note 98694 added to ref.classobj

We have an array with many objects in a style like <?php $step = new StepModel(1); // if the StepModel id is "1" $demand = $step->getDemand(); // returns DemandModel $step2 = $demand->getCustomer(); // returns StepModel $demand2 = $step2->getDemand(); // returns DemandModel // [ ... ] ?> $step and $step2 can be the same objects. So we have an recursive array. Now we need to know if $step == $step2 or $step === $step2. In other words: We need to know the php internal resource ids. Because there is no function in php api, we made the following function. Be careful: In our case, all objects have as first attribute ["id":protected]. If your objects are different from this, you need to edit $pattern. Warning: function is very slow and should only be called if it's necessary for debugging reasons: <?php /** * returns resource- and object-ids of all objects in an array * * @param array $array * @return array */ function getObjectInformation(Array $array) { // start output-buffering ob_start(); // create an var_dump of $array var_dump($array); // save the dump in var $dump $dump = ob_get_contents(); // clean the output-buffer ob_end_clean(); // delete white-spaces $dump = str_replace(' ', '', $dump); // define the regex-pattern // in our case, all objects look like this: // // object(ClassName)#1(1){ // ["id":protected]=> // string(1)"1" $pattern = '/object\(([a-zA-Z0-9]+)\)#([0-9]+)\([0-9]+\){\\n'; $pattern .= '\["id":protected\]=>\\n'; $pattern .= 'string\([0-9]+\)"([v]?[0-9]+)"/im'; // search for all matches preg_match_all($pattern, $dump, $regs); // sort all mathes by class name, object id and then resource id array_multisort($regs[1], SORT_ASC, SORT_STRING, $regs[3], SORT_ASC, SORT_NUMERIC, $regs[2], SORT_ASC, SORT_NUMERIC); // cache the last match $lastMatch = array(); // the return value $return = array(); // loop through the matches for ($i = 0; $i < sizeof($regs[0]); $i ++) { // check if the current match was not visited before if (0 == sizeof($lastMatch) || $regs[1][$i] != $lastMatch[1] || $regs[2][$i] != $lastMatch[2] || $regs[3][$i] != $lastMatch[3]) { // save the match in return value array_push($return, array($regs[1][$i], $regs[2][$i], $regs[3][$i])); } // save match in last match cache $lastMatch[1] = $regs[1][$i]; $lastMatch[2] = $regs[2][$i]; $lastMatch[3] = $regs[3][$i]; } // return all matches return $return; } ?> I know, it's not that elegant but I hope it's useful for a few people. ---- Server IP: 69.147.83.197 Probable Submitter: 80.137.232.152 ---- Manual Page -- http://www.php.net/manual/en/ref.classobj.php Edit -- https://master.php.net/note/edit/98694 Del: integrated -- https://master.php.net/note/delete/98694/integrated Del: useless -- https://master.php.net/note/delete/98694/useless Del: bad code -- https://master.php.net/note/delete/98694/bad+code Del: spam -- https://master.php.net/note/delete/98694/spam Del: non-english -- https://master.php.net/note/delete/98694/non-english Del: in docs -- https://master.php.net/note/delete/98694/in+docs Del: other reasons-- https://master.php.net/note/delete/98694 Reject -- https://master.php.net/note/reject/98694 Search -- https://master.php.net/manage/user-notes.php