php text file to array of arrays

Question

i got a text file that contains

a b c 

a c

b

i want to read the text file and convert it to array of arrays like this

  array(
        array('a', 'b', 'c'),
        array('a', 'c'),
        array('b'));

i want to split each line in an array and each word in a index in the array

i tried this code but it only split each line in a array i want each word in a array of the line

$file="140724.txt";
$fopen = fopen($file, r);
$fread = fread($fopen,filesize($file));
fclose($fopen);
$remove = "\n";
$split = explode($remove, $fread);
$array[] = null;
$tab = "\t";
foreach ($split as $string)
{
    $row = explode($tab, $string);
    array_push($array,$row);
}
echo "<pre>";
print_r($array);
echo "</pre>";

i got this result

Array

(

    [0] => 

    [1] => Array
        (
            [0] => a b c
        )

    [2] => Array
        (
            [0] => a b
        )

    [3] => Array
        (
            [0] => c
        ))

Nigel Ren · Accepted Answer · 2020-01-06 11:09:17Z

3

You can reduce the code quite a bit by using some of the inbuilt functions.

Using file() with the appropriate flags will read the file in, ignoring any empty lines and return an array of data.

Then use array_map() along with explode() to process this array and split it into the individual parts per row...

$fileName = "140724.txt";
$file = file($fileName, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES );
$output = array_map(function($line) { return explode("\t", $line); }, $file);

will produce

Array
(
    [0] => Array
        (
            [0] => a
            [1] => b
            [2] => c
        )

    [1] => Array
        (
            [0] => a
            [1] => c
        )

    [2] => Array
        (
            [0] => b
        )

)

answered Jan 6, 2020 at 11:09

Nigel Ren

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Comments

HP371 · Accepted Answer · 2020-01-06 11:06:24Z

0

Try with like this.

$file="140724.txt";
$fopen = fopen($file, r);
$fread = fread($fopen,filesize($file));
fclose($fopen);
$remove = "\n";
$split = explode($remove, $fread);
$array = array();
$tab = " ";
foreach ($split as $string)
{
    $array[] = explode($tab, $string);
}
echo "<pre>";
print_r($array);
echo "</pre>";

Hope this help to you.

answered Jan 6, 2020 at 11:06

HP371

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1 Comment

dWinder Over a year ago

This code may work but it doesn't explain the issues in the OP code...

dWinder · Accepted Answer · 2020-01-06 11:12:54Z

0

There are couple of errors.

First - init the $array var as $array = []; and not $array[] = null;.

Second, you can use fgetcsv which will be better.

Last, I think the delimiter is (white space) and not \t.

Consider:

$handle = fopen($file, "r");
while (($data = fgetcsv($handle, 1000, " ")) !== FALSE) {
    $arr[] = $data;
}

answered Jan 6, 2020 at 11:12

dWinder

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Comments

Aleksandr · Accepted Answer · 2020-01-06 11:30:13Z

0

$fileData = file('1.txt', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);

$result = [];
foreach ($fileData as $row) {
    $splitRow = str_getcsv($row, ' ');
    $result[] = $splitRow;
}

echo '<pre>';
print_r($result);

$fileData = file('1.txt', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);

$result = array_map(function ($row) {
    return str_getcsv($row, ' ');
}, $fileData);

echo '<pre>';
print_r($result);

answered Jan 6, 2020 at 11:30

Aleksandr

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1 Comment

Nico Haase Over a year ago

Please add some explanation to your code such that others can learn from it

Ritesh Dhoke · Accepted Answer · 2020-01-06 11:31:41Z

0

This will give perfect output without blank array.Thank me later.

$file="140724.txt";
$fopen = fopen($file, 'r');
$fread = fread($fopen,filesize($file));
fclose($fopen);
$remove = "\n";
$split = explode($remove, $fread);

$custom_array = array();
$x = 0;
foreach ($split as $value) {
    $value = trim($value);
    if($value != '' || $value != null){
        $inside_explode = explode(" ", $value);
        $custom_array[$x] = $inside_explode;
        $x++;
    }


}
print_r($custom_array);

edited Jan 6, 2020 at 11:31

answered Jan 6, 2020 at 11:18

Ritesh Dhoke

16910 bronze badges

1 Comment

dWinder Over a year ago

This code may work but it doesn't explain the issues in the OP code...

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