Input Data into another file

<?php
$handle = fopen("input.csv", "r");
$handle2 = fopen("output.csv", "r");
//We'll write the output to a third file;
$outhandle = fopen("newoutput.csv", "w");

//Write first 4 lines of output into new output file
$row = 1;
while (($data = fgetcsv($handle2, 1000, ",")) !== FALSE && $row < 5) {
    $csvRow = implode(',', $data);
    fwrite($outhandle, $csvRow);
    $row++;
}

while (($data = fgetcsv($handle2, 1000, ",")) !== FALSE && while (($inputdata = fgetcsv($handle, 1000, ",")) !== FALSE) {
	$outdata = array();
	//push the first 12 records of output.csv into new output
	for ($i=0; $i <=11; $i++) {
		$outdata[$i] = $data[$i];
	}
	//push data from input.csv from 13th column onwards.
	foreach($inputdata as $val) {
		array_push($outdata, $val);
	}

	//Now create the string to be written to output file
	$csvRow = implode(',', $outdata);
	fwrite($outhandle, $csvRow);
}
fclose($outhandle, $handle, $handle2);
?>

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