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<?php // phpcs:ignore |
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/** |
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* Array-backed expression engine. |
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* |
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* @package PRAD |
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* @since 1.5.8 |
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*/ |
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|
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namespace PRAD\Includes\Common\Formula; |
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|
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defined( 'ABSPATH' ) || exit; |
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|
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/** |
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* Resolves [placeholders] from an associative array. |
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*/ |
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class Array_Expression_Engine extends Abstract_Expression_Engine { |
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|
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/** |
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* Evaluates an expression using provided dynamics. |
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* |
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* @param string $expression Expression to evaluate. |
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* @param array $dynamics Map of placeholder name => value. |
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* |
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* @return mixed |
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* @throws Expression_Exception If the expression cannot be parsed or evaluated. |
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*/ |
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public static function evaluate_expression( $expression, array $dynamics = array() ) { |
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$engine = new self(); |
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return $engine->evaluate( $expression, $dynamics ); |
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} |
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|
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/** |
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* Evaluate an expression, returning 0 when the expression is invalid. |
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* |
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* Useful when you prefer a soft-fail behavior instead of surfacing parser errors. |
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* |
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* @param string $expression Expression to evaluate. |
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* @param array $dynamics Map of placeholder name => value. |
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* |
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* @return mixed |
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*/ |
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public static function evaluate_expression_safe( $expression, array $dynamics = array() ) { |
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try { |
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return self::evaluate_expression( $expression, $dynamics ); |
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} catch ( Expression_Exception $e ) { |
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return 0; |
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} |
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} |
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|
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/** |
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* Retrieves the dynamic value for a given placeholder name from the context array. |
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* |
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* @param string $name The placeholder name to resolve. |
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* @param array $context Associative array of placeholder values. |
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* |
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* @return mixed |
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*/ |
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public function get_dynamic_value( $name, array $context = array() ) { |
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if ( array_key_exists( $name, $context ) ) { |
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return $context[ $name ]; |
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} |
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// By convention, missing variables are 0. |
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return 0; |
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} |
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} |
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