PHP serialization function serialize () and unserialize () vs. native function

This article mainly introduces PHP serialization function serialize () and unserialize () and PHP native serialization method comparison, the need for small partners can refer to.

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:

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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:

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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.

The above mentioned is the entire content of this article, I hope you can enjoy.

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