Php json and xml serialization/deserialization

In web development, Object serialization and deserialization are often used. The mainstream formats include json format and xml format serialization and deserialization. Today I want to write a small jsop demo, the result shows that php serialization is not used. I checked the information and made a note to serialize/deserialize the json format of a simple array.

Php provides json_encode and json_decode functions to serialize and deserialize objects in json format.

$ Data = array ('name' => 'byron ', 'age' => 24, 'sex' => 'male ', 'friends' => array ('casper ', 'frank', 'Vincent'); $ json = json_encode ($ data ); // serialize the array into a json string echo $ json. '<br/>'; $ array_json = json_decode ($ json); // deserializes A json string into an array while (list ($ key, $ value) = each ($ array_json) {if (! Is_array ($ value) {echo "$ key: $ value <br/>" ;}else {echo "$ key:"; foreach ($ value as $ current) {echo "$ current success";} echo '<br/> ';}}

Simple array xml format serialization/deserialization

Php provides the wddx_serialize_value and wddx_deserialize functions to serialize and deserialize objects in xml format.

$ Data = array ('name' => 'byron ', 'age' => 24, 'sex' => 'male ', 'friends' => array ('casper ', 'frank', 'Vincent'); $ xml = wddx_serialize_value ($ data ); // serialize the array into an xml string echo $ xml. '<br/>'; $ array_xml = wddx_deserialize ($ xml); // deserializes an xml string into an array while (list ($ key, $ value) = each ($ array_xml) {if (! Is_array ($ value) {echo "$ key: $ value <br/>" ;}else {echo "$ key:"; foreach ($ value as $ current) {echo "$ current success";} echo '<br/> ';}}

 

Although the output format is strange due to HTML transcoding, The serialized string is actually like this

Compared with the json format, many fields are added.
Serialization/deserialization of complex objects in json format many times when we operate, the processed objects are not a simple array, but an array of custom objects, json_encode and json_decode are also competent. Customizes an object similar to the preceding array content

class Me { public $name; public $age; public $friends; function __construct($name,$age,$friends) { $this->name=$name; $this->age=$age; $this->friends=$friends; } }

 

$ Me1 = new Me ('byron ', 24, array ('casper', 'frank', 'Vincent '); $ me2 = new Me ('casper', 25, array ('byron ', 'frank', 'Vincent'); $ me3 = new Me ('frank', 26, array ('casper ', 'byron ', 'Vincent '); // create a complex array. The child element is a custom class. The custom class contains the array field $ array_me = array ($ me1, $ me2, $ me3); $ json = json_encode ($ array_me); // The serialized object array is a json string echo $ json. '<br/>'; $ a = json_decode ($ json); // deserializes a json string into an object array foreach ($ a as $ aa) {echo $ aa-> name. '<br/> ';}

 

 

We can see that the serialized string format is very consistent with expectations. The same wddx_serialize_value and wddx_deserialize functions can be used to serialize or deserialize complex objects in xml format. The preceding example is used.

$ Me1 = new Me ('byron ', 24, array ('casper', 'frank', 'Vincent '); $ me2 = new Me ('casper', 25, array ('byron ', 'frank', 'Vincent'); $ me3 = new Me ('frank', 26, array ('casper ', 'byron ', 'Vincent '); // create a complex array. The child element is a custom class. The custom class contains the array field $ array_me = array ($ me1, $ me2, $ me3); $ xml = wddx_serialize_value ($ array_me); // The serialized object array is an xml string echo $ xml. '<br/>'; $ a = wddx_deserialize ($ xml); // deserializes an xml string into an object array foreach ($ a as $ aa) {echo $ aa-> name. '<br/> ';}

The generated xml string structure is as follows:

At last, php is a beginner. I hope you will criticize and correct this article.