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39 lines
910 B
39 lines
910 B
4 years ago
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<?php
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/**
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* This variable parser uses PHP's internal code engine. Because it does
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* this, it can represent all inputs; however, it is dangerous and cannot
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* be used by users.
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*/
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class HTMLPurifier_VarParser_Native extends HTMLPurifier_VarParser
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{
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/**
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* @param mixed $var
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* @param int $type
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* @param bool $allow_null
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* @return null|string
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*/
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protected function parseImplementation($var, $type, $allow_null)
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{
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return $this->evalExpression($var);
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}
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/**
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* @param string $expr
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* @return mixed
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* @throws HTMLPurifier_VarParserException
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*/
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protected function evalExpression($expr)
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{
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$var = null;
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$result = eval("\$var = $expr;");
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if ($result === false) {
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throw new HTMLPurifier_VarParserException("Fatal error in evaluated code");
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}
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return $var;
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}
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}
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// vim: et sw=4 sts=4
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