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PHP – parsing a txt file

Posted by: admin April 23, 2020 Leave a comment

Questions:

I have a .txt file that has the following details:

ID^NAME^DESCRIPTION^IMAGES
123^test^Some text goes here^image_1.jpg,image_2.jpg
133^hello^some other test^image_3456.jpg,image_89.jpg

What I’d like to do, is parse this ad get the values into a more readable format, possibly into an array if possible.

Thanks

How to&Answers:

You can do that easily this way

$txt_file    = file_get_contents('path/to/file.txt');
$rows        = explode("\n", $txt_file);
array_shift($rows);

foreach($rows as $row => $data)
{
    //get row data
    $row_data = explode('^', $data);

    $info[$row]['id']           = $row_data[0];
    $info[$row]['name']         = $row_data[1];
    $info[$row]['description']  = $row_data[2];
    $info[$row]['images']       = $row_data[3];

    //display data
    echo 'Row ' . $row . ' ID: ' . $info[$row]['id'] . '<br />';
    echo 'Row ' . $row . ' NAME: ' . $info[$row]['name'] . '<br />';
    echo 'Row ' . $row . ' DESCRIPTION: ' . $info[$row]['description'] . '<br />';
    echo 'Row ' . $row . ' IMAGES:<br />';

    //display images
    $row_images = explode(',', $info[$row]['images']);

    foreach($row_images as $row_image)
    {
        echo ' - ' . $row_image . '<br />';
    }

    echo '<br />';
}

First you open the text file using the function file_get_contents() and then you cut the string on the newline characters using the function explode(). This way you will obtain an array with all rows seperated. Then with the function array_shift() you can remove the first row, as it is the header.

After obtaining the rows, you can loop through the array and put all information in a new array called $info. You will then be able to obtain information per row, starting at row zero. So for example $info[0]['description'] would be Some text goes here.

If you want to put the images in an array too, you could use explode() too. Just use this for the first row: $first_row_images = explode(',', $info[0]['images']);

Answer:

Use explode() or fgetcsv():

$values = explode('^', $string);

Or, if you want something nicer:

$data = array();
$firstLine = true;
foreach(explode("\n", $string) as $line) {
    if($firstLine) { $firstLine = false; continue; } // skip first line
    $row = explode('^', $line);
    $data[] = array(
        'id' => (int)$row[0],
        'name' => $row[1],
        'description' => $row[2],
        'images' => explode(',', $row[3])
    );
}

Answer:

By far the best and simplest example of this I have come accross is quite simply the file() method.

$array = file("myfile");
foreach($array as $line)
       {
           echo $line;
       }

This will display all the lines in the file, this is also applicable for a remote URL.

Simple and clear.

REF : IBM PHP Parse

Answer:

I would like to contribute a file that provides atomic data structures.

$lines = file('some.txt');
$keys = explode('^', array_shift($lines));
$results = array_map(
    function($x) use ($keys){
        return array_combine($keys, explode('^', trim($x)));
    }, 
    $lines
);

Answer:

Try fgetcsv() with ^ as the separator character:

$file = fopen($txt_file,"r");
print_r(fgetcsv($file, '^'));
fclose($file);

http://www.w3schools.com/php/func_filesystem_fgetcsv.asp

Answer:

<?php
$row = 1;
if (($handle = fopen("test.txt", "r")) !== FALSE) {
    while (($data = fgetcsv($handle, 1000, "^")) !== FALSE) {
        $num = count($data);
        echo "<p> $num fields in line $row: <br /></p>\n";
        $row++;
        for ($c=0; $c < $num; $c++) {
            echo $data[$c] . "<br />\n";
        }
    }
    fclose($handle);
}
?>

Answer:

Ok, didn’t see the edited version, so here’s a redo. It’s most likely a CSV file that uses carets as the separator, so…

$fh = fopen('yourfile.txt');
$headers = fgetcsv($fh, 0, '^');
$details = array();
while($line = fgetcsv($fh, 0, '^')) {
   $details[] = $line;
}
fclose($fh);

Answer:

youse a list, and split the “image_1.jpg,image_2.jpg” after you explode the string:

list($number, $status, $text, $images) = explode("^", $data);

$splited_images= preg_split(',', $images);

Answer:

My solution

function parseTextFile($file){
    if( !$file = file_get_contents($file))
        throw new Exception('No file was found!!');
    $data = [];
    $firstLine = true;
    foreach(explode("\n", $file) as $line) {
        if($firstLine) { 
            $keys=explode('^', $line);
            $firstLine = false; 
            continue; 
        } // skip first line
        $texts = explode('^', $line);
        $data[] = array_combine($keys,$texts);
    }
    return $data;
}