FileHelper::toLower() - Code Metrics - Inspection of "# 1.6.0 - 2016-09-11" - padosoft/io - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 838969...074806 )

by Lorenzo

created 2016-09-11 10:49 UTC

FileHelper::toLower() A

↳ Parent: FileHelper

Complexity

Conditions	2
Paths	2

Size

Total Lines	7
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	7
rs	9.4285
c	0
b	0
f	0
cc	2
eloc	4
nc	2
nop	1

<?php

namespace Padosoft\Io;

/**
 * Helper Class FileHelper
 * @package Padosoft\Io
 */
class FileHelper
{
    public static $arrMimeType = array(

        'txt' => 'text/plain',
        'htm' => 'text/html',
        'html' => 'text/html',
        'php' => 'text/html',
        'css' => 'text/css',
        'js' => 'application/javascript',
        'json' => 'application/json',
        'xml' => 'application/xml',
        'swf' => 'application/x-shockwave-flash',
        'flv' => 'video/x-flv',

        // images
        'png' => 'image/png',
        'jpe' => 'image/jpeg',
        'jpeg' => 'image/jpeg',
        'jpg' => 'image/jpeg',
        'gif' => 'image/gif',
        'bmp' => 'image/bmp',
        'ico' => 'image/vnd.microsoft.icon',
        'tiff' => 'image/tiff',
        'tif' => 'image/tiff',
        'svg' => 'image/svg+xml',
        'svgz' => 'image/svg+xml',

        // archives
        'zip' => 'application/zip',
        'rar' => 'application/x-rar-compressed',
        'exe' => 'application/x-msdownload',
        'msi' => 'application/x-msdownload',
        'cab' => 'application/vnd.ms-cab-compressed',

        // audio/video
        'mp3' => 'audio/mpeg',
        'qt' => 'video/quicktime',
        'mov' => 'video/quicktime',

        // adobe
        'pdf' => 'application/pdf',
        'psd' => 'image/vnd.adobe.photoshop',
        'ai' => 'application/postscript',
        'eps' => 'application/postscript',
        'ps' => 'application/postscript',

        // ms office
        'doc' => 'application/msword',
        'rtf' => 'application/rtf',
        'xls' => 'application/vnd.ms-excel',
        'ppt' => 'application/vnd.ms-powerpoint',

        // open office
        'odt' => 'application/vnd.oasis.opendocument.text',
        'ods' => 'application/vnd.oasis.opendocument.spreadsheet',
    );

    /**
     * Simple pathinfo wrapper.
     * @param string $filePath
     * @param int $fileInfOoptions
     * @return string
     * @see http://php.net/manual/en/function.pathinfo.php
     */
    public static function getPathinfoPart(string $filePath, int $fileInfOoptions) : string
    {
        if ($filePath === null || $filePath == '' || is_dir($filePath) || DirHelper::endsWithSlash($filePath)) {
            return '';
        }

        $info = pathinfo($filePath, $fileInfOoptions);

        if ($info == '.' && $fileInfOoptions == PATHINFO_DIRNAME) {
            return '';
        }
        return ($info !== null && $info != '') ? $info : '';
    }

    /**
     * Return the file name of file (without path and without extension).
     * Return empty string if $filePath is null, empty or is a directory.
     * Ex.: /public/upload/pippo.txt return '/public/upload'
     * @param string $filePath
     * @return string
     */
    public static function getDirname(string $filePath) : string
    {
        return self::getPathinfoPart($filePath, PATHINFO_DIRNAME);
    }

    /**
     * Return the file name of file (without path and with extension).
     * Return empty string if $filePath is null, empty or is a directory.
     * Ex.: /public/upload/pippo.txt return 'pippo.txt'
     * @param string $filePath
     * @return string
     */
    public static function getFilename(string $filePath) : string
    {
        return self::getPathinfoPart($filePath, PATHINFO_BASENAME);
    }

    /**
     * Return the file name of file (without path and without extension).
     * Return empty string if $filePath is null, empty or is a directory.
     * Ex.: /public/upload/pippo.txt return 'pippo'
     * @param string $filePath
     * @return string
     */
    public static function getFilenameWithoutExtension(string $filePath) : string
    {
        return self::getPathinfoPart($filePath, PATHINFO_FILENAME);
    }

