Added Not(!) logical operator and median function with tests. (#121)
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commit
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3 changed files with 138 additions and 111 deletions
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@ -5,7 +5,7 @@
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## Features:
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* Built in support for +, -, *, /, % and power (^) operators
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* Paratheses () and arrays [] are fully supported
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* Logical operators (==, !=, <, <, >=, <=, &&, ||)
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* Logical operators (==, !=, <, <, >=, <=, &&, ||, !)
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* Built in support for most PHP math functions
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* Support for BCMath Arbitrary Precision Math
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* Support for variable number of function parameters and optional function parameters
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@ -71,6 +71,7 @@ Default functions:
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* log10 (lg)
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* log1p
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* max
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* median
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* min
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* octdec
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* pi
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@ -125,7 +126,7 @@ $executor->addOperator(new Operator(
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```
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## Logical operators:
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Logical operators (==, !=, <, <, >=, <=, &&, ||) are supported, but logically they can only return true (1) or false (0). In order to leverage them, use the built in **if** function:
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Logical operators (==, !=, <, <, >=, <=, &&, ||, !) are supported, but logically they can only return true (1) or false (0). In order to leverage them, use the built in **if** function:
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```
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if($a > $b, $a - $b, $b - $a)
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@ -85,10 +85,10 @@ class MathExecutor
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/**
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* Execute expression
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*
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* @throws Exception\IncorrectBracketsException
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* @throws Exception\IncorrectExpressionException
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* @throws Exception\UnknownOperatorException
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* @throws UnknownVariableException
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* @throws Exception\IncorrectBracketsException
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* @return int|float|string|null
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*/
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public function execute(string $expression, bool $cache = true)
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@ -113,7 +113,7 @@ class MathExecutor
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/**
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* Add function to executor
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*
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* @param string $name Name of function
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* @param string $name Name of function
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* @param callable|null $function Function
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*
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* @throws ReflectionException
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@ -182,8 +182,8 @@ class MathExecutor
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/**
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* Add variables to executor
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*
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* @param array<string, float|int|string> $variables
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* @param bool $clear Clear previous variables
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* @param array<string, float|int|string> $variables
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* @param bool $clear Clear previous variables
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* @throws \Exception
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*/
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public function setVars(array $variables, bool $clear = true) : self
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@ -285,7 +285,7 @@ class MathExecutor
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*/
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public function setDivisionByZeroIsZero() : self
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{
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$this->addOperator(new Operator('/', false, 180, static fn ($a, $b) => 0 == $b ? 0 : $a / $b));
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$this->addOperator(new Operator('/', false, 180, static fn($a, $b) => 0 == $b ? 0 : $a / $b));
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return $this;
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}
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@ -311,23 +311,23 @@ class MathExecutor
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public function useBCMath(int $scale = 2) : self
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{
