<?php $array = ["arr"=>["0", "1", "2"], "integer_value"=>"3", "float_value"=>"-0.5"]; array_walk_recursive($array, function(&$value, $key) { if(is_numeric($value)) { $value = (string)((int)$value)===$value ?(int)$value :(double)$value; } }); var_dump($array);
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