135 lines
2.9 KiB
PHP
135 lines
2.9 KiB
PHP
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<?php
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namespace log\core;
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class FileDriver{
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/* CREATES A FILE WITH ITS NEEDED DIRECTORIES
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*
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* @path<String> Path of the needed file
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*
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* @return created<Boolean> If the file has been created successfully
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*
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*/
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public static function create($file){
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/* (0) Checks arguments */
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if( !is_string($file) || is_dir($file) )
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return false;
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/* (1) Creates file */
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try{
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return fclose( fopen($file, 'w') );
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}catch(\Exception $e){ return false; }
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}
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/* READS FILE'S CONTENT
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*
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* @file<String> File to read
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*
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*/
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public static function read($file){
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/* (0) Checks arguments */
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if( !is_string($file) )
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throw new \Exception('Wrong argument for read(<String>).');
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/* (1) Initializing driver on file (read-flag) */
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$driver = new \SplFileObject($file, 'r');
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/* (2) Read lines */
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$read = '';
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$line = 0;
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while( $driver->current() ){
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$read .= $driver->current();
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$driver->next();
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}
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/* (3) Returns result */
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return $read;
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}
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/* READS A FILE'S SPECIFIC LINE
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*
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* @file<String> File to read
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* @line<int> Line to read
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*
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*/
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public static function readline($file, $line){
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/* (0) Checks arguments */
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if( !is_string($file) || intval($line) !== $line )
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throw new \Exception('Wrong argument for readline(<String>, <int>).');
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/* (1) Initializing driver on file (read-flag) */
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$driver = new \SplFileObject($file, 'r');
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/* (2) Goto specific line */
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$driver->seek($line);
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/* (3) Return line's content */
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if( $driver->key() == $line )
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return $driver->current();
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else
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return null;
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}
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/* WRITES CONTENT TO A FILE
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*
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* @file<String> File to write to
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* @content<String> Content to write
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*
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* @return written<Boolean> Returns if the content have been written successfully
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*
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* @note: Creates file if it is possible with `fopen()`
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*
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*/
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public static function write($file, $content){
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/* (0) Checks arguments */
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if( !is_string($file) || !is_string($content) )
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return false;
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/* (1) Erase file */
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try{
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fclose( fopen($file, 'w') );
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}catch(\Exception $e){ return false; }
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/* (2) Get driver (write-flag) */
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$driver = new \SplFileObject($file, 'r+');
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/* (3) Writes content */
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return !is_null( $driver->fwrite($content) );
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}
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/* APPENDS CONTENT TO A FILE
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*
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* @file<String> File to append content to
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* @content<String> Content to append
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*
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* @return append<Boolean> Returns if the content have been append successfully
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*
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* @note: If file doesn't exists, returns false
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*
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*/
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public static function append($file, $content){
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/* (0) Checks arguments */
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if( !is_file($file) || !is_string($content) )
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return false;
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/* (1) Get driver (append-flag) */
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$driver = new \SplFileObject($file, 'a');
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/* (2) append content */
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return !is_null( $driver->fwrite($content.PHP_EOL) );
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}
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}
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?>
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