    /**
     * Return the file name of file (without path and without extension).
     * Return empty string if $filePath is null, empty or is a directory.
     * Ex.: /public/upload/pippo.txt return '.txt'
     * @param string $filePath
     * @return string
     */
    public static function getFilenameExtension(string $filePath) : string
    {
        return self::getPathinfoPart($filePath, PATHINFO_EXTENSION);
    }

    /**
     * Returns whether the path has an extension.
     *
     * @param string $path The path string
     * @param string|array|null $extensions If null or not provided, checks if an
     *                                       extension exists, otherwise checks for
     *                                       the specified extension or array of extensions
     *                                       (with or without leading dot)
     * @param bool $ignoreCase Whether to ignore case-sensitivity
     *                                       (Requires mbstring extension for correct
     *                                       multi-byte character handling in extension)
     *
     * @return bool true if the path has an (or the specified) extension, otherwise false
     *
     * @see https://github.com/laradic/support/blob/master/src/Path.php
     */
    public static function hasExtension(string $path, $extensions = null, bool $ignoreCase = false) : bool
    {
        if ('' === $path) {
            return false;
        }
        $actualExtension = self::getFilenameExtension($path);
        if ($ignoreCase) {
            $actualExtension  = self::toLower($actualExtension );
        }
        // Only check if path has any extension
        if (null === $extensions) {
            return !empty($actualExtension);
        }
        // Make an array of extensions
        if (!is_array($extensions)) {
            $extensions = [ $extensions ];
        }
        foreach ($extensions as $key => $extension) {
            if ($ignoreCase) {
                $extension = self::toLower($extension);
            }
            // remove leading '.' in extensions array
            $extensions[ $key ] = ltrim($extension, '.');
        }
        return in_array($actualExtension, $extensions);
    }
    /**
     * Changes the extension of a path string.
     *
     * @param string $path The path string with filename.ext to change
     * @param string $extension New extension (with or without leading dot)
     *
     * @return string The path string with new file extension
     *
     * @see https://github.com/laradic/support/blob/master/src/Path.php
     */
    public static function changeExtension($path, $extension)
    {
        if ('' === $path) {
            return '';
        }
        $actualExtension = self::getFilenameExtension($path);
        $extension = ltrim($extension, '.');
        // No extension for paths
        if ('/' == substr($path, -1)) {
            return $path;
        }
        // No actual extension in path
        if (empty($actualExtension)) {
            return $path . ('.' == substr($path, -1) ? '' : '.') . $extension;
        }
        return substr($path, 0, -strlen($actualExtension)) . $extension;
    }

    /**
     * unlink file if exists.
     * Return false if exists and unlink fails or if filePath is a dir.
     * @param string $filePath
     * @return bool
     */
    public static function unlinkSafe(string $filePath) : bool
    {
        if (!FileHelper::fileExistsSafe($filePath)) {
            return false;
        }

        if (DirHelper::isDirSafe($filePath)) {
            return false;
        }

        return unlink($filePath);
    }

    /**
     * Check if passed file exists or not.
     * If dir passed return false.
     * @param string $filePath
     * @return bool
     */
    public static function fileExistsSafe(string $filePath) : bool
    {
        if ($filePath === null || $filePath == '') {
            return false;
        }

        if (DirHelper::isDirSafe($filePath)) {
            return false;
        }

        return file_exists($filePath);
    }

    /**
     * Find files matching a pattern (recursive with matched files in subdirs).
     * Returns an array containing the matched files (full path and not directories),
     * an empty array if no file matched or on error.
     * @param string $fileNamePattern if is null it set to base_path()/* if exists otherwise __DIR__/* . It support glob() string pattern.
     * @param int $flags glob() Valid flags
     * @return array of files (full path)
     */
    public static function findFiles(string $fileNamePattern, int $flags = 0)
    {
        $fallback = [];

        if (($fileNamePattern === null || $fileNamePattern == '') && function_exists('base_path')) {
            $fileNamePattern = DirHelper::addFinalSlash(base_path()) . '*';
        } elseif ($fileNamePattern === null || $fileNamePattern == '') {
            $fileNamePattern = __DIR__ . '/*';
        }

        if (DirHelper::endsWithSlash($fileNamePattern)) {
            $fileNamePattern .= '*';
        }

        $files = glob($fileNamePattern, $flags);