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\bcscale($scale);
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$this->addOperator(new Operator('+', false, 170, static fn ($a, $b) => \bcadd("{$a}", "{$b}")));
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$this->addOperator(new Operator('-', false, 170, static fn ($a, $b) => \bcsub("{$a}", "{$b}")));
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$this->addOperator(new Operator('uNeg', false, 200, static fn ($a) => \bcsub('0.0', "{$a}")));
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$this->addOperator(new Operator('*', false, 180, static fn ($a, $b) => \bcmul("{$a}", "{$b}")));
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$this->addOperator(new Operator('/', false, 180, static function($a, $b) {
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/** @todo PHP8: Use throw as expression -> static fn($a, $b) => 0 == $b ? throw new DivisionByZeroException() : $a / $b */
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if (0 == $b) {
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throw new DivisionByZeroException();
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}
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\bcscale($scale);
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$this->addOperator(new Operator('+', false, 170, static fn($a, $b) => \bcadd("{$a}", "{$b}")));
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$this->addOperator(new Operator('-', false, 170, static fn($a, $b) => \bcsub("{$a}", "{$b}")));
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$this->addOperator(new Operator('uNeg', false, 200, static fn($a) => \bcsub('0.0', "{$a}")));
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$this->addOperator(new Operator('*', false, 180, static fn($a, $b) => \bcmul("{$a}", "{$b}")));
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$this->addOperator(new Operator('/', false, 180, static function($a, $b) {
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/** @todo PHP8: Use throw as expression -> static fn($a, $b) => 0 == $b ? throw new DivisionByZeroException() : $a / $b */
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if (0 == $b) {
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throw new DivisionByZeroException();
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}
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return \bcdiv("{$a}", "{$b}");
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}));
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$this->addOperator(new Operator('^', true, 220, static fn ($a, $b) => \bcpow("{$a}", "{$b}")));
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$this->addOperator(new Operator('%', false, 180, static fn ($a, $b) => \bcmod("{$a}", "{$b}")));
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return \bcdiv("{$a}", "{$b}");
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}));
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$this->addOperator(new Operator('^', true, 220, static fn($a, $b) => \bcpow("{$a}", "{$b}")));
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$this->addOperator(new Operator('%', false, 180, static fn($a, $b) => \bcmod("{$a}", "{$b}")));
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return $this;
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return $this;
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}
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/**
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@ -359,15 +359,16 @@ class MathExecutor
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protected function defaultOperators() : array
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{
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return [
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'+' => [static fn ($a, $b) => $a + $b, 170, false],
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'-' => [static fn ($a, $b) => $a - $b, 170, false],
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'+' => [static fn($a, $b) => $a + $b, 170, false],
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'-' => [static fn($a, $b) => $a - $b, 170, false],
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// unary positive token
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'uPos' => [static fn ($a) => $a, 200, false],
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'uPos' => [static fn($a) => $a, 200, false],
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// unary minus token
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'uNeg' => [static fn ($a) => 0 - $a, 200, false],
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'*' => [static fn ($a, $b) => $a * $b, 180, false],
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'uNeg' => [static fn($a) => 0 - $a, 200, false],
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'*' => [static fn($a, $b) => $a * $b, 180, false],
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'/' => [
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static function($a, $b) { /** @todo PHP8: Use throw as expression -> static fn($a, $b) => 0 == $b ? throw new DivisionByZeroException() : $a / $b */
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static function($a, $b) {
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/** @todo PHP8: Use throw as expression -> static fn($a, $b) => 0 == $b ? throw new DivisionByZeroException() : $a / $b */
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if (0 == $b) {
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throw new DivisionByZeroException();
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}
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@ -377,16 +378,17 @@ class MathExecutor
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180,
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false
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],
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'^' => [static fn ($a, $b) => $a ** $b, 220, true],
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'%' => [static fn ($a, $b) => $a % $b, 180, false],
