Merge or combine N (6) lines of text in one array repeatedly with php

问题

Need to prepare data from .txt file for importing in database via browser. In the example below, there is .txt file (about 40 000 lines). I need to combine every 6 records in one array (first is always timestamp in the example). So, as I understand, some loop is necessary. Tried to find some examples (too easy) but didn't succeed. I appreciate any help you can provide even some link.

.txt example

1=19-10-18 10:02:06
2=+1.313026E+00 l/s 
3=+1.671796E-01m/s
4=+1.500691E+02m3 
5=+1.501138E+02m3 
6=+0.000000E+00m3 
1=19-10-18 10:03:06
2=+1.266786E+00 l/s 
3=+1.612923E-01m/s
4=+1.501403E+02m3 
5=+1.501850E+02m3 
6=+0.000000E+00m3 
1=19-10-18 10:04:06
2=+1.597391E+00 l/s 
3=+2.033861E-01m/s
4=+1.502291E+02m3 
5=+1.502738E+02m3 
6=+0.000000E+00m3

need to look like:

array(6) {
  [0]=>
  string(15) "9-10-18 10:02:0"
  [1]=>
  string(17) "+1.313026E+00 l/s"
  [2]=>
  string(16) "+1.671796E-01m/s"
  [3]=>
  string(14) "+1.500691E+02m"
  [4]=>
  string(14) "+1.501138E+02m"
  [5]=>
  string(14) "+0.000000E+00m"
}
array(6) {
      [0]=>
      string(15) "9-10-18 10:03:0"
      [1]=>
      string(17) "+1.413026E+00 l/s"
      [2]=>
      string(16) "+1.771796E-01m/s"
      [3]=>
      string(14) "+1.300691E+02m"
      [4]=>
      string(14) "+0.501138E+02m"
      [5]=>
      string(14) "+1.000000E+00m"
    }
.
.
.

What i did till now:

$file=fopen("test_file/test.txt","r");

if ($fh = fopen('test.txt', 'r')) {
    while (!feof($fh)) {
        $line = fgets($fh);
        $line=trim($line);
        $line=trim($line,"1=");
        $line=trim($line,"2=");
        $line=trim($line,"3=");
        $line=trim($line,"4=");
        $line=trim($line,"5=");
        $line=trim($line,"6=");
        echo"<pre>";
        echo $line;
    }
    fclose($fh);
}

So now result is:

9-10-18,10:02:0
+1.313026E+00 l/s
+1.671796E-01m/s
+1.500691E+02m
+1.501138E+02m
+0.000000E+00m
9-10-18,10:03:0
+1.266786E+00 l/s
+1.612923E-01m/s
+1.501403E+02m
+1.501850E+02m
+0.000000E+00m

Now I need to put in array every 6 records.

回答1:

You can use array_chunk($array, 6);

回答2:

Additionally to chunking, to store it into one array, you can try something like this:

$chunks = array_chunk($array, 6);

$result = array_map(function($chunk) { return array_merge(...$chunk); } , $chunks);

来源：https://stackoverflow.com/questions/58727560/merge-or-combine-n-6-lines-of-text-in-one-array-repeatedly-with-php

标签

php

arrays

array-merge

array-combine