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<?php $obj = new stdClass(); $obj->name = 'Fred'; $obj->job = new stdClass(); $obj->job->position = 'Janitor'; $obj->job->years = 4; print_r($obj); echo 'Years in current job: '.string($obj, 'job->years').PHP_EOL; function string($obj, $path_str) { $val = null; $path = preg_split('/->/', $path_str); $node = $obj; while (($prop = array_shift($path)) !== null) { if (!is_object($null) || !property_exists($node, $prop)) { $val = null; break; } $val = $node->$prop; // TODO: Insert any logic here for cleaning up $val $node = $node->$prop; } return $val; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
stdClass Object ( [name] => Fred [job] => stdClass Object ( [position] => Janitor [years] => 4 ) ) Warning: Undefined variable $null in /in/ouK2p on line 19 Years in current job:
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
stdClass Object ( [name] => Fred [job] => stdClass Object ( [position] => Janitor [years] => 4 ) ) Notice: Undefined variable: null in /in/ouK2p on line 19 Years in current job:
Output for 7.3.32 - 7.3.33
stdClass Object ( [name] => Fred [job] => stdClass Object ( [position] => Janitor [years] => 4 ) ) Years in current job:
Output for 4.3.10 - 4.3.11, 4.4.0 - 4.4.9, 5.0.2 - 5.0.3
stdClass Object ( [name] => Fred [job] => stdClass Object ( [position] => Janitor [years] => 4 ) ) Notice: Undefined variable: null in /in/ouK2p on line 19 Years in current job:
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
stdClass Object ( [name] => Fred [job] => stdClass Object ( [position] => Janitor [years] => 4 ) ) Notice: Undefined variable: null in /in/ouK2p on line 19 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/ouK2p on line 10 Years in current job: PHP_EOL
preferences:
243.66 ms | 402 KiB | 459 Q