAD_Price":"".$actualPrice.""}";
$records[] = $mergedData;
} mysql_free_result($query0);
echo json_encode($records);
And this is the result I'm getting:
["{"NAD_ID":"ND0001","NAD_Ext":"jpg","CC_ID":"1","CT_ID":"1","CST_ID":"null","NAD_Descrip":"Giving you the aquatic feeling with Turquoise Marble","PL_ID":"1","PP_Amount":"9.00","PL_ID":"2","PP_Amount":"9.10","PL_ID":"3","PP_Amount":"9.00","NAD_Price":"27.10"}","{"NAD_ID":"ND0002","NAD_Ext":"jpg","CC_ID":"1","CT_ID":"1","CST_ID":"null","NAD_Descrip":"Add a twirl in your life with Lavender Twirl","PL_ID":"1","PP_Amount":"9.00","PL_ID":"2","PP_Amount":"9.10","PL_ID":"3","PP_Amount":"9.00","NAD_Price":"27.10"}"]
I need my result to look like this:
[{"NAD_ID":"ND0001","NAD_Ext":"jpg","CC_ID":"1","CT_ID":"1","CST_ID":"null","NAD_Descrip":"Giving you the aquatic feeling with Turquoise Marble","PL_ID":"1","PP_Amount":"9.00","PL_ID":"2","PP_Amount":"9.10","PL_ID":"3","PP_Amount":"9.00","NAD_Price":"27.10"},{"NAD_ID":"ND0002","NAD_Ext":"jpg","CC_ID":"1","CT_ID":"1","CST_ID":"null","NAD_Descrip":"Add a twirl in your life with Lavender Twirl","PL_ID":"1","PP_Amount":"9.00","PL_ID":"2","PP_Amount":"9.10","PL_ID":"3","PP_Amount":"9.00","NAD_Price":"27.10"}]
There an extra double quotes that I need to remove from my output.
["{" , ",*"* , }"]
Please help, I'm already at my limit and I already did searching for this, and I can't seem to get any resolution for this...

Answer 1

Hardcoded method:
$result = "[".substr(json_encode($records), 2, -2)."]";
$result = str_replace('","', ',', $result);