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[Dotenv] Allow environment variables starting with an underscore #52928

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Merged
merged 1 commit into from
Dec 28, 2023
Merged

[Dotenv] Allow environment variables starting with an underscore #52928

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6 changes: 3 additions & 3 deletions src/Symfony/Component/Dotenv/Dotenv.php
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,7 @@
*/
final class Dotenv
{
public const VARNAME_REGEX = '(?i:[A-Z][A-Z0-9_]*+)';
public const VARNAME_REGEX = '(?i:_?[A-Z][A-Z0-9_]*+)';
public const STATE_VARNAME = 0;
public const STATE_VALUE = 1;

Expand Down Expand Up @@ -351,8 +351,8 @@ private function lexValue(): string
++$this->cursor;
$value = str_replace(['\\"', '\r', '\n'], ['"', "\r", "\n"], $value);
$resolvedValue = $value;
$resolvedValue = $this->resolveVariables($resolvedValue, $loadedVars);
$resolvedValue = $this->resolveCommands($resolvedValue, $loadedVars);
$resolvedValue = $this->resolveVariables($resolvedValue, $loadedVars);
$resolvedValue = str_replace('\\\\', '\\', $resolvedValue);
$v .= $resolvedValue;
} else {
Expand All @@ -374,8 +374,8 @@ private function lexValue(): string
}
$value = rtrim($value);
$resolvedValue = $value;
$resolvedValue = $this->resolveVariables($resolvedValue, $loadedVars);
$resolvedValue = $this->resolveCommands($resolvedValue, $loadedVars);
$resolvedValue = $this->resolveVariables($resolvedValue, $loadedVars);
$resolvedValue = str_replace('\\\\', '\\', $resolvedValue);

if ($resolvedValue === $value && preg_match('/\s+/', $value)) {
Expand Down
5 changes: 5 additions & 0 deletions src/Symfony/Component/Dotenv/Tests/DotenvTest.php
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Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,7 @@ public static function getEnvDataWithFormatErrors()
["FOO=\nBAR=\${FOO:-\'a{a}a}", "Unsupported character \"'\" found in the default value of variable \"\$FOO\". in \".env\" at line 2.\n...\\nBAR=\${FOO:-\'a{a}a}...\n ^ line 2 offset 24"],
["FOO=\nBAR=\${FOO:-a\$a}", "Unsupported character \"\$\" found in the default value of variable \"\$FOO\". in \".env\" at line 2.\n...FOO=\\nBAR=\${FOO:-a\$a}...\n ^ line 2 offset 20"],
["FOO=\nBAR=\${FOO:-a\"a}", "Unclosed braces on variable expansion in \".env\" at line 2.\n...FOO=\\nBAR=\${FOO:-a\"a}...\n ^ line 2 offset 17"],
['_=FOO', "Invalid character in variable name in \".env\" at line 1.\n..._=FOO...\n ^ line 1 offset 0"],
];

if ('\\' !== \DIRECTORY_SEPARATOR) {
Expand Down Expand Up @@ -175,6 +176,10 @@ public static function getEnvData()
["FOO=\nBAR=\${FOO:=TEST}", ['FOO' => 'TEST', 'BAR' => 'TEST']],
["FOO=\nBAR=\$FOO:=TEST}", ['FOO' => 'TEST', 'BAR' => 'TEST}']],
["FOO=foo\nFOOBAR=\${FOO}\${BAR}", ['FOO' => 'foo', 'FOOBAR' => 'foo']],

// underscores
['_FOO=BAR', ['_FOO' => 'BAR']],
['_FOO_BAR=FOOBAR', ['_FOO_BAR' => 'FOOBAR']],
];

if ('\\' !== \DIRECTORY_SEPARATOR) {
Expand Down