        //remove array of empty string
        $files = array_filter($files, function ($k) {
            return ($k !== null && $k != '');
        });

        if (empty($files)) {
            return $fallback;
        }

        foreach (glob(dirname($fileNamePattern) . '/*', GLOB_ONLYDIR | GLOB_NOSORT) as $dir) {

            if (empty($dir)) {
                continue;
            }

            $files = array_merge($files, self::findFiles($dir . '/' . basename($fileNamePattern), $flags));
            $files = array_filter($files, function ($k) {
                return ($k !== null && $k != '');
            });
        }

        $files = array_filter($files, function ($k) {
            return (!is_dir($k));
        });

        return $files === false ? $fallback : $files;
    }

    /**
     * Equals to file_put_contents but safe, i.e.
     * accept empty string and return false without raise an error,
     * accept a directory and return false without raise an error,
     * and if $forceCreateDirIfNotExists is set to true and path doesn't exists, file_put_contents fails
     * so, this class, try to create the complete path before save file.
     * @param string $filename file name including folder.
     * example :: /path/to/file/filename.ext or filename.ext
     * @param string $data The data to write.
     * @param bool $forceCreateDirIfNotExists if true and path not exists, try to create it.
     * @param string $modeMask The mask applied to dir if need to create some dir.
     * @param int $flags same flags used for file_put_contents.
     * @see more info: http://php.net/manual/en/function.file-put-contents.php
     * @return bool TRUE file created succesfully, return FALSE if failed to create file.
     */
    public static function filePutContentsSafe(
        string $filename,
        string $data,
        bool $forceCreateDirIfNotExists = true,
        string $modeMask = '0755',
        int $flags = 0
    ) : bool
    {
        if ($filename === null || $filename == '') {
            return false;
        }

        //check if a directory passed ($filename ends with slash)
        if (DirHelper::endsWithSlash($filename)) {
            return false;
        }

        $dirName = dirname($filename);

        if (!$forceCreateDirIfNotExists && !DirHelper::isDirSafe($dirName)) {
            return false;
        }

        if (!DirHelper::checkDirExistOrCreate(DirHelper::addFinalSlash($dirName), $modeMask)) {
            return false;
        }

        return file_put_contents($filename, $data, $flags);
    }

    /**
     * Return mime type of a passed file in optimized mode.
     * @param string $fullPathFile
     * @return string
     */
    public static function getMimeType(string $fullPathFile) : string
    {
        $mime_types = self::$arrMimeType;
        $ext = strtolower(self::getFilenameExtension($fullPathFile));
        if (array_key_exists($ext, $mime_types)) {
            return $mime_types[$ext];
        }
        $mimetype = self::getMimeTypeByMimeContentType($fullPathFile);
        if (isNotNullOrEmpty($mimetype)) {
            return $mimetype;
        }
        $mimetype = self::getMimeTypeByFinfo($fullPathFile);
        if (isNotNullOrEmpty($mimetype)) {
            return $mimetype;
        }
        return 'application/octet-stream';
    }

    /**
     * Return mime type of a passed file using finfo
     * @param string $fullPathFile
     * @return string return empty string if it fails.
     */
    public static function getMimeTypeByFinfo(string $fullPathFile) : string
    {
        if (!function_exists('finfo_open')) {
            return '';
        }
        $finfo = finfo_open(FILEINFO_MIME);
        $mimetype = finfo_file($finfo, $fullPathFile);
        finfo_close($finfo);
        if ($mimetype === false) {
            return '';
        }
        return $mimetype;
    }

    /**
     * Return mime type of a passed file using mime_content_type()
     * @param string $fullPathFile
     * @return string return empty string if it fails.
     */
    public static function getMimeTypeByMimeContentType(string $fullPathFile) : string
    {
        if (!function_exists('mime_content_type')) {
            return '';
        }
        return mime_content_type($fullPathFile);
    }

    /**
     * Converts string to lower-case (multi-byte safe if mbstring is installed).
     *
     * @param string $str The string
     *
     * @return string Lower case string
     * @see https://github.com/laradic/support/blob/master/src/Path.php
     */
    private static function toLower($str)
    {
        if (function_exists('mb_strtolower')) {
            return mb_strtolower($str, mb_detect_encoding($str));
        }
        return strtolower($str);
    }
}


