Export row from CSV file to JSON - php

Question

I want to export a row in CSV file to JSON file with require : 1 line in CSV export 1 file JSON. I success to export file,but can't filter the row that i want to export. Can anyone help me?
<?php
header('Content-type: application/json');
$feed = 'jsondata_palpad.csv';
$keys = array();
$newArray = array();
function csvToArray($file, $delimiter) {
if (($handle = fopen($file, 'r')) !== FALSE) {
$i = 0;
while (($lineArray = fgetcsv($handle, 4000, $delimiter, '"')) !== FALSE) {
for ($j = 0; $j < count($lineArray); $j++) {
$arr[$i][$j] = $lineArray[$j];
}
$i++;
}
fclose($handle);
}
return $arr;
}
$data = csvToArray($feed, ',');
$count = count($data) - 1;
$labels = array_shift($data);
foreach ($labels as $label) {
$keys[] = $label;
}
$keys[] = 'id';
for ($i = 0; $i < $count; $i++) {
$data[$i][] = $i;
}
for ($j = 0; $j < $count; $j++) {
$d = array_combine($keys, $data[$j]);
$newArray[$j] = $d;
}
//Xuat file JSON
for ($i = 0; $i < 5; $i++) {
$json = json_encode($newArray[$i]);
echo $json . "<br />\n";
$filename = $data[$i][1] . ".json";
echo $filename . "<br />\n";
//echo "title[" . $data[$i][4] . "]";
$handle = fopen("./" . $filename, "w");
fwrite($handle, $json);
fclose($handle);
}
?>
If recommend = 2,it will export line whre id=2.
I want to export id,product_id,title,outline to JSON file.This is sample JSON file:
http://img839.imageshack.us/img839/5277/21527799.png
This is CSV file :
http://img690.imageshack.us/img690/1526/43004273.png

Answer 1

You are looping through all 6 lines of the csv file and saving them to the JSON file:
for ($i = 0; $i < 5; $i++) {
...
}
If you know what row number it is you want, don't loop through every row - just call the code inside the loop for that row. For example, if you wanted the 2nd row:
$row_we_want = 1;
$json = json_encode($newArray[$row_we_want]);
$filename = $data[$row_we_want][1] . ".json";
$handle = fopen("./" . $filename, "w");
fwrite($handle, $json);
fclose($handle);
If you are unsure about which row it is and need to check each one, you could do so in the loop:
for ($i = 0; $i < 5; $i++) {
if (some_condition) {
$json = json_encode($newArray[$i]);
$filename = $i][1] . ".json";
$handle = fopen("./" . $filename, "w");
fwrite($handle, $json);
fclose($handle);
}
}
Also it might be worth replacing 5 in your loop with the length of the array using the count function if it is not always a fixed length.