MIF_E31222691/laravel/file.php

159 lines
2.8 KiB
PHP

<?php namespace Laravel;
class File {
/**
* All of the MIME types understood by the manager.
*
* @var array
*/
private $mimes;
/**
* Create a new file engine instance.
*
* @param array $mimes
* @return void
*/
public function __construct($mimes)
{
$this->mimes = $mimes;
}
/**
* Determine if a file exists.
*
* @param string $path
* @return bool
*/
public function exists($path)
{
return file_exists($path);
}
/**
* Get the contents of a file.
*
* @param string $path
* @return string
*/
public function get($path)
{
return file_get_contents($path);
}
/**
* Write to a file.
*
* @param string $path
* @param string $data
* @return int
*/
public function put($path, $data)
{
return file_put_contents($path, $data, LOCK_EX);
}
/**
* Append to a file.
*
* @param string $path
* @param string $data
* @return int
*/
public function append($path, $data)
{
return file_put_contents($path, $data, LOCK_EX | FILE_APPEND);
}
/**
* Delete a file.
*
* @param string $path
* @return void
*/
public function delete($path)
{
@unlink($path);
}
/**
* Extract the file extension from a file path.
*
* @param string $path
* @return string
*/
public function extension($path)
{
return pathinfo($path, PATHINFO_EXTENSION);
}
/**
* Get the file type of a given file.
*
* @param string $path
* @return string
*/
public function type($path)
{
return filetype($path);
}
/**
* Get the file size of a given file.
*
* @param string $file
* @return int
*/
public function size($path)
{
return filesize($path);
}
/**
* Get the file's last modification time.
*
* @param string $path
* @return int
*/
public function modified($path)
{
return filemtime($path);
}
/**
* Get a file MIME type by extension.
*
* @param string $extension
* @param string $default
* @return string
*/
public function mime($extension, $default = 'application/octet-stream')
{
if ( ! array_key_exists($extension, $this->mimes)) return $default;
return (is_array($this->mimes[$extension])) ? $this->mimes[$extension][0] : $this->mimes[$extension];
}
/**
* Determine if a file is a given type.
*
* The Fileinfo PHP extension will be used to determine the MIME type of the file.
*
* @param string $extension
* @param string $path
* @return bool
*/
public function is($extension, $path)
{
if ( ! array_key_exists($extension, $this->mimes))
{
throw new \Exception("File extension [$extension] is unknown. Cannot determine file type.");
}
$mime = finfo_file(finfo_open(FILEINFO_MIME_TYPE), $path);
return (is_array($this->mimes[$extension])) ? in_array($mime, $this->mimes[$extension]) : $mime === $this->mimes[$extension];
}
}