PHP code example of mallardduck / immutable-read-file

1. Go to this page and download the library: Download mallardduck/immutable-read-file library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

mallardduck / immutable-read-file example snippets


use MallardDuck\ImmutableReadFile\ImmutableFile;

$fileName = __DIR__ . '/tests/stubs/json.txt'; // CONTENT: {"hello": "world"}

$step1 = ImmutableFile::fromFilePath($fileName);
echo $step1->fgetc(); // { - The first character of your file
echo $step1->fgetc(); // { - The first character of your file, again
$step2 = $step1->advanceBytePosition(); // A new r/o immutable entity advanced a single byte by default.
echo $step2->fgetc(); // " - The second character of your file
echo $step2->fgetc(); // " - The second character of your file, again


$fileName = __DIR__ . '/tests/stubs/json.txt'; // CONTENT: {"hello": "world"}

$step1 = fopen($fileName, 'r');
echo fgetc($step1) . PHP_EOL; // { - The first character of your file
echo fgetc($step1) . PHP_EOL; // " - The second character of your file
$step2 = fopen($fileName, 'r');
fseek($step2, 1);
echo fgetc($step2) . PHP_EOL; // " - The second character of your file
echo fgetc($step2) . PHP_EOL; // h - The third character of your file


$fileName = __DIR__ . '/tests/stubs/json.txt'; // CONTENT: {"hello": "world"}

$step1 = new SplFileObject($fileName, 'r');
echo $step1->fgetc() . PHP_EOL; // { - The first character of your file
echo $step1->fgetc() . PHP_EOL; // " - The second character of your file
$step2 = new SplFileObject($fileName, 'r');
$step2->fseek(1);
echo $step2->fgetc() . PHP_EOL; // " - The second character of your file
echo $step2->fgetc() . PHP_EOL; // h - The third character of your file