CODEWITHSUNDEEP
phpfopenfwrite
FilipET
FilipET

Reputation: 68

How to change a line from a text file (PHP)

Text file(text.txt):

#Minecraft server properties
#Tue Sep 23 18:07:26 CEST 2014
generator-settings=
op-permission-level=4
allow-nether=true
level-name=world
enable-query=true
allow-flight=false
announce-player-achievements=true
server-port=25565
query.port=25565
level-type=DEFAULT
enable-rcon=false
force-gamemode=false
level-seed=
server-ip=
max-build-height=256

How to replace the value of some line, such as these:

server-port=25565

Replace with:

server-port=25585

But no to find 'server-port=25565' and replace with 'server-port=25585' It is found that the lines in which the server port and to allocate a value that needs to be replaced.

Example:

<?php
    $myfile = fopen("text.txt", "r") or die("Unable to open file!");
    ...
    fclose($myfile);
?>

EDIT: And when finded this and saved replace the text file.

Upvotes: 0

Views: 1673

Answers (2)

Funk Forty Niner
Funk Forty Niner

Reputation: 74217

You can use strpos() or stripos()

<?php

$file = "file.txt";

$content = file($file);

foreach ($content as $line_num => $line) {
    if (false === (strpos($line, 'server-port=25565'))) continue;

    $content[$line_num] = "server-port=25585\n";
}

file_put_contents($file, $content);

Before

#Minecraft server properties
#Tue Sep 23 18:07:26 CEST 2014
generator-settings=
op-permission-level=4
allow-nether=true
level-name=world
enable-query=true
allow-flight=false
announce-player-achievements=true
server-port=25565
query.port=25565
level-type=DEFAULT
enable-rcon=false
force-gamemode=false
level-seed=
server-ip=
max-build-height=256

After

#Minecraft server properties
#Tue Sep 23 18:07:26 CEST 2014
generator-settings=
op-permission-level=4
allow-nether=true
level-name=world
enable-query=true
allow-flight=false
announce-player-achievements=true
server-port=25585
query.port=25565
level-type=DEFAULT
enable-rcon=false
force-gamemode=false
level-seed=
server-ip=
max-build-height=256

Edit

You can modify the $new_port variable to anything you want.

$path = "file.txt";
$new_port = 25585;
$content = file($path);

foreach ($content as $line_num => $line) {
    if (false === (strpos($line, 'server-port'))) continue;

    $content[$line_num] = "server-port=$new_port\n";
}

file_put_contents($path, $content);

Upvotes: 1

user1299518
user1299518

Reputation:

Since your format looks suspiciously like a PHP configuration file (.ini), why not using the parse_ini_file function?

$ini = parse_ini_file("text.txt");
echo "<pre>".print_r($ini,TRUE)."</pre>";

or

echo $ini["server-port"];

Change it:

$ini["server-port"] = 25585;

Save again your .txt file with:

$f = fopen("text.txt","w");
foreach($ini as $k=>$v) {
   fwrite($f,$k."=".$v.PHP_EOL);
}
fclose($f);

You may need to change your # comments symbol though with ;

UPDATE

$lines = file("text.txt",FILE_IGNORE_NEW_LINES);
// modify
foreach($lines as &$line) {
   $val = explode("=",$line);
   if ($val[0]=="server-port") {
      $val[1] = "25585";
      $line = implode("=",$val);
   }
}
unset($line);

// save again
$f = fopen("text.txt","w");
foreach($lines as $line) {
   fwrite($f,$line.PHP_EOL);
}
fclose($f);

Upvotes: 2

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