rules for php 7.4 which is on ubuntu 20. May also need this version of rules for php7.2. Base off of Development version: 7.x-2.x-dev updated 15 Mar 2020 at 21:52 UTC
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<?php
/**
* @file
* Contains rules integration for the php module needed during evaluation.
*
* @addtogroup rules
*
* @{
*/
/**
* A class implementing a rules input evaluator processing PHP.
*/
class RulesPHPEvaluator extends RulesDataInputEvaluator {
/**
* Overrides RulesDataProcessor::editAccess().
*/
public function editAccess() {
return parent::editAccess() && (user_access('use PHP for settings') || drupal_is_cli());
}
/**
* Helper function to find variables in PHP code.
*
* @param string $text
* The PHP code.
* @param array $var_info
* Array with variable names as keys.
*/
public static function getUsedVars($text, $var_info) {
if (strpos($text, '<?') !== FALSE) {
$used_vars = array();
foreach ($var_info as $name => $info) {
if (strpos($text, '$' . $name) !== FALSE) {
$used_vars[] = $name;
}
}
return $used_vars;
}
}
/**
* Overrides RulesDataInputEvaluator::prepare().
*/
public function prepare($text, $var_info) {
// A returned NULL skips the evaluator.
$this->setting = self::getUsedVars($text, $var_info);
}
/**
* Evaluates PHP code contained in $text.
*
* This method doesn't apply $options, thus the PHP code is responsible for
* behaving appropriately.
*/
public function evaluate($text, $options, RulesState $state) {
$vars['eval_options'] = $options;
foreach ($this->setting as $key => $var_name) {
$vars[$var_name] = $state->get($var_name);
}
return rules_php_eval($text, rules_unwrap_data($vars));
}
/**
* Overrides RulesDataInputEvaluator::help().
*/
public static function help($var_info) {
module_load_include('inc', 'rules', 'rules/modules/php.rules');
$render = array(
'#type' => 'fieldset',
'#title' => t('PHP Evaluation'),
'#collapsible' => TRUE,
'#collapsed' => TRUE,
) + rules_php_evaluator_help($var_info);
return $render;
}
}
/**
* A data processor using PHP.
*/
class RulesPHPDataProcessor extends RulesDataProcessor {
/**
* Overrides RulesDataProcessor::form().
*/
protected static function form($settings, $var_info) {
$settings += array('code' => '');
$form = array(
'#type' => 'fieldset',
'#title' => t('PHP evaluation'),
'#collapsible' => TRUE,
'#collapsed' => empty($settings['code']),
'#description' => t('Enter PHP code to process the selected argument value.'),
);
$form['code'] = array(
'#type' => 'textarea',
'#title' => t('Code'),
'#description' => t('Enter PHP code without &lt;?php ?&gt; delimiters that returns the processed value. The selected value is available in the variable $value. Example: %code', array('%code' => 'return $value + 1;')),
'#default_value' => $settings['code'],
'#weight' => 5,
);
return $form;
}
/**
* Overrides RulesDataProcessor::editAccess().
*/
public function editAccess() {
return parent::editAccess() && (user_access('use PHP for settings') || drupal_is_cli());
}
/**
* Overrides RulesDataProcessor::process().
*/
public function process($value, $info, RulesState $state, RulesPlugin $element) {
$value = isset($this->processor) ? $this->processor->process($value, $info, $state, $element) : $value;
return rules_php_eval_return($this->setting['code'], array('value' => $value));
}
}
/**
* Action and condition callback: Execute PHP code.
*/
function rules_execute_php_eval($code, $settings, $state, $element) {
$data = array();
if (!empty($settings['used_vars'])) {
foreach ($settings['used_vars'] as $key => $var_name) {
$data[$var_name] = $state->get($var_name);
}
}
return rules_php_eval_return($code, rules_unwrap_data($data));
}
/**
* Evaluates the given PHP code, with the given variables defined.
*
* @param string $code
* The PHP code to run, including <?php and ?>
* @param array $arguments
* Array containing variables to be extracted to the code.
*
* @return
* The output of the php code.
*/
function rules_php_eval($code, $arguments = array()) {
extract($arguments);
ob_start();
print eval('?>' . $code);
$output = ob_get_contents();
ob_end_clean();
return $output;
}
/**
* Evaluates the given PHP code, with the given variables defined.
*
* This is like rules_php_eval(), but does return the returned data from
* the PHP code.
*
* @param string $code
* The PHP code to run, without <?php or ?>
* @param array $arguments
* Array containing variables to be extracted to the code.
*
* @return
* The return value of the evaled code.
*/
function rules_php_eval_return($code, $arguments = array()) {
extract($arguments);
return eval($code);
}
/**
* @} End of "addtogroup rules"
*/