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'&&' => [static fn ($a, $b) => $a && $b, 100, false],
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'||' => [static fn ($a, $b) => $a || $b, 90, false],
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'==' => [static fn ($a, $b) => \is_string($a) || \is_string($b) ? 0 == \strcmp($a, $b) : $a == $b, 140, false],
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'!=' => [static fn ($a, $b) => \is_string($a) || \is_string($b) ? 0 != \strcmp($a, $b) : $a != $b, 140, false],
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'>=' => [static fn ($a, $b) => $a >= $b, 150, false],
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'>' => [static fn ($a, $b) => $a > $b, 150, false],
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'<=' => [static fn ($a, $b) => $a <= $b, 150, false],
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'<' => [static fn ($a, $b) => $a < $b, 150, false],
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'^' => [static fn($a, $b) => $a ** $b, 220, true],
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'%' => [static fn($a, $b) => $a % $b, 180, false],
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'&&' => [static fn($a, $b) => $a && $b, 100, false],
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'||' => [static fn($a, $b) => $a || $b, 90, false],
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'==' => [static fn($a, $b) => \is_string($a) || \is_string($b) ? 0 == \strcmp($a, $b) : $a == $b, 140, false],
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'!=' => [static fn($a, $b) => \is_string($a) || \is_string($b) ? 0 != \strcmp($a, $b) : $a != $b, 140, false],
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'>=' => [static fn($a, $b) => $a >= $b, 150, false],
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'>' => [static fn($a, $b) => $a > $b, 150, false],
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'<=' => [static fn($a, $b) => $a <= $b, 150, false],
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'<' => [static fn($a, $b) => $a < $b, 150, false],
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'!' => [static fn($a) => ! $a, 190, false],
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];
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}
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@ -399,28 +401,28 @@ class MathExecutor
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protected function defaultFunctions() : array
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{
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return [
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'abs' => static fn ($arg) => \abs($arg),
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'acos' => static fn ($arg) => \acos($arg),
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'acosh' => static fn ($arg) => \acosh($arg),
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'arcsin' => static fn ($arg) => \asin($arg),
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'arcctg' => static fn ($arg) => M_PI / 2 - \atan($arg),
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'arccot' => static fn ($arg) => M_PI / 2 - \atan($arg),
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'arccotan' => static fn ($arg) => M_PI / 2 - \atan($arg),
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'arcsec' => static fn ($arg) => \acos(1 / $arg),
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'arccosec' => static fn ($arg) => \asin(1 / $arg),
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'arccsc' => static fn ($arg) => \asin(1 / $arg),
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'arccos' => static fn ($arg) => \acos($arg),
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'arctan' => static fn ($arg) => \atan($arg),
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'arctg' => static fn ($arg) => \atan($arg),
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'array' => static fn (...$args) => $args,
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'asin' => static fn ($arg) => \asin($arg),
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'atan' => static fn ($arg) => \atan($arg),
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'atan2' => static fn ($arg1, $arg2) => \atan2($arg1, $arg2),
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'atanh' => static fn ($arg) => \atanh($arg),
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'atn' => static fn ($arg) => \atan($arg),
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'abs' => static fn($arg) => \abs($arg),
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'acos' => static fn($arg) => \acos($arg),
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'acosh' => static fn($arg) => \acosh($arg),
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'arcsin' => static fn($arg) => \asin($arg),
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'arcctg' => static fn($arg) => M_PI / 2 - \atan($arg),
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'arccot' => static fn($arg) => M_PI / 2 - \atan($arg),
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'arccotan' => static fn($arg) => M_PI / 2 - \atan($arg),
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'arcsec' => static fn($arg) => \acos(1 / $arg),
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'arccosec' => static fn($arg) => \asin(1 / $arg),
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'arccsc' => static fn($arg) => \asin(1 / $arg),
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'arccos' => static fn($arg) => \acos($arg),
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'arctan' => static fn($arg) => \atan($arg),
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'arctg' => static fn($arg) => \atan($arg),
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'array' => static fn(...$args) => $args,
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'asin' => static fn($arg) => \asin($arg),
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'atan' => static fn($arg) => \atan($arg),
