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28 lines
746 B
PHP
28 lines
746 B
PHP
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<?php
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declare(strict_types=1);
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/**
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* Gets the value of an environment variable or the contents of the file
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* at the path specified by its value if it exists with a suffix of "_FILE"
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*/
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function getFileEnv(string $envVarName, ?string $defaultValue): ?string {
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$FILE_ENV_VAR_SUFFIX = "_FILE";
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$fileEnvVarName = "$envVarName$FILE_ENV_VAR_SUFFIX";
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$filename = getenv($fileEnvVarName);
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$envVarValue = getenv($envVarName);
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$configValue = null;
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if ($filename && file_exists($filename)) {
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$configValue = trim(file_get_contents($filename));
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} else if ($envVarValue) {
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$configValue = $envVarValue;
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} else if ($defaultValue) {
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$configValue = $defaultValue;
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}
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return $configValue;
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}
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?>
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