I am looking for a way to split a csv line into the keys of a multidimensional php array
a,b,c becomes
$some_array['a']['b']['c'] = true;
a,b,d,e becomes
$some_array['a']['b']['d']['e'] = true;
1 Answer
Maybe something like this?
<?php
$csv_inputstring =
"1,2,3
a,b,c
d,e,f";
$output = array();
foreach(explode("\n",$csv_inputstring) as $line){
$values = str_getcsv($line);
$tmp = &$output;
foreach($values as $value){
if (!is_array($tmp)){
$tmp = array();
}
$tmp = &$tmp[$value];
}
$tmp = true;
}
print_r($output);
?>
The result for this test:
Array
(
[1] => Array
(
[2] => Array
(
[3] => 1
)
)
[a] => Array
(
[b] => Array
(
[c] => 1
)
)
[d] => Array
(
[e] => Array
(
[f] => 1
)
)
)
$some_array['a']['b']['c']['d'] = true;which means$some_array['a']['b']['c']is an array. But then you will set$some_array['a']['b']['c']to be boolean true - overwriting the contents of the first line. You will need to make sure all rows in your CSV have a fixed number of columns for your question to make sense.