Online PHP editor | output for LYfan

@ 2018-05-12T05:42:29Z

<?php

interface TemporaryFile {
    public function handle(\Closure $closure) : void;
    public function write(string $contents): void;
    public function getContents() : string;
    public function chmod(int $mode): void;
    public function getUri() : string; // aka realpath
    public function close() : void;
}

class IO
{
    /**
     * @return TemporaryFile
     */
    public static function getTemporaryFile() : TemporaryFile {
        return new class implements TemporaryFile {
            private $handle;

            public function __construct()
            {
                $this->handle = tmpfile();
            }

            public function handle(\Closure $closure) : void {
                $closure($this->handle);
            }

            public function getContents() : string {
                // according to PHP docs file_get_contents has much better performance
                // http://php.net/manual/en/function.fread.php
                return file_get_contents($this->getUri());
            }

            public function getUri() : string {
                return stream_get_meta_data($this->handle)['uri'];
            }

            public function close() : void {
                if (is_resource($this->handle))
                    fclose($this->handle);
            }

            public function write(string $contents): void
            {
                fwrite($this->handle, $contents);
            }

            public function chmod(int $mode): void
            {
                chmod($this->getUri(), $mode);
            }

            public function __destruct() {
                $this->close();
            }
        };
    }
}

$file = IO::getTemporaryFile();
$file->write('foo');
var_dump($file->getContents());

Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12: string(3) "foo"
Output for 7.0.0 - 7.0.33: Fatal error: Uncaught TypeError: Return value of class@anonymous::write() must be an instance of void, none returned in /in/LYfan:48 Stack trace: #0 /in/LYfan(63): class@anonymous->write('foo') #1 {main} thrown in /in/LYfan on line 48
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38: Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/LYfan on line 4
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/LYfan on line 4 Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/LYfan on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.5: Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/LYfan on line 4 Parse error: parse error, unexpected ':', expecting '{' or ';' in /in/LYfan on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected T_STRING in /in/LYfan on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1: Parse error: parse error, unexpected T_STRING in /in/LYfan on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/LYfan on line 3
Process exited with code 255.

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