1			<?php
2
3			namespace Padosoft\Io;
4
5			/**
6			* Helper Class FileHelper
7			* @package Padosoft\Io
8			*/
9			class FileHelper
10			{
11			public static $arrMimeType = array(
12
13			'txt' => 'text/plain',
14			'htm' => 'text/html',
15			'html' => 'text/html',
16			'php' => 'text/html',
17			'css' => 'text/css',
18			'js' => 'application/javascript',
19			'json' => 'application/json',
20			'xml' => 'application/xml',
21			'swf' => 'application/x-shockwave-flash',
22			'flv' => 'video/x-flv',
23
24			// images
25			'png' => 'image/png',
26			'jpe' => 'image/jpeg',
27			'jpeg' => 'image/jpeg',
28			'jpg' => 'image/jpeg',
29			'gif' => 'image/gif',
30			'bmp' => 'image/bmp',
31			'ico' => 'image/vnd.microsoft.icon',
32			'tiff' => 'image/tiff',
33			'tif' => 'image/tiff',
34			'svg' => 'image/svg+xml',
35			'svgz' => 'image/svg+xml',
36
37			// archives
38			'zip' => 'application/zip',
39			'rar' => 'application/x-rar-compressed',
40			'exe' => 'application/x-msdownload',
41			'msi' => 'application/x-msdownload',
42			'cab' => 'application/vnd.ms-cab-compressed',
43
44			// audio/video
45			'mp3' => 'audio/mpeg',
46			'qt' => 'video/quicktime',
47			'mov' => 'video/quicktime',
48
49			// adobe
50			'pdf' => 'application/pdf',
51			'psd' => 'image/vnd.adobe.photoshop',
52			'ai' => 'application/postscript',
53			'eps' => 'application/postscript',
54			'ps' => 'application/postscript',
55
56			// ms office
57			'doc' => 'application/msword',
58			'rtf' => 'application/rtf',
59			'xls' => 'application/vnd.ms-excel',
60			'ppt' => 'application/vnd.ms-powerpoint',
61
62			// open office
63			'odt' => 'application/vnd.oasis.opendocument.text',
64			'ods' => 'application/vnd.oasis.opendocument.spreadsheet',
65			);
66
67			/**
68			* Simple pathinfo wrapper.
69			* @param string $filePath
70			* @param int $fileInfOoptions
71			* @return string
72			* @see http://php.net/manual/en/function.pathinfo.php
73			*/
74			public static function getPathinfoPart(string $filePath, int $fileInfOoptions) : string
75			{
76			if ($filePath === null \|\| $filePath == '' \|\| is_dir($filePath) \|\| DirHelper::endsWithSlash($filePath)) {
77			return '';
78			}
79
80			$info = pathinfo($filePath, $fileInfOoptions);
81
82			if ($info == '.' && $fileInfOoptions == PATHINFO_DIRNAME) {
83			return '';
84			}
85			return ($info !== null && $info != '') ? $info : '';
86			}
87
88			/**
89			* Return the file name of file (without path and without extension).
90			* Return empty string if $filePath is null, empty or is a directory.
91			* Ex.: /public/upload/pippo.txt return '/public/upload'
92			* @param string $filePath
93			* @return string
94			*/
95			public static function getDirname(string $filePath) : string
96			{
97			return self::getPathinfoPart($filePath, PATHINFO_DIRNAME);
98			}
99
100			/**
101			* Return the file name of file (without path and with extension).
102			* Return empty string if $filePath is null, empty or is a directory.
103			* Ex.: /public/upload/pippo.txt return 'pippo.txt'
104			* @param string $filePath
105			* @return string
106			*/
107			public static function getFilename(string $filePath) : string
108			{
109			return self::getPathinfoPart($filePath, PATHINFO_BASENAME);
110			}
111
112			/**
113			* Return the file name of file (without path and without extension).
114			* Return empty string if $filePath is null, empty or is a directory.
115			* Ex.: /public/upload/pippo.txt return 'pippo'
116			* @param string $filePath
117			* @return string
118			*/
119			public static function getFilenameWithoutExtension(string $filePath) : string
120			{
121			return self::getPathinfoPart($filePath, PATHINFO_FILENAME);
122			}
123
124			/**
125			* Return the file name of file (without path and without extension).
126			* Return empty string if $filePath is null, empty or is a directory.
127			* Ex.: /public/upload/pippo.txt return '.txt'
128			* @param string $filePath
129			* @return string
130			*/
131			public static function getFilenameExtension(string $filePath) : string
132			{
133			return self::getPathinfoPart($filePath, PATHINFO_EXTENSION);
134			}
135
136			/**
137			* Returns whether the path has an extension.
138			*
139			* @param string $path The path string
140			* @param string\|array\|null $extensions If null or not provided, checks if an
141			* extension exists, otherwise checks for
142			* the specified extension or array of extensions
143			* (with or without leading dot)