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'atan2' => static fn($arg1, $arg2) => \atan2($arg1, $arg2),
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'atanh' => static fn($arg) => \atanh($arg),
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'atn' => static fn($arg) => \atan($arg),
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'avg' => static function($arg1, ...$args) {
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if (\is_array($arg1)){
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if (0 === \count($arg1)){
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if (\is_array($arg1)) {
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if (0 === \count($arg1)) {
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throw new \InvalidArgumentException('avg() must have at least one argument!');
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}
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@ -431,27 +433,27 @@ class MathExecutor
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return \array_sum($args) / \count($args);
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},
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'bindec' => static fn ($arg) => \bindec($arg),
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'ceil' => static fn ($arg) => \ceil($arg),
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'cos' => static fn ($arg) => \cos($arg),
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'cosec' => static fn ($arg) => 1 / \sin($arg),
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'csc' => static fn ($arg) => 1 / \sin($arg),
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'cosh' => static fn ($arg) => \cosh($arg),
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'ctg' => static fn ($arg) => \cos($arg) / \sin($arg),
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'cot' => static fn ($arg) => \cos($arg) / \sin($arg),
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'cotan' => static fn ($arg) => \cos($arg) / \sin($arg),
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'cotg' => static fn ($arg) => \cos($arg) / \sin($arg),
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'ctn' => static fn ($arg) => \cos($arg) / \sin($arg),
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'decbin' => static fn ($arg) => \decbin($arg),
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'dechex' => static fn ($arg) => \dechex($arg),
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'decoct' => static fn ($arg) => \decoct($arg),
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'deg2rad' => static fn ($arg) => \deg2rad($arg),
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'exp' => static fn ($arg) => \exp($arg),
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'expm1' => static fn ($arg) => \expm1($arg),
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'floor' => static fn ($arg) => \floor($arg),
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'fmod' => static fn ($arg1, $arg2) => \fmod($arg1, $arg2),
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'hexdec' => static fn ($arg) => \hexdec($arg),
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'hypot' => static fn ($arg1, $arg2) => \hypot($arg1, $arg2),
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'bindec' => static fn($arg) => \bindec($arg),
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'ceil' => static fn($arg) => \ceil($arg),
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'cos' => static fn($arg) => \cos($arg),
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'cosec' => static fn($arg) => 1 / \sin($arg),
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'csc' => static fn($arg) => 1 / \sin($arg),
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'cosh' => static fn($arg) => \cosh($arg),
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'ctg' => static fn($arg) => \cos($arg) / \sin($arg),
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'cot' => static fn($arg) => \cos($arg) / \sin($arg),
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'cotan' => static fn($arg) => \cos($arg) / \sin($arg),
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'cotg' => static fn($arg) => \cos($arg) / \sin($arg),
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'ctn' => static fn($arg) => \cos($arg) / \sin($arg),
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'decbin' => static fn($arg) => \decbin($arg),
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'dechex' => static fn($arg) => \dechex($arg),
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'decoct' => static fn($arg) => \decoct($arg),
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'deg2rad' => static fn($arg) => \deg2rad($arg),
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'exp' => static fn($arg) => \exp($arg),
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'expm1' => static fn($arg) => \expm1($arg),
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'floor' => static fn($arg) => \floor($arg),
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'fmod' => static fn($arg1, $arg2) => \fmod($arg1, $arg2),
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'hexdec' => static fn($arg) => \hexdec($arg),
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'hypot' => static fn($arg1, $arg2) => \hypot($arg1, $arg2),
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'if' => function($expr, $trueval, $falseval) {
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if (true === $expr || false === $expr) {
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$exres = $expr;
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return $this->execute($falseval);
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},
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'intdiv' => static fn ($arg1, $arg2) => \intdiv($arg1, $arg2),
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'ln' => static fn ($arg) => \log($arg),
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'lg' => static fn ($arg) => \log10($arg),
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'log' => static fn ($arg) => \log($arg),
