How to convert serialized data into array in php

Conversion method: 1. Use "unserialize($str)" to restore the serialized data; 2. Use json_encode() and json_decode() to convert the restored data into an array type, the syntax "json_decode(json_encode() Restore data),TRUE)".

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

We sometimes encounter during the development process It is necessary to serialize and store objects or arrays and deserialize them for output. Especially when you need to store an array into a MySQL database, you need to serialize the array.

All values ​​in PHP can be converted into a string that can be stored using the serialize() function, which is serialization.

If you want to restore the serialized data, you can use the unserialize() function; this function can change the string back to the original value of PHP, that is, deserialization.

php method to convert serialized data into an array

1. Use the unserialize() function to restore serialized data

unserialize($str)

Among them, $str is the string serialized using the serialize() function. If the incoming string cannot be deserialized, FALSE is returned and an E_NOTICE is generated.

2. Convert the restored data to an array type

Use the json_encode function to convert the object into json data, and then use the json_decode function to convert the json data into an array.

<?php
$obj=serialize((object)array("11","22","33"));
var_dump($obj);
$res=unserialize($obj);
$arr=json_decode(json_encode($res),TRUE);
var_dump($arr);
?>

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