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<?php class A { static function cast(&$val, $key) { if (is_numeric($val)) { $val += 0; } } static function run() { $arr = ['stri33ng123', 84, 076.7, '45.6', '67.5e45', '56,9', '098']; var_dump($arr); //array_walk($arr , ['self', 'cast']); array_walk($arr , 'self::cast'); var_dump($arr); } } A::run();
Output for git.master, git.master_jit, rfc.property-hooks
array(7) { [0]=> string(11) "stri33ng123" [1]=> int(84) [2]=> float(76.7) [3]=> string(4) "45.6" [4]=> string(7) "67.5e45" [5]=> string(4) "56,9" [6]=> string(3) "098" } Deprecated: Use of "self" in callables is deprecated in /in/GraXs on line 15 array(7) { [0]=> string(11) "stri33ng123" [1]=> int(84) [2]=> float(76.7) [3]=> float(45.6) [4]=> float(6.75E+46) [5]=> string(4) "56,9" [6]=> int(98) }

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