73 lines
2.1 KiB
PHP
73 lines
2.1 KiB
PHP
<?php
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namespace PhpOffice\PhpSpreadsheet\Calculation;
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class CalculationBase
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{
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/**
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* Get a list of all implemented functions as an array of function objects.
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*
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* @return array<string, array{category: string, functionCall: string|string[], argumentCount: string, passCellReference?: bool, passByReference?: bool[], custom?: bool}>
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*/
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public static function getFunctions(): array
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{
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return FunctionArray::$phpSpreadsheetFunctions;
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}
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/**
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* Get address of list of all implemented functions as an array of function objects.
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*
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* @return array<string, array<string, mixed>>
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*/
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protected static function &getFunctionsAddress(): array
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{
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return FunctionArray::$phpSpreadsheetFunctions;
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}
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/**
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* @param array{category: string, functionCall: string|string[], argumentCount: string, passCellReference?: bool, passByReference?: bool[], custom?: bool} $value
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*/
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public static function addFunction(string $key, array $value): bool
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{
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$key = strtoupper($key);
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if (
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array_key_exists($key, FunctionArray::$phpSpreadsheetFunctions)
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&& !self::isDummy($key)
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) {
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return false;
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}
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$value['custom'] = true;
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FunctionArray::$phpSpreadsheetFunctions[$key] = $value;
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return true;
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}
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private static function isDummy(string $key): bool
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{
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// key is already known to exist
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$functionCall = FunctionArray::$phpSpreadsheetFunctions[$key]['functionCall'] ?? null;
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if (!is_array($functionCall)) {
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return false;
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}
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if (($functionCall[1] ?? '') !== 'DUMMY') {
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return false;
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}
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return true;
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}
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public static function removeFunction(string $key): bool
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{
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$key = strtoupper($key);
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if (array_key_exists($key, FunctionArray::$phpSpreadsheetFunctions)) {
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if (FunctionArray::$phpSpreadsheetFunctions[$key]['custom'] ?? false) {
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unset(FunctionArray::$phpSpreadsheetFunctions[$key]);
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return true;
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}
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}
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return false;
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}
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}
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