PHPExcel_Shared_File Class Reference

Collaboration diagram for PHPExcel_Shared_File:

Static Public Member Functions
static	file_exists ($pFilename)
	Verify if a file exists.
static	realpath ($pFilename)
	Returns canonicalized absolute pathname, also for ZIP archives.
static	sys_get_temp_dir ()
	Get the systems temporary directory.

Detailed Description

Definition at line 36 of file File.php.

Member Function Documentation

static PHPExcel_Shared_File::file_exists (   $pFilename )

static

Verify if a file exists.

Parameters

string

$pFilename

Filename

Returns

bool

Definition at line 44 of file File.php.

Referenced by PHPExcel_Writer_Excel2007_ContentTypes\_getImageMimeType(), realpath(), and sys_get_temp_dir().

                                                       {
                // Sick construction, but it seems that
                // file_exists returns strange values when
                // doing the original file_exists on ZIP archives...
                if ( strtolower(substr($pFilename, 0, 3)) == 'zip' ) {
                        // Open ZIP file and verify if the file exists
                        $zipFile                = substr($pFilename, 6, strpos($pFilename, '#') - 6);
                        $archiveFile    = substr($pFilename, strpos($pFilename, '#') + 1);

                        $zip = new ZipArchive();
                        if ($zip->open($zipFile) === true) {
                                $returnValue = ($zip->getFromName($archiveFile) !== false);
                                $zip->close();
                                return $returnValue;
                        } else {
                                return false;
                        }
                } else {
                        // Regular file_exists
                        return file_exists($pFilename);
                }
        }

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static PHPExcel_Shared_File::realpath (   $pFilename )

static

Returns canonicalized absolute pathname, also for ZIP archives.

Parameters

string

$pFilename

Returns

string

Definition at line 73 of file File.php.

References file_exists().

Referenced by PHPExcel_Reader_Excel2007\_getFromZipArchive(), PHPExcel_Reader_Excel2007\load(), and sys_get_temp_dir().

                                                    {
                // Returnvalue
                $returnValue = '';

                // Try using realpath()
                if (file_exists($pFilename)) {
                        $returnValue = realpath($pFilename);
                }

                // Found something?
                if ($returnValue == '' || is_null($returnValue)) {
                        $pathArray = explode('/' , $pFilename);
                        while(in_array('..', $pathArray) && $pathArray[0] != '..') {
                                for ($i = 0; $i < count($pathArray); ++$i) {
                                        if ($pathArray[$i] == '..' && $i > 0) {
                                                unset($pathArray[$i]);
                                                unset($pathArray[$i - 1]);
                                                break;
                                        }
                                }
                        }
                        $returnValue = implode('/', $pathArray);
                }

                // Return
                return $returnValue;
        }

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static PHPExcel_Shared_File::sys_get_temp_dir ( )

static

Get the systems temporary directory.

Returns

string

Definition at line 106 of file File.php.

References file_exists(), and realpath().

Referenced by PHPExcel_Shared_OLE_PPS_Root\__construct(), PHPExcel_CachedObjectStorage_DiscISAM\__construct(), PHPExcel_Writer_PDF\__construct(), PHPExcel_CachedObjectStorage_DiscISAM\copyCellCollection(), and PHPExcel_Shared_ZipArchive\open().

        {
                // sys_get_temp_dir is only available since PHP 5.2.1
                // http://php.net/manual/en/function.sys-get-temp-dir.php#94119

                if ( !function_exists('sys_get_temp_dir')) {
                        if ($temp = getenv('TMP') ) {
                                if (file_exists($temp)) { return realpath($temp); }
                        }
                        if ($temp = getenv('TEMP') ) {
                                if (file_exists($temp)) { return realpath($temp); }
                        }
                        if ($temp = getenv('TMPDIR') ) {
                                if (file_exists($temp)) { return realpath($temp); }
                        }

                        // trick for creating a file in system's temporary dir
                        // without knowing the path of the system's temporary dir
                        $temp = tempnam(__FILE__, '');
                        if (file_exists($temp)) {
                                unlink($temp);
                                return realpath(dirname($temp));
                        }

                        return null;
                }

                // use ordinary built-in PHP function
                //      There should be no problem with the 5.2.4 Suhosin realpath() bug, because this line should only
                //              be called if we're running 5.2.1 or earlier
                return realpath(sys_get_temp_dir());
        }

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The documentation for this class was generated from the following file:

• Services/Excel/PHPExcel/1.7.6/Classes/PHPExcel/Shared/File.php