<?php namespace Spatie\Backtrace\CodeSnippets; use SplFileObject; class FileSnippetProvider implements SnippetProvider { /** @var \SplFileObject */ protected $file; public function __construct(string $path) { $this->file = new SplFileObject($path); } public function numberOfLines(): int { $this->file->seek(PHP_INT_MAX); return $this->file->key() + 1; } public function getLine(?int $lineNumber = null): string { if (is_null($lineNumber)) { return $this->getNextLine(); } $this->file->seek($lineNumber - 1); return $this->file->current(); } public function getNextLine(): string { $this->file->next(); return $this->file->current(); } }