_php Instance of PHP serialization function serialize () and unserialize () vs. native function

In PHP, there is a good way to format a string and transform an array or object, that is, serialization processing.
There are two ways to serialize variables.

The following example uses the Serialize () and Unserialize () functions:

A complex array
$myvar = array (
 ' hello ', +,
 Array (1, ' two '),
 ' Apple '
);

Convert to a string
$string = serialize ($myvar);

echo $string;
/* Prints
a:4:{i:0;s:5: "Hello"; I:1;i:42;i:2;a:2:{i:0;i:1;i:1;s:3: "Two";} I:3;s:5: "Apple";}
*

//You can reproduce the original variable
$newvar = Unserialize ($string);

Print_r ($newvar);
/* Prints
array
(
  [0] => Hello
  [1] =>
  [2] => array
    (
      [0] => 1
      [1 ] => two
    )

  [3] => Apple
)
* *

This is a native PHP serialization method.

However, thanks to JSON's popularity in recent years, support for JSON format has been added to PHP5.2.

Now you can use the Json_encode () and Json_decode () functions:

A complex array
$myvar = array (
 ' hello ', +,
 Array (1, ' two '),
 ' Apple '
);

Convert to a string
$string = Json_encode ($myvar);

echo $string;
/* Prints
["Hello", 42,[1, "two"], "apple"]
*//You

can reproduce the original variable
$newvar = Json_decode ($string);

Print_r ($newvar);
/* Prints
array
(
  [0] => Hello
  [1] =>
  [2] => array
    (
      [0] => 1
      [1 ] => two
    )

  [3] => Apple
)
* *

This will be more effective, especially if it is compatible with many other languages, such as JavaScript.

Note: For complex objects, some information may be lost.

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