Laravel 5.6 Ajax Post 500 Internal Server Error - php

Question

Hello i am sending large string data via Ajax Post Request and its working fine on localhost but not working on live server i am sending some image data then this image data is converted to images on server..also its taking so much time to send this data average data size is between 4 to 7 MB..also can you suggest a better way so it can be done quickly..also things are setup properly i am including CSRF token and URL is also good but don't know why this error is occurring
Error => Status Code: 500 Internal Server Error
My controller code where i am sending request
$pid = $request->input('id');
$pt_id = $request->input('pt_id');
$pname = $request->input('name');
$isBack = $request->input('isBack');
$qty = $request->input('qty');
$paper = $request->input('paper');
$previewFront = $request->input('previewFront');
$previewBack = $request->input('previewBack');
$PrintDataFront = $request->input('PrintDataFront');
$PrintDataBack = $request->input('PrintDataBack');
$cart_item_id = uniqid();
//Store Img Data
$pf = str_replace('data:image/png;base64,', '', $previewFront);
$pf = str_replace(' ', '+', $pf);
$pf_n = $cart_item_id.'_f_.'.'png';
\File::put(public_path(). '/cart_preview/' . $pf_n, base64_decode($pf));
$pb = str_replace('data:image/png;base64,', '', $previewBack);
$pb = str_replace(' ', '+', $pb);
$pb_n = $cart_item_id.'_b_.'.'png';
\File::put(public_path(). '/cart_preview/' . $pb_n, base64_decode($pb));
$pdf = str_replace('data:image/png;base64,', '', $PrintDataFront);
$pdf = str_replace(' ', '+', $pdf);
$pdf_n = $cart_item_id.'_f_.'.'png';
\File::put(public_path(). '/orders/' . $pdf_n, base64_decode($pdf));
$pdb = str_replace('data:image/png;base64,', '', $PrintDataBack);
$pdb = str_replace(' ', '+', $pdb);
$pdb_n = $cart_item_id.'_b_.'.'png';
\File::put(public_path(). '/orders/' . $pdb_n, base64_decode($pdb));
//Get Prices and qty
$opriceitem = PriceTableItem::find($qty);
$itemQty = $opriceitem->qty;
$basePrice = $opriceitem->total;
if($isBack == 'true') {
$backPrice = $opriceitem->total_back;
$itemPrice = $opriceitem->total + $opriceitem->total_back;
$pricePerPiece = $opriceitem->item_price + $opriceitem->item_price_back;
}else {
$backPrice = 'INCLUDED';
$itemPrice = $opriceitem->total;
$pricePerPiece = $opriceitem->item_price;
}
if($paper == 'Premium White') {
$paperPrice = ($itemPrice/100) *60;
$itemPrice = $itemPrice + ($itemPrice/100) *60;
} else {
$paperPrice = 'INCLUDED';
}
//Get all Available Qty
$allQty = PriceTableItem::where('tid', $pt_id)->get();
$allAvailableQty = array();
foreach($allQty as $allqtyarry) {array_push($allAvailableQty, $allqtyarry->qty);}
//Create Cart Object
$item = [
"id" => $cart_item_id,
"pid" => $pid,
"name" => $pname,
"qty" => $itemQty,
"price_table_id" => $pt_id,
"paperType" => $paper,
"backCharges" => $backPrice,
"paperCharges" => $paperPrice,
"isBack" => $isBack,
"pricePerPiece" => $pricePerPiece,
"basePrice" => $basePrice,
"totalPrice" => $itemPrice,
"allQty" => $allAvailableQty,
];
$request->session()->put('cart.items.' . $cart_item_id, $item);
return 'Success';

Answer 1

Blockquote
Are you getting only error 500 and nothing else? If so, enable debug so you can get better description of the error. Make sure your php.ini file is set up properly and also permissions are fine for your server folders (I always get problems with the storage folder).