PHP Parsing file into Array of Array - php

Question

I have a file with many rows,each row have the following format:
1519382994.85#MSG#Something went wrong
So, for each row i have three field divided by #. A number, a message type and a string.
Now i want to read the file and split the contents.
I made it in this way:
//Opening the logger file
$myfile = file_get_contents("operations.txt", "r") or die("Unable to open file!");
$rows = explode("\n", $myfile);
$num_rows = count($rows);
$fieldList = array();
//Parsing rows using '#'
foreach ($rows as $row => $data) {
$row_data = explode('#', $data);
array_push($fieldList, (string)$row_data[0]);
array_push($fieldList, (string)$row_data[1]);
array_push($fieldList, (string)$row_data[2]);
}
The code is working well but i'd like to have an array of array and this kind of data:
0: Array [ "112323.76", "MSG", "Hello"]
1: Array [ "453435.78", "MSG", "Bye"] etc..
I tryed with this code but i'm doing something wrong.
$last=0;
$result = array();
for ($i = 0; $i < $num_rows; $i++) {
array_push($result, (string) $fieldList[$last], (string) $fieldList[$last+1],(string) $fieldList[$last+2]);
//echo $fieldList[$last].'<br>';
//echo $fieldList[$last+1].'<br>';
//echo $fieldList[$last+2].'<br>';
$last=$last+3;
}
I'm a newbie in PHP someone can help me please and tell me what i'm doing wrong? Tanx a Lot for your time

Answer 1

You could probably make use of the built-in fgetcsv:
array fgetcsv ( resource $handle [, int $length = 0 [, string $delimiter = "," [, string $enclosure = '"' [, string $escape = "\\" ]]]] )
This could look like:
$rows = [];
if (false !== ($handle = fopen("path/to/file", "r")))
{
while (false !== ($row = fgetcsv($handle, 1000, ",")))
{
array_push($rows, $row);
}
fclose($handle);
}
Don't know if it would be a lot faster, but looks a lot easier to me. The main benefits of this over file() and explode() are:
There is no need to have the entire file in RAM at once, processing could be done one row at a time.
it is easy to support other "Character Seperated Values" type files where fields may be quoted ($enclosure)

Answer 2

Just needed some modifications in your code. Added comments to modified lines-
$myfile = file_get_contents("operations.txt", "r") or die("Unable to open file!");
$rows = explode("\n", $myfile);
$num_rows = count($rows);
$finalFieldList = array(); // new array
//Parsing rows using '#'
foreach ($rows as $row => $data) {
$fieldList = array(); // temporary array
$row_data = explode('#', $data);
array_push($fieldList, (string)$row_data[0]);
array_push($fieldList, (string)$row_data[1]);
array_push($fieldList, (string)$row_data[2]);
array_push($finalFieldList, $fieldList); // it will push to final array containing all 3 values
}