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<?php |
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namespace PhpOffice\PhpSpreadsheet\Calculation\Engine; |
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class Logger |
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{ |
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/** |
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* Flag to determine whether a debug log should be generated by the calculation engine |
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* If true, then a debug log will be generated |
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* If false, then a debug log will not be generated. |
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* |
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* @var bool |
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*/ |
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private $writeDebugLog = false; |
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/** |
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* Flag to determine whether a debug log should be echoed by the calculation engine |
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* If true, then a debug log will be echoed |
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* If false, then a debug log will not be echoed |
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* A debug log can only be echoed if it is generated. |
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* |
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* @var bool |
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*/ |
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private $echoDebugLog = false; |
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/** |
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* The debug log generated by the calculation engine. |
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* |
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* @var string[] |
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*/ |
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private $debugLog = []; |
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/** |
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* The calculation engine cell reference stack. |
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* |
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* @var CyclicReferenceStack |
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*/ |
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private $cellStack; |
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/** |
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* Instantiate a Calculation engine logger. |
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* |
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* @param CyclicReferenceStack $stack |
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*/ |
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public function __construct(CyclicReferenceStack $stack) |
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{ |
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$this->cellStack = $stack; |
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} |
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/** |
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* Enable/Disable Calculation engine logging. |
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* |
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* @param bool $pValue |
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*/ |
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public function setWriteDebugLog($pValue) |
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{ |
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$this->writeDebugLog = $pValue; |
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} |
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/** |
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* Return whether calculation engine logging is enabled or disabled. |
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* |
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* @return bool |
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*/ |
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public function getWriteDebugLog() |
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{ |
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return $this->writeDebugLog; |
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} |
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/** |
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* Enable/Disable echoing of debug log information. |
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* |
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* @param bool $pValue |
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*/ |
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public function setEchoDebugLog($pValue) |
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{ |
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$this->echoDebugLog = $pValue; |
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} |
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/** |
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* Return whether echoing of debug log information is enabled or disabled. |
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* |
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* @return bool |
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*/ |
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public function getEchoDebugLog() |
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{ |
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return $this->echoDebugLog; |
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} |
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/** |
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* Write an entry to the calculation engine debug log. |
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*/ |
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public function writeDebugLog(...$args) |
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{ |
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// Only write the debug log if logging is enabled |
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if ($this->writeDebugLog) { |
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$message = implode($args); |
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$cellReference = implode(' -> ', $this->cellStack->showStack()); |
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if ($this->echoDebugLog) { |
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echo $cellReference, |
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($this->cellStack->count() > 0 ? ' => ' : ''), |
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$message, |
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PHP_EOL; |
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} |
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$this->debugLog[] = $cellReference . |
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($this->cellStack->count() > 0 ? ' => ' : '') . |
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$message; |
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} |
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} |
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/** |
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* Clear the calculation engine debug log. |
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*/ |
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public function clearLog() |
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{ |
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$this->debugLog = []; |
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} |
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/** |
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* Return the calculation engine debug log. |
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* |
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* @return string[] |
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*/ |
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public function getLog() |
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{ |
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return $this->debugLog; |
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} |
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} |
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PHPOffice /
PhpSpreadsheet
