<?php class Custom { public $sum = NULL; function __construct() { $this->sum = function ($a, $b) {return $a + $b;}; } } $cl = new stdClass; $cl->sum = function ($a, $b) {return $a + $b;}; $custom = new Custom(); echo ($custom->sum)(44, 44); echo ($cl->sum)(33, 33);
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Value for `_results` contains invalid data `array`