Update CSV File

Demonstrates how to read a CSV, update some cells, and save.

The Chilkat CSV library/component/class is freeware. The downloads for .NET, C++, Perl, Java, Ruby, and Python contain all of the Chilkat classes, some of which are freeware and some of which require licensing.

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use chilkat();

#  This example program loads a file (sample.csv)
#  that contains this content:
# 
#  year,color,country,food
#  2001,red,France,cheese
#  2005,blue,"United States",hamburger
#  2008,green,Italy,pasta
#  1998,orange,Japan,sushi
# 
#  The first row contains the column names.
#  This file is available at:
#  http://www.chilkatsoft.com/testData/sample.csv

$csv = new chilkat::CkCsv();

#  Prior to loading the CSV file, indicate that the 1st row
#  should be treated as column names:
$csv->put_HasColumnNames(1);

#  Load the CSV records from the file:

$success = $csv->LoadFile("sample.csv");
if ($success != 1) {
    print $csv->lastErrorText() . "\n";
    exit;
}

#  Change "cheese" to "baguette"
#  ("cheese" is at row=0, column=3
$csv->SetCell(0,3,"baguette");

#  Change "blue" to "magenta"
$csv->SetCell(1,1,"magenta");

#  Write the updated CSV to a string and display:

$csvDoc = $csv->saveToString();
print $csvDoc . "\r\n";

#  Save the CSV to a file:
$success = $csv->SaveFile("out.csv");
if ($success != 1) {
    print $csv->lastErrorText() . "\n";
}