anthony revised this gist . Go to revision
1 file changed, 97 insertions
environment_helper.php(file created)
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| 1 | + | <?php | |
| 2 | + | ||
| 3 | + | /** | |
| 4 | + | * Loads an environment variable | |
| 5 | + | * | |
| 6 | + | * @param string $name | |
| 7 | + | * @param mixed|null $def | |
| 8 | + | * @param bool $local | |
| 9 | + | * @return array|mixed|string|null | |
| 10 | + | */ | |
| 11 | + | function env(string $name, $def = null, bool $local = false) { | |
| 12 | + | $value = getenv($name, $local); | |
| 13 | + | if ($value) { | |
| 14 | + | return parse_raw_value($value); | |
| 15 | + | } | |
| 16 | + | return $def; | |
| 17 | + | } | |
| 18 | + | ||
| 19 | + | /** | |
| 20 | + | * Parses and filters values coming from environment or shell variables. | |
| 21 | + | * | |
| 22 | + | * @param $value | |
| 23 | + | * @return bool|mixed|string|void | |
| 24 | + | */ | |
| 25 | + | function parse_raw_value($value) { | |
| 26 | + | $value = trim($value); | |
| 27 | + | ||
| 28 | + | switch (strtolower($value)) { | |
| 29 | + | case 'true': | |
| 30 | + | case '(true)': | |
| 31 | + | return true; | |
| 32 | + | case 'false': | |
| 33 | + | case '(false)': | |
| 34 | + | return false; | |
| 35 | + | case 'empty': | |
| 36 | + | case '(empty)': | |
| 37 | + | return ''; | |
| 38 | + | case 'null': | |
| 39 | + | case '(null)': | |
| 40 | + | return; | |
| 41 | + | } | |
| 42 | + | ||
| 43 | + | // If there are any pair of quotes around tbe value then we need to remove it | |
| 44 | + | if (preg_match('/\A([\'"])(.*)\1\z/', $value, $matches)) { | |
| 45 | + | return $matches[2]; | |
| 46 | + | } | |
| 47 | + | ||
| 48 | + | return $value; | |
| 49 | + | } | |
| 50 | + | ||
| 51 | + | /** | |
| 52 | + | * Loads a DotEnv file. | |
| 53 | + | * | |
| 54 | + | * @param string|null $path | |
| 55 | + | * @param bool $optional | |
| 56 | + | * @return array | |
| 57 | + | */ | |
| 58 | + | function load_dotenv_file(string $path = null, bool $optional = true): array { | |
| 59 | + | $env = []; | |
| 60 | + | ||
| 61 | + | if (empty($path)) { | |
| 62 | + | $path = getcwd().DIRECTORY_SEPARATOR.'.env'; | |
| 63 | + | } | |
| 64 | + | ||
| 65 | + | if (!file_exists($path)) { | |
| 66 | + | if ($optional) { | |
| 67 | + | return $env; | |
| 68 | + | } | |
| 69 | + | throw new \InvalidArgumentException(sprintf('%s does not exist', $path)); | |
| 70 | + | } | |
| 71 | + | ||
| 72 | + | if (!is_readable($path)) { | |
| 73 | + | throw new \RuntimeException(sprintf('%s file is not readable', $path)); | |
| 74 | + | } | |
| 75 | + | ||
| 76 | + | $lines = file($path, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES); | |
| 77 | + | ||
| 78 | + | foreach ($lines as $line) { | |
| 79 | + | if (strpos(trim($line), '#') === 0) { | |
| 80 | + | continue; | |
| 81 | + | } | |
| 82 | + | ||
| 83 | + | list($name, $value) = explode('=', $line, 2); | |
| 84 | + | $name = trim($name); | |
| 85 | + | $value = trim($value, " \n\r\t\v\x00\""); | |
| 86 | + | $value = parse_raw_value($value); | |
| 87 | + | $env[$name] = $value; | |
| 88 | + | } | |
| 89 | + | ||
| 90 | + | foreach ($env as $name => $value) { | |
| 91 | + | putenv(sprintf('%s=%s', $name, $value)); | |
| 92 | + | $_ENV[$name] = $value; | |
| 93 | + | $_SERVER[$name] = $value; | |
| 94 | + | } | |
| 95 | + | ||
| 96 | + | return $env; | |
| 97 | + | } | |
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