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Luis Jair Juarez Sanchez
Asked: 2022-09-10 13:07:24 +0800 CST 2022-09-10 13:07:24 +0800 CST

How to read the content of a txt line by line with PHP?

  • 772

Hello, I need to read a txt with PHP line by line obtaining from each line text in specific positions, for example:

Linea 1: Luis Juarez

Linea 2: Paco Mendoza

Linea 3: Pepe Gonzales

I only want to extract the name that is in the first 4 positions Luis would be from position 0 to 3, the same would be with the other two, how do I make it go through the entire file and only show the positions that it requires.

This is the code that I have done, but it only gives me results with line 1, it does not go through the entire content of the file, I would greatly appreciate your collaboration, thanks

<?php 
//Llamar al arcivo
$nombre=$_FILES['archivo']['name'];
$guardado=$_FILES['archivo']['tmp_name'];

if (!file_exists('archivos')) {
    mkdir('archivos',0777,true);
    if (file_exists('archivos')) {
        if(move_uploaded_file($guardado, 'archivos/'.$nombre)){
            echo "";
        }else{
            echo "Ocurrio un error con la carga del archivo";
        }
    }
}else{
    if(move_uploaded_file($guardado, 'archivos/'.$nombre)){
    }else{
        echo "Ocurrio un error con la carga del archivo";
    }
}

// Abrir el archivo en modo de sólo lectura:
$arc = fopen('archivos/'.$nombre,"r");

// Recorremos el archivo mostando el contenido de cada línea:
echo file_get_contents('archivos/'.$nombre,null,null,2,18);

fclose($arc);
?>
php

1 Answers

  1. Best Answer

    To read it line by line you could try this:

    $arc = fopen('archivos/'.$nombre,"r");
while(! feof($arc))  {
    $linea = fgets($arc);
    echo "Nombre: ".substr($linea, 0, 4);
}
fclose($arc);

    where, through a while() loop and the feof() function, we advance to the end of the file.

    And on each loop we read each line via the fgets() function , advancing the file pointer.

    And we subtract a length of 4 characters from it, starting at the beginning thanks to the substr() function

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