144			* @param bool $ignoreCase Whether to ignore case-sensitivity
145			* (Requires mbstring extension for correct
146			* multi-byte character handling in extension)
147			*
148			* @return bool true if the path has an (or the specified) extension, otherwise false
149			*
150			* @see https://github.com/laradic/support/blob/master/src/Path.php
151			*/
152			public static function hasExtension(string $path, $extensions = null, bool $ignoreCase = false) : bool
153			{
154			if ('' === $path) {
155			return false;
156			}
157			$actualExtension = self::getFilenameExtension($path);
158			if ($ignoreCase) {
159			$actualExtension = self::toLower($actualExtension );
160			}
161			// Only check if path has any extension
162			if (null === $extensions) {
163			return !empty($actualExtension);
164			}
165			// Make an array of extensions
166			if (!is_array($extensions)) {
167			$extensions = [ $extensions ];
168			}
169			foreach ($extensions as $key => $extension) {
170			if ($ignoreCase) {
171			$extension = self::toLower($extension);
172			}
173			// remove leading '.' in extensions array
174			$extensions[ $key ] = ltrim($extension, '.');
175			}
176			return in_array($actualExtension, $extensions);
177			}
178			/**
179			* Changes the extension of a path string.
180			*
181			* @param string $path The path string with filename.ext to change
182			* @param string $extension New extension (with or without leading dot)
183			*
184			* @return string The path string with new file extension
185			*
186			* @see https://github.com/laradic/support/blob/master/src/Path.php
187			*/
188			public static function changeExtension($path, $extension)
189			{
190			if ('' === $path) {
191			return '';
192			}
193			$actualExtension = self::getFilenameExtension($path);
194			$extension = ltrim($extension, '.');
195			// No extension for paths
196			if ('/' == substr($path, -1)) {
197			return $path;
198			}
199			// No actual extension in path
200			if (empty($actualExtension)) {
201			return $path . ('.' == substr($path, -1) ? '' : '.') . $extension;
202			}
203			return substr($path, 0, -strlen($actualExtension)) . $extension;
204			}
205
206			/**
207			* unlink file if exists.
208			* Return false if exists and unlink fails or if filePath is a dir.
209			* @param string $filePath
210			* @return bool
211			*/
212			public static function unlinkSafe(string $filePath) : bool
213			{
214			if (!FileHelper::fileExistsSafe($filePath)) {
215			return false;
216			}
217
218			if (DirHelper::isDirSafe($filePath)) {
219			return false;
220			}
221
222			return unlink($filePath);
223			}
224
225			/**
226			* Check if passed file exists or not.
227			* If dir passed return false.
228			* @param string $filePath
229			* @return bool
230			*/
231			public static function fileExistsSafe(string $filePath) : bool
232			{
233			if ($filePath === null \|\| $filePath == '') {
234			return false;
235			}
236
237			if (DirHelper::isDirSafe($filePath)) {
238			return false;
239			}
240
241			return file_exists($filePath);
242			}
243
244			/**
245			* Find files matching a pattern (recursive with matched files in subdirs).
246			* Returns an array containing the matched files (full path and not directories),
247			* an empty array if no file matched or on error.
248			* @param string $fileNamePattern if is null it set to base_path()/* if exists otherwise __DIR__/* . It support glob() string pattern.
249			* @param int $flags glob() Valid flags
250			* @return array of files (full path)
251			*/
252			public static function findFiles(string $fileNamePattern, int $flags = 0)
253			{
254			$fallback = [];
255
256			if (($fileNamePattern === null \|\| $fileNamePattern == '') && function_exists('base_path')) {
257			$fileNamePattern = DirHelper::addFinalSlash(base_path()) . '*';
258			} elseif ($fileNamePattern === null \|\| $fileNamePattern == '') {
259			$fileNamePattern = __DIR__ . '/*';
260			}
261
262			if (DirHelper::endsWithSlash($fileNamePattern)) {
263			$fileNamePattern .= '*';
264			}
265
266			$files = glob($fileNamePattern, $flags);
267
268			//remove array of empty string
269			$files = array_filter($files, function ($k) {
270			return ($k !== null && $k != '');
271			});
272
273			if (empty($files)) {
274			return $fallback;
275			}
276
277			foreach (glob(dirname($fileNamePattern) . '/*', GLOB_ONLYDIR \| GLOB_NOSORT) as $dir) {
278
279			if (empty($dir)) {
280			continue;
281			}
282
