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Nested JSON implemented #2

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ada6fa4
almost finished
arelangi Sep 22, 2013
ba7634d
added index. error notification changed
arelangi Sep 22, 2013
9189d7a
changes for memory
arelangi Jan 7, 2014
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60 changes: 60 additions & 0 deletions arrayToCSV.php
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Original file line number Diff line number Diff line change
@@ -0,0 +1,60 @@
<?php


function arrayToCSV($fields = array(), $delimiter = ',', $enclosure = '"'){
$str = '';
$escape_char = '\\';
$children = array();
foreach ($fields as $value) {

if(gettype($value) == 'array'){
$children[] = $value;
continue;
}

if (strpos($value, $delimiter) !== false ||
strpos($value, $enclosure) !== false ||
strpos($value, "\n") !== false ||
strpos($value, "\r") !== false ||
strpos($value, "\t") !== false ||
strpos($value, ' ') !== false) {
$str2 = $enclosure;
$escaped = 0;
$len = strlen($value);
for ($i=0;$i<$len;$i++) {



if ($value[$i] == $escape_char) {
$escaped = 1;
} else if (!$escaped && $value[$i] == $enclosure) {
$str2 .= $enclosure;
} else {
$escaped = 0;
}
$str2 .= $value[$i];
}
$str2 .= $enclosure;
$str .= $str2.$delimiter;
} else {
if(count($value)==0){

$str .="novalue".$delimiter;
}else{
$str .= $value.$delimiter;
}
}
}

foreach ($children as $value) {

$str .=arrayToCSV($value);
}


// $str = substr($str,0,-1);

return $str;
}

?>
2 changes: 2 additions & 0 deletions index.html
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
<html><head><title>JSON 2 CSV </title></head>
<body> <a href="json2csv.php"> Click here to convert your json to csv</a> </body> </html>
94 changes: 74 additions & 20 deletions json2csv.class.php
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Original file line number Diff line number Diff line change
@@ -1,5 +1,10 @@
<?php

require_once('arrayToCSV.php');

ini_set('memory_limit', '-1');


class JSON2CSVutil{

public $dataArray;
Expand All @@ -11,48 +16,97 @@ function readJSON($JSONdata){
return $this->dataArray;
}

function JSONfromFile($file){
$this->dataArray = json_decode(file_get_contents($file),1);
$this->prependColumnNames();
return $this->dataArray;
function isNested($array){
foreach($array as $data){
if(is_array($data)){
return TRUE;
}
}
return FALSE;
}


function getAllKeys($array){
$result = array();
$children = array();
foreach($array as $sub=>$value) {
if(gettype($value)=='array'){
$children[] = $value;
//$result = array_merge($result,$this->getAllKeys($value));
}else{
$result [] = $sub;
}
}

foreach ($children as $key => $value) {
$result = array_merge($result,$this->getAllKeys($value));
}
return $result;
}

private function prependColumnNames(){
foreach(array_keys($this->dataArray[0]) as $key){
$keys[0][$key] = $key;
function prependColumnNames(){
$keys = array();
foreach ($this->dataArray as $key => $value) {

if($this->isNested($value)){
$keys[] = $this->getAllKeys($this->dataArray[$key]);
break;
}
}

if(count($keys)==0){
$keys[] = $this->getAllKeys($this->dataArray[0]);
}

$this->dataArray = array_merge($keys, $this->dataArray);
}

function save2CSV($file){
function browserDL($CSVname){

if($this->isItNested() || !is_array($this->dataArray)){
echo "JSON is either invalid or has nested elements.";
echo "<h1>JSON is either invalid or you encountered an edge case I missed. Please let me know at [email protected]<h1>";
}
else{
$fileIO = fopen($file, 'w+');
header("Content-Type: text/csv; charset=utf-8");
header("Content-Disposition: attachment; filename=$CSVname");

$output = fopen('php://output', 'w');

foreach ($this->dataArray as $fields) {
fputcsv($fileIO, $fields);
fwrite($output,arrayToCSV($fields)."\n");
}
fclose($fileIO);
}
}
function browserDL($CSVname){


function JSONfromFile($file){


$this->dataArray = json_decode(file_get_contents($file),TRUE);
$this->prependColumnNames();
return $this->dataArray;
}


function save2CSV($file){

if($this->isItNested() || !is_array($this->dataArray)){
echo "<h1>JSON is either invalid or has nested elements.</h1>";
echo "<h1>JSON is either invalid or you encountered an edge case I missed. Please let me know at [email protected]<h1>";
}
else{
header("Content-Type: text/csv; charset=utf-8");
header("Content-Disposition: attachment; filename=$CSVname");

$output = fopen('php://output', 'w');
echo 'orey '.$file;
ob_flush();

$fileIO = fopen($file, 'w+');
foreach ($this->dataArray as $fields) {
fputcsv($output, $fields);
fputcsv($fileIO, $fields);
}
fclose($fileIO);
}
}

private function isItNested(){
function isItNested(){
foreach($this->dataArray as $data){
if(is_array($data)){
$isNested = TRUE;
Expand Down
13 changes: 9 additions & 4 deletions json2csv.php
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Original file line number Diff line number Diff line change
@@ -1,5 +1,7 @@
<?php

ini_set('memory_limit', '-1');

if((isset($_FILES["file"]["type"]) && $_FILES["file"]["type"] != NULL)
|| (isset($_POST['json']) && $_POST['json'] != NULL)
|| (isset($argv[1]))){
Expand All @@ -19,15 +21,18 @@
$filepath = "JSON2.CSV";
}


$JSON2CSV->savejsonFile2csv($arguments["file"], $filepath);
}
elseif($_FILES["file"]["type"] != NULL){
elseif(($_FILES["file"]["type"]) != NULL){

$JSON2CSV->JSONfromFile($_FILES["file"]["tmp_name"]);
$JSON2CSV->browserDL("JSON2.CSV");
$JSON2CSV->browserDL(str_replace("json", "csv", $_FILES["file"]["name"]));
}
elseif($_POST['json'] != NULL){

$JSON2CSV->readJSON($_POST['json']);
$JSON2CSV->browserDL("JSON2.CSV");
$JSON2CSV->browserDL("JSON.CSV");
}
}
else{
Expand All @@ -38,7 +43,7 @@

<form action="<?php echo $_SERVER['SCRIPT_NAME']; ?>" method="post" enctype="multipart/form-data">
<label for="json">JSON data:</label>
<textarea name="json" cols="150" rows="40">
<textarea name="json" cols="70" rows="20">

</textarea>
<br />
Expand Down
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