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@ 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 git.master, git.master_jit, rfc.property-hooks: string(3) "foo"

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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