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<?php function isJson2($string) { try { json_decode($string); } catch (ErrorException $e) { return FALSE; } return (json_last_error() == JSON_ERROR_NONE); } /** * Checks whether a string is valid JSON. * * @param string $string * @return boolean */ function isJson($string) { // Make sure the string is not empty and whether it is a string. if(!empty($string) && is_string($string)) { json_decode($string); return (json_last_error() == JSON_ERROR_NONE); } return false; } $a=['arraiii'=>['dentro'=>234]]; $b=json_encode(['asdf']); $c=''; var_dump(json_decode($b)); var_dump(isJson($b));
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { [0]=> string(4) "asdf" } bool(true)

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