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<?php /** * This file is part of vfsStream. * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. * * @package org\bovigo\vfs */ namespace org\bovigo\vfs\content; /** * Default implementation for file contents based on simple strings. * * @since 1.3.0 */ class StringBasedFileContent extends SeekableFileContent implements FileContent { /** * actual content * * @type string */ private $content; /** * constructor * * @param string $content */ public function __construct($content) { $this->content = $content; } /** * returns actual content * * @return string */ public function content() { return $this->content; } /** * returns size of content * * @return int */ public function size() { return strlen($this->content); } /** * actual reading of length starting at given offset * * @param int $offset * @param int $count */ protected function doRead($offset, $count) { return (string) substr($this->content, $offset, $count); } /** * actual writing of data with specified length at given offset * * @param string $data * @param int $offset * @param int $length */ protected function doWrite($data, $offset, $length) { $this->content = substr($this->content, 0, $offset) . $data . substr($this->content, $offset + $length); } /** * Truncates a file to a given length * * @param int $size length to truncate file to * @return bool */ public function truncate($size) { if ($size > $this->size()) { // Pad with null-chars if we're "truncating up" $this->content .= str_repeat("\0", $size - $this->size()); } else { $this->content = substr($this->content, 0, $size); } return true; } }
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