Merge Two csv files with php - php

Question

i have two csv files: one contracts data and the other containing awarded contracts. I need to combine these two files using common field(contractname) and compute total amount of current awarded contracts.
Link to csv files:
https://github.com/younginnovations/problem-statements/tree/master/clean-up-contracts-data
I do get desired output bt undefined offset error comes up.
the code:unset(awards_info[$y][0]); does unsets the data but 'Undefined offset: 0' error occurs..
similarly the code $list_data[10]!=NULL also shows the same error
but both are producing desired output.
var_dump($awards_info):: produces following:
array(5) { [0]=> array(6) { [0]=> string(12) "contractName" [1]=> string(12) "contractDate" [2]=> string(14) "completionDate" [3]=> string(7) "awardee" [4]=> string(15) "awardeeLocation" [5]=> string(6) "Amount" } [1]=> array(6) { [0]=> string(15) "Contract-2070-3" [1]=> string(8) "5/9/2014" [2]=> string(9) "8/25/2014" [3]=> string(11) "SK Builders" [4]=> string(5) "Banke" [5]=> string(6) "200000" } [2]=> array(6) { [0]=> string(15) "Contract-2070-5" [1]=> string(9) "3/18/2014" [2]=> string(8) "4/8/2014" [3]=> string(24) "S engineering industries" [4]=> string(9) "Makwanpur" [5]=> string(6) "300000" } [3]=> array(6) { [0]=> string(15) "Contract-2070-9" [1]=> string(8) "3/6/2014" [2]=> string(8) "4/6/2014" [3]=> string(24) "Gourishankar nirman sewa" [4]=> string(8) "Lalitpur" [5]=> string(6) "400000" } [4]=> array(6) { [0]=> string(16) "Contract-2070-10" [1]=> string(8) "2/6/2014" [2]=> string(9) "6/16/2014" [3]=> string(11) "SK Builders" [4]=> string(5) "Banke" [5]=> string(6) "400000" } }
$file_contract=fopen('contracts.csv','r');
$file_awards=fopen('awards.csv','r');
while(($data=fgetcsv($file_contract))!=FALSE){
$contracts_info[]=$data;
}
while(($data=fgetcsv($file_awards))!=FALSE){
$awards_info[]=$data;
}
$con_count=count($contracts_info);
for($x=0;$x<$con_count;$x++){
if($x==0){
unset($awards_info[0][0]);
$data[$x]=array_merge($contracts_info[0],$awards_info[0]);
}
else{
$check=0;
$award_count=count($awards_info);
for($y=1;$y<$award_count;$y++){
if($awards_info[$y][0]==$contracts_info[$x][0]){
unset($awards_info[$y][0]);
$data[$x]=array_merge($contracts_info[$x],$awards_info[$y]);
$check=1;
}
}
if($check==0){
$data[$x]=$contracts_info[$x];
}
}
}
$final_data=fopen('final.csv','w');
foreach($data as $list_data){
fputcsv($final_data,$list_data);
}
fclose($final_data);
$c=0;
foreach ($data as $list_data){
if(($list_data[1]=='Current') && ($list_data[10]!=NULL))
{
$c+=$list_data[12];
}
}
echo $c;

Answer 1

You can just add the content file in the new file, without parsing files :
$fp = fopen('final.csv','w');
fwrite($fp, file_get_contents('contracts.csv'));
fwrite($fp, file_get_contents('awards.csv'));
fclose($fp);
echo file_get_contents('final.csv');
ok it's a wrong way. So i try to rewrite the loop :
for($x=0; $x < count($contracts_info); $x++) {
$data[$x] = $contracts_info[$x];
if($x == 0) {
if(isset($awards_info[$x])) {
$data[$x] = array_merge($data[$x], $awards_info[$x]);
unset($awards_info[$x]);
}
} else {
foreach($awards_info as $y => $award_info_datas) {
if($award_info_datas[0] == $contracts_info[$x][0]) {
$data[$x] = array_merge($data[$x], $award_info_datas);
unset($awards_info[$y]);
break;
}
}
}
}