283			$files = array_merge($files, self::findFiles($dir . '/' . basename($fileNamePattern), $flags));
284			$files = array_filter($files, function ($k) {
285			return ($k !== null && $k != '');
286			});
287			}
288
289			$files = array_filter($files, function ($k) {
290			return (!is_dir($k));
291			});
292
293			return $files === false ? $fallback : $files;
294			}
295
296			/**
297			* Equals to file_put_contents but safe, i.e.
298			* accept empty string and return false without raise an error,
299			* accept a directory and return false without raise an error,
300			* and if $forceCreateDirIfNotExists is set to true and path doesn't exists, file_put_contents fails
301			* so, this class, try to create the complete path before save file.
302			* @param string $filename file name including folder.
303			* example :: /path/to/file/filename.ext or filename.ext
304			* @param string $data The data to write.
305			* @param bool $forceCreateDirIfNotExists if true and path not exists, try to create it.
306			* @param string $modeMask The mask applied to dir if need to create some dir.
307			* @param int $flags same flags used for file_put_contents.
308			* @see more info: http://php.net/manual/en/function.file-put-contents.php
309			* @return bool TRUE file created succesfully, return FALSE if failed to create file.
310			*/
311			public static function filePutContentsSafe(
312			string $filename,
313			string $data,
314			bool $forceCreateDirIfNotExists = true,
315			string $modeMask = '0755',
316			int $flags = 0
317			) : bool
318			{
319			if ($filename === null \|\| $filename == '') {
320			return false;
321			}
322
323			//check if a directory passed ($filename ends with slash)
324			if (DirHelper::endsWithSlash($filename)) {
325			return false;
326			}
327
328			$dirName = dirname($filename);
329
330			if (!$forceCreateDirIfNotExists && !DirHelper::isDirSafe($dirName)) {
331			return false;
332			}
333
334			if (!DirHelper::checkDirExistOrCreate(DirHelper::addFinalSlash($dirName), $modeMask)) {
335			return false;
336			}
337
338			return file_put_contents($filename, $data, $flags);
339			}
340
341			/**
342			* Return mime type of a passed file in optimized mode.
343			* @param string $fullPathFile
344			* @return string
345			*/
346			public static function getMimeType(string $fullPathFile) : string
347			{
348			$mime_types = self::$arrMimeType;
349			$ext = strtolower(self::getFilenameExtension($fullPathFile));
350			if (array_key_exists($ext, $mime_types)) {
351			return $mime_types[$ext];
352			}
353			$mimetype = self::getMimeTypeByMimeContentType($fullPathFile);
354			if (isNotNullOrEmpty($mimetype)) {
355			return $mimetype;
356			}
357			$mimetype = self::getMimeTypeByFinfo($fullPathFile);
358			if (isNotNullOrEmpty($mimetype)) {
359			return $mimetype;
360			}
361			return 'application/octet-stream';
362			}
363
364			/**
365			* Return mime type of a passed file using finfo
366			* @param string $fullPathFile
367			* @return string return empty string if it fails.
368			*/
369			public static function getMimeTypeByFinfo(string $fullPathFile) : string
370			{
371			if (!function_exists('finfo_open')) {
372			return '';
373			}
374			$finfo = finfo_open(FILEINFO_MIME);
375			$mimetype = finfo_file($finfo, $fullPathFile);
376			finfo_close($finfo);
377			if ($mimetype === false) {
378			return '';
379			}
380			return $mimetype;
381			}
382
383			/**
384			* Return mime type of a passed file using mime_content_type()
385			* @param string $fullPathFile
386			* @return string return empty string if it fails.
387			*/
388			public static function getMimeTypeByMimeContentType(string $fullPathFile) : string
389			{
390			if (!function_exists('mime_content_type')) {
391			return '';
392			}
393			return mime_content_type($fullPathFile);
394			}
395
396			/**
397			* Converts string to lower-case (multi-byte safe if mbstring is installed).
398			*
399			* @param string $str The string
400			*
401			* @return string Lower case string
402			* @see https://github.com/laradic/support/blob/master/src/Path.php
403			*/
404			private static function toLower($str)
405			{
406			if (function_exists('mb_strtolower')) {
407			return mb_strtolower($str, mb_detect_encoding($str));
408			}
409			return strtolower($str);
410			}
411			}
412

padosoft / io

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FileHelper::toLower() A

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