Files
development/www/configs/read_env_file.php
Clemens Schwaighofer 51a0276268 Autoloader updates, read env to class, DB IO update
Move autolaoder loading from config.master.php to config.php and before
we read config.master.php
The read env function has moved into a class and is launched after the
auto loader has been loaded

DB IO class update with better error reporting with last error set and
error history of all errors in order.
TODO: per query or per action error grouping
2022-02-24 20:04:48 +09:00

90 lines
2.7 KiB
PHP

<?php
// config.php reads auto loader and uses CoreLibs version of this
// DEPRECATED for here
declare(strict_types=1);
/**
* parses .env file
*
* Rules for .env file
* variable is any alphanumeric string followed by = on the same line
* content starts with the first non space part
* strings can be contained in "
* strings MUST be contained in " if they are multiline
* if string starts with " it will match until another " is found
* anything AFTER " is ignored
* if there are two variables with the same name only the first is used
* variables are case sensitive
*
* @param string $path Folder to file, default is __DIR__
* @param string $env_file What file to load, default is .env
* @return int -1 other error
* 0 for success full load
* 1 for file loadable, but no data inside
* 2 for file not readable
* 3 for file not found
*/
function readEnvFile(string $path = __DIR__, string $env_file = '.env'): int
{
// default -1;
$status = -1;
$env_file_target = $path . DIRECTORY_SEPARATOR . $env_file;
// this is not a file -> abort
if (!is_file($env_file_target)) {
$status = 3;
return $status;
}
// cannot open file -> abort
if (($fp = fopen($env_file_target, 'r')) === false) {
$status = 2;
return $status;
}
// set to readable but not yet any data loaded
$status = 1;
$block = false;
$var = '';
while ($line = fgets($fp)) {
// main match for variable = value part
if (preg_match("/^\s*([\w_.]+)\s*=\s*((\"?).*)/", $line, $matches)) {
$var = $matches[1];
$value = $matches[2];
$quotes = $matches[3];
// wirte only if env is not set yet, and write only the first time
if (empty($_ENV[$var])) {
if (!empty($quotes)) {
// match greedy for first to last so we move any " if there are
if (preg_match('/^"(.*[^\\\])"/U', $value, $matches)) {
$value = $matches[1];
} else {
// this is a multi line
$block = true;
// first " in string remove
// add removed new line back because this is a multi line
$value = ltrim($value, '"') . PHP_EOL;
}
}
// if block is set, we strip line of slashes
$_ENV[$var] = $block === true ? stripslashes($value) : $value;
// set successful load
$status = 0;
}
} elseif ($block === true) {
// read line until there is a unescaped "
// this also strips everything after the last "
if (preg_match("/(.*[^\\\])\"/", $line, $matches)) {
$block = false;
// strip ending " and EVERYTHING that follows after that
$line = $matches[1];
}
// strip line of slashes
$_ENV[$var] .= stripslashes($line);
}
}
fclose($fp);
return $status;
}
// __END__