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'log10' => static fn ($arg) => \log10($arg),
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'log1p' => static fn ($arg) => \log1p($arg),
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'intdiv' => static fn($arg1, $arg2) => \intdiv($arg1, $arg2),
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'ln' => static fn($arg) => \log($arg),
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'lg' => static fn($arg) => \log10($arg),
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'log' => static fn($arg) => \log($arg),
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'log10' => static fn($arg) => \log10($arg),
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'log1p' => static fn($arg) => \log1p($arg),
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'max' => static function($arg1, ...$args) {
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if (\is_array($arg1) && 0 === \count($arg1)){
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if (\is_array($arg1) && 0 === \count($arg1)) {
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throw new \InvalidArgumentException('max() must have at least one argument!');
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}
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return \max(\is_array($arg1) ? $arg1 : [$arg1, ...$args]);
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},
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'median' => static function($arg1, ...$args) {
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if (\is_array($arg1)) {
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if (0 === \count($arg1)) {
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throw new \InvalidArgumentException('Array must contain at least one element!');
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}
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$finalArgs = $arg1;
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} else {
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$finalArgs = [$arg1, ...$args];
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}
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$count = \count($finalArgs);
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\sort($finalArgs);
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$index = \floor($count / 2);
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return ($count & 1) ? $finalArgs[$index] : ($finalArgs[$index - 1] + $finalArgs[$index]) / 2;
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},
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'min' => static function($arg1, ...$args) {
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if (\is_array($arg1) && 0 === \count($arg1)){
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if (\is_array($arg1) && 0 === \count($arg1)) {
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throw new \InvalidArgumentException('min() must have at least one argument!');
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}
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return \min(\is_array($arg1) ? $arg1 : [$arg1, ...$args]);
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},
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'octdec' => static fn ($arg) => \octdec($arg),
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'pi' => static fn () => M_PI,
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'pow' => static fn ($arg1, $arg2) => $arg1 ** $arg2,
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'rad2deg' => static fn ($arg) => \rad2deg($arg),
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'round' => static fn ($num, int $precision = 0) => \round($num, $precision),
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'sin' => static fn ($arg) => \sin($arg),
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'sinh' => static fn ($arg) => \sinh($arg),
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'sec' => static fn ($arg) => 1 / \cos($arg),
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'sqrt' => static fn ($arg) => \sqrt($arg),
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'tan' => static fn ($arg) => \tan($arg),
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'tanh' => static fn ($arg) => \tanh($arg),
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'tn' => static fn ($arg) => \tan($arg),
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'tg' => static fn ($arg) => \tan($arg)
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'octdec' => static fn($arg) => \octdec($arg),
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'pi' => static fn() => M_PI,
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'pow' => static fn($arg1, $arg2) => $arg1 ** $arg2,
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'rad2deg' => static fn($arg) => \rad2deg($arg),
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'round' => static fn($num, int $precision = 0) => \round($num, $precision),
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'sin' => static fn($arg) => \sin($arg),
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'sinh' => static fn($arg) => \sinh($arg),
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'sec' => static fn($arg) => 1 / \cos($arg),
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'sqrt' => static fn($arg) => \sqrt($arg),
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'tan' => static fn($arg) => \tan($arg),
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'tanh' => static fn($arg) => \tanh($arg),
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'tn' => static fn($arg) => \tan($arg),
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'tg' => static fn($arg) => \tan($arg)
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];
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}
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@ -256,6 +256,8 @@ class MathTest extends TestCase
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['7 % 4'],
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['99 % 4'],
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['123 % 7'],
