PHP code example of jstewmc / chunker

    
        
<?php
require_once('vendor/autoload.php');

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

    

jstewmc / chunker example snippets

// Create an example file with multi-byte characters (characters in the string
// "from $ to " are one-byte in UTF-8, while the euro symbol, "€", is a three-
// byte character in UTF-8)
file_put_contents('example.txt', 'from $ to €');

// Read 12 bytes of the file.
$length = 12;

echo file_get_contents('example.txt', false, null, 0, $length);

use Jstewmc\Chunker\Text;

// Instantiate a new text chunker with UTF-8 encoding and a chunk size of four
// bytes (these constructor arguments are covered in more detail below).
$chunker = new Text('from $ to €', 'UTF-8', 4);

// Loop through the file's chunks, echo the chunk, and advance to the next one.
while (false !== ($chunk = $chunker->current())) {
	echo "'$chunk'";
	$chunker->next();
}

use Jstewmc\Chunker\File;

$chunker = new File('path/to/file.ext');

use Jstewmc\Chunker\Text;

$chunker = new Chunker\Text('foo bar baz');

use Jstewmc\Chunker\Text;

$chunker = new Text('foo', 'UTF-8');

use Jstewmc\Chunker\Text;

$chunker = new Text('foo');

use Jstewmc\Chunker\{File, Text};

// Use chunks of 8,192 bytes.
$chunker1 = new File('/path/to/file.ext', null, 8192);

// Use chunks of 2,000 characters.
$chunker2 = new Text('foo bar baz', null, 2000);

use Jstewmc\Chunker\Text;

$chunker = new Text('foo');

$chunker->getCurrentChunk();   
// returns "foo" (the first chunk is immediately available upon instantiation)

$chunker->getNextChunk();      
// returns false (advances the internal pointer and returns next chunk)

$chunker->getPreviousChunk();  
// returns "foo" (rewinds the internal pointer and returns previous chunk)

$chunker->getCurrentChunk();   
// returns "foo"

$chunker->getCurrentChunk();   
// returns "foo" (because the internal pointer hasn't moved)

while (false !== ($chunk = $chunker->current())) {
	//
	// do something with the $chunk...
	//
	// advance the pointer for the next iteration
	$chunker->next();
}

use Jstewmc\Chunker\Text;

$chunker = new Text('foo bar baz', null, 3);

$chunker->countChunks();  // returns 4 (the count is always rounded up)

use Jstewmc\Chunker\Text;

$chunker1 = new Text('foo', null, 3);

$chunker1->hasChunk();   // returns true
$chunker1->hasChunks();  // returns true

$chunker2 = new Text('foo bar', null, 3);

$chunker->hasChunk();   // returns false (there are three, three-char chunks)
$chunker->hasChunks();  // returns true

use Jstewmc\Chunker\Text;

$chunker = new Text('foo bar', null, 3);

$chunker->countChunks();  // returns 3 (there are three, three-character chunks)

$chunker->hasPreviousChunk();  // returns false (the pointer is at zero)
$chunker->hasNextChunk();      // returns true

$chunker->next(); // advance to the next chunk

$chunker->hasPreviousChunk();  // returns true
$chunker->hasNextChunk();      // returns true

$chunker->next();

$chunker->hasPreviousChunk();  // returns true
$chunker->hasNextChunk();      // returns false (the pointer it at the end)

use Jstewmc\Chunker\Text;

$chunker = new Text('foo bar', null, 3);

$chunker->current();  // returns "foo"

$chunker->next();     // returns " ba"
$chunker->current();  // returns " ba"

$chunker->reset();    

$chunker->current();  // returns "foo"