temp file

gistfile1.php

<?php
namespace Makasim\File;

/**
 * @author Kotlyar Maksim <[email protected]>
 * @since 8/15/12
 */
class TempFile extends \SplFileInfo 
{
    /**
     * @var array
     */
    protected static $tempFiles = array();

    /**
     * {@inheritdoc}
     */
    public function __construct($fileName)
    {
        self::registerRemoveTempFilesHandler();
        self::$tempFiles[$fileName] = $fileName;
        
        parent::__construct($fileName);
    }

    /**
     * Persist file so that it would not be removed at the end of the script execution.
     * 
     * @return \SplFileInfo
     */
    public function persist()
    {
        unset(self::$tempFiles[$this]);
        
        return new \SplFileInfo($this);
    }

    /**
     * Creates a temp file with unique filename. 
     * 
     * @param string $prefix
     * 
     * @return TempFile
     */
    public static function generate($prefix = 'php-tmp-file')
    {
        return new static(tempnam(sys_get_temp_dir(), $prefix));
    }

    /**
     * Creates a temp file from an exist file keeping it safe.
     * 
     * @param mixed $file
     * @param string $prefix
     * 
     * @return TempFile
     */
    public static function from($file, $prefix = 'php-tmp-file')
    {
        $tmpFile = static::generate($prefix);
        
        copy($file, $tmpFile);
        
        return $tmpFile;
    }
    
    private static function registerRemoveTempFilesHandler()
    {
        static $registered = false;
        if ($registered) {
            return;
        }
        
        $tempFiles = &self::$tempFiles;
        
        register_shutdown_function(function() use ($tempFiles) {
            foreach ($tempFiles as $tempFile) {
                if (file_exists($tempFile)) {
                    @unlink($tempFile);
                }
            }
        });
        
        $registered = true;
    }
}