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['!(1||0)'],
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['!(1&&0)'],
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];
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}
|
||||
|
||||
|
@ -493,6 +495,8 @@ class MathTest extends TestCase
|
|||
['7 % 4'],
|
||||
['99 % 4'],
|
||||
['123 % 7'],
|
||||
['!(1||0)'],
|
||||
['!(1&&0)'],
|
||||
];
|
||||
}
|
||||
|
||||
|
@ -600,7 +604,7 @@ class MathTest extends TestCase
|
|||
$this->assertEquals("'teststring", $calculator->execute("'\'teststring'"));
|
||||
$this->assertEquals("teststring'", $calculator->execute("'teststring\''"));
|
||||
|
||||
$calculator->addFunction('concat', static fn ($arg1, $arg2) => $arg1 . $arg2);
|
||||
$calculator->addFunction('concat', static fn($arg1, $arg2) => $arg1 . $arg2);
|
||||
$this->assertEquals('test"ing', $calculator->execute('concat("test\"","ing")'));
|
||||
$this->assertEquals("test'ing", $calculator->execute("concat('test\'','ing')"));
|
||||
}
|
||||
|
@ -614,7 +618,7 @@ class MathTest extends TestCase
|
|||
$this->assertEquals(\max([1, 5, 2]), $calculator->execute('max(array(1, 5, 2))'));
|
||||
$calculator->addFunction('arr_with_max_elements', static function($arg1, ...$args) {
|
||||
$args = \is_array($arg1) ? $arg1 : [$arg1, ...$args];
|
||||
\usort($args, static fn ($arr1, $arr2) => (\is_countable($arr2) ? \count($arr2) : 0) <=> \count($arr1));
|
||||
\usort($args, static fn($arr1, $arr2) => (\is_countable($arr2) ? \count($arr2) : 0) <=> \count($arr1));
|
||||
|
||||
return $args[0];
|
||||
});
|
||||
|
@ -625,7 +629,7 @@ class MathTest extends TestCase
|
|||
{
|
||||
$calculator = new MathExecutor();
|
||||
|
||||
$calculator->addFunction('concat', static fn ($arg1, $arg2) => $arg1 . $arg2);
|
||||
$calculator->addFunction('concat', static fn($arg1, $arg2) => $arg1 . $arg2);
|
||||
$this->assertEquals('testing', $calculator->execute('concat("test","ing")'));
|
||||
$this->assertEquals('testing', $calculator->execute("concat('test','ing')"));
|
||||
}
|
||||
|
@ -633,31 +637,34 @@ class MathTest extends TestCase
|
|||
public function testFunction() : void
|
||||
{
|
||||
$calculator = new MathExecutor();
|
||||
$calculator->addFunction('round', static fn ($arg) => \round($arg));
|
||||
$calculator->addFunction('round', static fn($arg) => \round($arg));
|
||||
$this->assertEquals(\round(100 / 30), $calculator->execute('round(100/30)'));
|
||||
}
|
||||
|
||||
public function testFunctionUnlimitedParameters() : void
|
||||
{
|
||||
$calculator = new MathExecutor();
|
||||
$calculator->addFunction('give_me_an_array', static fn () => [5, 3, 7, 9, 8]);
|
||||
$calculator->addFunction('give_me_an_array', static fn() => [5, 3, 7, 9, 8]);
|
||||
$this->assertEquals(6.4, $calculator->execute('avg(give_me_an_array())'));
|
||||
$this->assertEquals(10, $calculator->execute('avg(12,8,15,5)'));
|
||||
$this->assertEquals(3, $calculator->execute('min(give_me_an_array())'));
|
||||
$this->assertEquals(1, $calculator->execute('min(1,2,3)'));
|
||||
$this->assertEquals(9, $calculator->execute('max(give_me_an_array())'));
|
||||
$this->assertEquals(3, $calculator->execute('max(1,2,3)'));
|
||||
$this->assertEquals(7, $calculator->execute('median(give_me_an_array())'));
|
||||
$this->assertEquals(4, $calculator->execute('median(1,3,5,7)'));
|
||||
$calculator->setVar('monthly_salaries', [100, 200, 300]);
|
||||
$this->assertEquals([100, 200, 300], $calculator->execute('$monthly_salaries'));
|
||||
$this->assertEquals(200, $calculator->execute('avg($monthly_salaries)'));
|
||||
$this->assertEquals(\min([100, 200, 300]), $calculator->execute('min($monthly_salaries)'));
|
||||
$this->assertEquals(\max([100, 200, 300]), $calculator->execute('max($monthly_salaries)'));
|
||||
$this->assertEquals(200, $calculator->execute('median($monthly_salaries)'));
|
||||
}
|
||||
|
||||
public function testFunctionOptionalParameters() : void
|
||||
{
|
||||
$calculator = new MathExecutor();
|
||||
$calculator->addFunction('round', static fn ($num, $precision = 0) => \round($num, $precision));
|
||||
$calculator->addFunction('round', static fn($num, $precision = 0) => \round($num, $precision));
|
||||
$this->assertEquals(\round(11.176), $calculator->execute('round(11.176)'));
|
||||
$this->assertEquals(\round(11.176, 2), $calculator->execute('round(11.176,2)'));
|
||||
}
|
||||
|
@ -666,7 +673,7 @@ class MathTest extends TestCase
|
|||
{
|
||||
$calculator = new MathExecutor();
|
||||
$this->expectException(IncorrectNumberOfFunctionParametersException::class);
|
||||
$calculator->addFunction('myfunc', static fn ($arg1, $arg2) => $arg1 + $arg2);
|
||||
$calculator->addFunction('myfunc', static fn($arg1, $arg2) => $arg1 + $arg2);
|
||||
$calculator->execute('myfunc(1)');
|
||||
}
|
||||
|
||||
|
@ -674,7 +681,7 @@ class MathTest extends TestCase
|
|||
{
|
||||
$calculator = new MathExecutor();
|
||||
$this->expectException(IncorrectNumberOfFunctionParametersException::class);
|
||||
$calculator->addFunction('myfunc', static fn ($arg1, $arg2) => $arg1 + $arg2);
|
||||
$calculator->addFunction('myfunc', static fn($arg1, $arg2) => $arg1 + $arg2);
|
||||
$calculator->execute('myfunc(1,2,3)');
|
||||
}
|
||||
|
||||
|
@ -826,7 +833,7 @@ class MathTest extends TestCase
|
|||
$calculator = new MathExecutor();
|
||||
$calculator->addFunction(
|
||||
'round',
|
||||
static fn ($value, $decimals) => \round($value, $decimals)
|
||||
static fn($value, $decimals) => \round($value, $decimals)
|
||||
);
|
||||
$expression = 'round(100 * 1.111111, 2)';
|
||||
$phpResult = 0;
|
||||
|
@ -840,7 +847,7 @@ class MathTest extends TestCase
|
|||
public function testFunctionsWithQuotes() : void
|
||||
{
|
||||
$calculator = new MathExecutor();
|
||||
$calculator->addFunction('concat', static fn ($first, $second) => $first . $second);
|
||||
$calculator->addFunction('concat', static fn($first, $second) => $first . $second);
|
||||
$this->assertEquals('testing', $calculator->execute('concat("test", "ing")'));
|
||||
$this->assertEquals('testing', $calculator->execute("concat('test', 'ing')"));
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue