Online PHP editor | rfc for W8m7c

@ 2014-04-06T06:48:48Z

<?php

		// 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 ($temp = getenv('TMP') ) {
				if ((!empty($temp)) && (file_exists($temp))) { return realpath($temp); }
			}
			if ($temp = getenv('TEMP') ) {
				if ((!empty($temp)) && (file_exists($temp))) { return realpath($temp); }
			}
			if ($temp = getenv('TMPDIR') ) {
				if ((!empty($temp)) && (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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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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