Manipulate several files in PHP - php

Question

I'm trying to import data from multiple .csv in a web app thanks to a single input, but I'm struggling manipulating $_FILES.
All I want to do is separating files into two arrays according to their names. I'm not able to upload these files on the server.
This is the input in the form page used to upload files :
<input type="file" name="file[]" id="inputrapports" accept=".csv" multiple="true"/>
In my action page, i'm doing this :
$files=$_FILES['file'];
$q=array();
$c=array();
foreach($files as $file){
if(strtoupper(substr(str_replace(' ','',$file['name']),7,1))=="Q"){
$q[]=$file;
}else{
$c[]=$file;
}
}
Unfortunately, it doesn't work. So I tried this :
foreach($files['name'] as $f){
echo $f; //I'm getting the name
}
foreach($files as $f){
echo $f['name']; //I'm not
}
I could use the first attempt shown above, but in this case I won't be able to put the entire array of the file in the appropriate array.
Can you explain me why this two attempts give different answers ?
Could you help me find a solution ?
Thanks in advance.

Answer 1

The dirty way to solve this is:
$files = $_FILES['file'];
for($i=0;$i<count($files['tmp_name']); $i++)
{
echo $files['name'][$i];
}
Another approach is from the php documentation:
function diverse_array($vector) {
$result = array();
foreach($vector as $key1 => $value1)
foreach($value1 as $key2 => $value2)
$result[$key2][$key1] = $value2;
return $result;
}
$files = diverse_array($_FILES["file"]);
And then proceed with your first foreach.
$q=array();
$c=array();
foreach($files as $file){
if(strtoupper(substr(str_replace(' ','',$file['name']),7,1))=="Q"){
$q[]=$file;
}else{
$c[]=$file;
}
}