Join 2 CSV and replace row values in PHP - php

Question

I have 2 csv:
the first one look like this:
city , text
Seattle , [city] is a [property] in the middle of [county] and have [citizens] citizens
the second one look like this:
city , property , county , citizens
Seattle , City , King County , 608.660
I will that the output look like so:
City , Text
Seattle , Seattle is a City in the middle of King County and have 608.660 citizens.
The Logic is so, combine two csv, read them, if the City name is the same, replace all the strings [value name] present in the first csv under the column "Text" with the value with the same value name present in the csv2.
After replacing the values, the output will be print in a new csv (csv3).
Thanks in advance,
Ivan

Answer 1

This should get you started:
//Create an array of city->template
$handle = fopen("templates.csv", "r");
if($handle === false){
die("Failed to open templates");
}
$templatesArr = array();
while (($data = fgetcsv($handle)) !== FALSE) {
$templatesArr[$data[0]] = $data[1];//Probably don't want to hard code these here
}
fclose($handle);
//Loop through the data populating the templates.
$handle = fopen("data.csv", "r");
if($handle === false){
die("Failed to open template data");
}
$outArr = array();
while (($data = fgetcsv($handle)) !== FALSE) {
$city = $data[0];
$template = $templatesArr[$city];
//Replace template data with csv data.
$template = str_replace(array('city','property','county','citizens'),array($city,$data[1],$data[2],$data[3]),$template);
$outArr[$city] = $template;
}
fclose($handle);
Please note this isn't tested and doesn't do any sanity checking, you'll probably want to tidy it up a bit first.