PHP serialization format
The PHP serialization format is the serialization format used by the PHP programming language. The format can serialize PHP's primitive and compound types, and also properly serializes references.[1] The format was first introduced in PHP 4.[2]
In addition to PHP, the format is also used by some third-party applications that are often integrated with PHP applications, for example by Lucene/Solr.[3]
Syntax
The syntax generally follows the pattern of one-letter code of the variable type, followed by a colon, followed by the variable value, followed by a semicolon.
| Type | Serialization examples |
|---|---|
| Null | N;
|
| Boolean | b:1;b:0;
|
| Integer | i:685230;i:-685230;
|
| Floating point | d:685230.15;d:INF;d:-INF;d:NAN;
|
| String | s:6:"A to Z";
|
| Associative array | a:4:{i:0;b:1;i:1;N;i:2;d:-421000000;i:3;s:6:"A to Z";}a:2:{i:42;b:1;s:6:"A to Z";a:3:{i:0;i:1;i:1;i:2;i:2;i:3;}}
|
| Object | O:8:"stdClass":2:{s:4:"John";d:3.14;s:4:"Jane";d:2.718;}
|
External links
| People |  | |
|---|---|---|
| Resources | ||
| Implementations | ||
| Web frameworks | ||
| Testing | ||
| ORMs | ||
| IDEs | ||
| Widget toolkit | ||
References
- ^ "Serialization". PHP Internals Book. Retrieved 2020-07-05.
{{cite web}}: CS1 maint: url-status (link) - ^ "PHP: serialize - Manual". PHP: Hypertext Preprocessor. Retrieved 2020-07-05.
{{cite web}}: CS1 maint: url-status (link) - ^ "Response Writers | Apache Solr Reference Guide 8.5". lucene.apache.org. Retrieved 2020-07-05.