CODEWITHSUNDEEP
phpparsing
user840718
user840718

Reputation: 1611

Php read from file with a space

I have a txt file formatted like this:

string1 value
string2 value
string3 value

I have to parse the "value" that change from an external script, but the stringX are static. How can I get the value by each line?

Upvotes: 0

Views: 1485

Answers (2)

DavChana
DavChana

Reputation: 1976

This could help you. It reads one line at a time, and even if Text.txt contains 1000 lines, if you do a file_put_contents each time, like file_put-contents("result.txt", $line[1]), file will be updated every time it reads a line (or any action you want will be executed), not after reading all the 1000 lines. And at any given time, only one line is in memory.

<?php

$fp = fopen("Text.txt", "r") or die("Couldn't open File");
while (!feof($fp)) { //Continue loading strings till the end of file
    $line = fgets($fp, 1024); // Load one complete line
    $line = explode(" ", $line);

    // $line[0] equals to "stringX"
    // $line[1] equals to "value"

    // do something with $line[0] and/or $line[1]
    // anything you do here will be executed immediately
    // and will not wait for the Text.txt to end.

} //while loop ENDS

?>

Upvotes: 1

fdomig
fdomig

Reputation: 4457

That should work for you.

$lines = file($filename);
$values = array();

foreach ($lines as $line) {
    if (preg_match('/^string(\d+) ([A-Za-z]+)$/', $line, $matches)) {
        $values[$matches[1]] = $matches[2];
    } 
}

print_r($values);

Upvotes: 2

Related Questions