diff options
Diffstat (limited to 'src/NXP/MathExecutor.php')
| -rw-r--r-- | src/NXP/MathExecutor.php | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/NXP/MathExecutor.php b/src/NXP/MathExecutor.php index 434246a..f45335c 100644 --- a/src/NXP/MathExecutor.php +++ b/src/NXP/MathExecutor.php @@ -416,7 +416,7 @@ class MathExecutor */ public function getVar(string $variable) { - if (!isset($this->variables[$variable])) { + if (!array_key_exists($variable, $this->variables)) { throw new UnknownVariableException("Variable ({$variable}) not set"); } return $this->variables[$variable]; |